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HCC Property Services.

Engineering Services Unit

Standard specification for materials, workmanship and installation of electrical services Parts A

October 2011

Document:

Standard specification for materials, workmanship and installation of electrical services installations Parts A

HCC Property Services Reference:

F7111/sp/rc Version 1.0 (A)

Author:

Name: Steve Perry Position: Principal Electrical Engineer.

Date:

October 2011

Document Checked and Approved:

Name: Andy Howard Position: Engineering Team Leader

Signed:

Electrical Engineering Specification 2011

Part A: General requirements, conditions &

procedures

Section A1: Quality of installation, services & performance

Page: 3 of 49 Heading 3 Date printed: 10/11/2011

Contents

A1 Quality of installation, services & performance ..............................................................................................................6

A1.1 Extent of Specification .............................................................................................................................................6

A1.2 Visit to site .....................................................................................................................................................................6

A1.3 Definitions .....................................................................................................................................................................6

A1.4 Scope of works ...........................................................................................................................................................7

A1.5 Contractor design portion of the works .............................................................................................................7

A1.6 Regulations & compliance .....................................................................................................................................8

A1.7 Schedule of rates and quantities .........................................................................................................................9

A1.8 Instructions and variations .....................................................................................................................................9

A1.9 Daywork .........................................................................................................................................................................9

A1.10 Approval ...................................................................................................................................................................... 10

A1.11 Quality of materials, workmanship & standards......................................................................................... 10

A1.11.1 General Requirements ......................................................................................................... 10

A1.11.2 Underground Services .......................................................................................................... 11

A1.12 Manufacturer‟s standards .................................................................................................................................... 12

A1.13 Samples ...................................................................................................................................................................... 12

A1.14 Conditions of service ............................................................................................................................................. 12

A1.15 Supervision ................................................................................................................................................................ 13

A1.16 Site Cleanliness ....................................................................................................................................................... 13

A1.17 Access for Plant installation and Subsequent Removal ......................................................................... 14

A1.18 Painting and galvanising ...................................................................................................................................... 14

A.1.19 Storage ........................................................................................................................................................................ 14

A.1.20 Redundant materials ............................................................................................................................................. 15

A.1.21 Return of empty cases .......................................................................................................................................... 15

A1.22 Drawings ..................................................................................................................................................................... 16

A1.22.1 Generally .................................................................................................................................... 16

A1.22.2 Electronic drawing production protocol ......................................................................... 16

A1.22.3 Approvals ................................................................................................................................... 16

A1.22.4 Contract drawings .................................................................................................................. 17

A1.22.5 Manufacturers drawings ...................................................................................................... 18

A1.22.6 Installation drawings .............................................................................................................. 18

A1.22.7 Revisions and variations...................................................................................................... 18

A1.22.8 Builders work drawings ........................................................................................................ 19

A1.22.9 Drawing co-ordination ........................................................................................................... 20

A1.23 Contractor‟s submittals ......................................................................................................................................... 20

A1.23.1 Equipment technical submissions ................................................................................... 20

A1.23.2 Other submissions required ............................................................................................... 21

A1.24 Builders Work ........................................................................................................................................................... 21

A1.24.1 Sub-contracts ........................................................................................................................... 21

A1.24.2 Direct contracts........................................................................................................................ 22



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A1.25 Setting out and co-ordination of services ..................................................................... 23

A1.26 Fixings & supports .................................................................................................................................................. 23

A1.27 Clearances................................................................................................................................................................. 24

A1.28 Concealed work ....................................................................................................................................................... 24

A1.29 Off-loading and installation ................................................................................................................................. 25

A1.30 Protection of works ................................................................................................................................................. 25

A1.31 Provision of dust sheets and scaffolding ...................................................................................................... 26

A1.32 Inconvenience to occupants............................................................................................................................... 26

A1.33 Maintaining existing services ............................................................................................................................. 26

A1.34 Safety precautions .................................................................................................................................................. 27

A1.35 Asbestos ..................................................................................................................................................................... 28

A1.36 Handover .................................................................................................................................................................... 28

A1.36.1 Testing and commissioning ................................................................................................ 28

A1.36.2 O & M instruction manuals and record drawings ...................................................... 28

A1.36.3 Spares ......................................................................................................................................... 28

A1.36.4 Practical completion .............................................................................................................. 29

A1.36.5 Tuition and training ................................................................................................................ 30

A1.37 Rectification liability period ................................................................................................................................. 31

A1.38 Maintenance, servicing & certification............................................................................................................ 32

END OF SECTION A1 ................................................................................................................................... 32

A2 Protection systems, commissioning and testing ......................................................................................................... 33

A2.1 Electricity supply ..................................................................................................................................................... 33

A2.2 Earthing and equipotential bonding ................................................................................................................ 33

A2.2.1 General ....................................................................................................................................... 33

A2.2.2 Consumer‟s Earth Terminal ............................................................................................... 34

A2.2.3 Circuit Protective Conductors ............................................................................................ 34

A2.2.4 Earthing of switchboards ..................................................................................................... 35

A2.2.5 Earthing of light columns and bollards .......................................................................... 35

A2.2.6 Lightning protection earth terminations and electrodes ......................................... 35

A2.2.7 Additional requirements ....................................................................................................... 36

A2.2.8 Clean Earth ............................................................................................................................... 37

A2.3 Commissioning and testing ................................................................................................................................ 37

A2.3.1 General ....................................................................................................................................... 37

A2.3.2 Scope of testing ...................................................................................................................... 37

A2.3.3 Testing of Equipment which includes Electronic Components ........................... 38

A2.3.4 Commissioning ........................................................................................................................ 38

A2.3.5 Re-testing ................................................................................................................................... 38

A2.4 Circuit charts and labels ....................................................................................................................................... 38

A2.5 Electric shock notice .............................................................................................................................................. 39

A2.6 Rubber matt .............................................................................................................................................................. 40

END OF SECTION A2 ................................................................................................................................... 40

A3 O & M instruction manuals and record drawings ....................................................................................................... 41



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A3.1 Introduction ................................................................................................................................................................ 41

A3.2 Draft manuals ........................................................................................................................................................... 41

A3.3 Contents ..................................................................................................................................................................... 42

A3.3.1 Contractor to note ................................................................................................................... 42

A3.3.2 Emergency procedure .......................................................................................................... 42

A3.3.3 Index ............................................................................................................................................ 42

A3.3.4 Introduction................................................................................................................................ 42

A3.3.5 Health and safety at work ................................................................................................... 42

A3.3.6 General description................................................................................................................ 42

A3.3.7 Technical data .......................................................................................................................... 43

A3.3.8 Operating procedures and instructions ......................................................................... 43

A3.3.9 Test and commissioning certificates .............................................................................. 43

A3.3.10 Record drawings ..................................................................................................................... 43

A3.4 Additional documents ............................................................................................................................................ 45

A3.5 Folders: presentation ............................................................................................................................................ 45

A3.6 Approved format for the manuals ..................................................................................................................... 46

A3.7 Final documents ...................................................................................................................................................... 48

A3.8 Building Log Book ................................................................................................................................................... 48

END OF SECTION .......................................................................................................................................... 49



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A1 Quality of installation, services & performance A1.1 Extent of Specification The Specification refers to the supply, installation, testing and commissioning and maintenance during the warranty period for the complete engineering building services to be carried out by the Contractor. In the event of a discrepancy and/or contradiction between the Specification and related documents and drawings, the Contract Administrator (CA) will supply such particulars or verify and rectify the discrepancy. Should the Contractor discover any such discrepancy they shall bring it to the attention of the CA. Where Part 'B Standards of Materials, Workmanship and Installation" is at variance with Part 'C', The Particular Requirements, Part 'C' shall take precedence. The contract works shall comprise the complete installation and shall include manufacture, works testing and delivery to site, setting to work, testing and commissioning, provision of records and operating and maintenance manuals for the new and modified engineering building services as specified herein and outlined on the tender drawings. The contract works shall comprise the whole of the labour and all materials necessary to form a complete installation and such tests, adjustments and commissioning as are described in subsequent clauses and as may otherwise be required to give an effective working installation to the satisfaction of the CA. All Electrical Contractors carrying out any work on behalf of Hampshire County Council shall belong to either or both of the following bodies:

NICEIC

ECA

A1.2 Visit to site The Contractor shall visit the site before completing their tenders, and will be deemed to have satisfied themselves on the full nature of local conditions as regard accessibility, transport and storage of materials, the supply of and conditions affecting labour, and to have obtained all necessary information on all matters affecting the execution of the works. When the works are associated with existing and occupied buildings the Contractor shall make prior arrangements with the person in charge of the establishment before visiting the site. The address of the establishment and telephone number will be found in the particular specification. Claims on the basis of want of knowledge in respect of site condition will not be accepted.

A1.3 Definitions



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The definitions for words, and phrases associated with the design, manufacture and site works for the electrical installations shall be those of the IEE Regulations, CIBSE (Chartered Institution for Building Services Engineers) and BSRIA (Building Services Research and Information Association) Guides, British Standards, Codes of Practice, associated Statutory Acts and mandatory authorities. Other non-technical definitions follow: a) Contract Administrator (CA):

The Architect, or his/her appointed representative, as given in Part C: Particular Requirements. b) Engineer:

The designer for the mechanical and/or electrical services or the appointed representative, as detailed in Part C: Particular specification.

c) Contractor:

Main Contractor, unless defined otherwise in Part C: Particular Requirements. d) Term Maintenance Contractor:

Contractor appointed to carry out maintenance and repairs to buildings. e) Contract Preliminaries:

This refers to the main contract preliminaries. The Contractor shall be responsible for ensuring that his tendered sum is all inclusive.

A1.4 Scope of works Refer to the following documentation:

Contract Preliminaries

Part B: Specification for Materials, Workmanship & Installation

Part C: Particular Requirements:

Schedules

Appendices

Tender drawings

A1.5 Contractor design portion of the works Where sections of the works have been specified on performance parameters and the Contractor has selected systems and equipment to meet these performance criteria, the Contractor shall ensure such systems and/or equipment will fully meet the specified performance requirements. Additionally, the selected systems/equipment shall not be incorporated in such a way as to adversely affect the operation of the rest of the installation. The Contractor shall provide to the Engineer, drawings, calculations etc, to prove his selections for performance specified works. These shall be provided before work commences on site in a reasonable time (minimum 14 days) for comments to be issued.



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The Contractor shall not commence ordering materials & equipment or proceed with an alteration until the drawings etc. have been commented upon by the Engineer. These comments will not be unreasonably withheld.

A1.6 Regulations & compliance All materials and workmanship shall be the best quality in accordance with the standards specified and shall conform to the requirements of the regulatory bodies as given in the specification and contract documents. All materials specified shall be in accordance with the latest British/European Standard Codes of Practice, British/European Standard, and ISO standards (latest amendments),Engineering specification. The whole of the works shall be executed in the most workman like manner. It shall comply with the best practices of the trades and conform in all respects with the current requirements. The Contractor shall provide certificates or letters stating the materials and installations are in accordance with the authority having jurisdiction over them, the regulations applicable, and the applicable British and ISO standards as follows:

Asbestos Regulations

British Standards & Codes of Practice

BS 7671 (IEE Wiring Regulations latest amendments)

BSRIA: Building Services Legislation – a directory of UK & EU Regulations

Building Regulations

CDM Regulations

Construction Health & Safety and Welfare Regulations

DfE Building Bulletins

Disability Discrimination Act

Electricity at Work regulations

Environmental Protection Regulations

Factories Acts

Fire Officer Committee Regulations

Health and Safety at Work Act

Health & Safety Commission Approved Code of Practise and Guidance:

Home Office Regulations

Local Authority By-laws

Fire Reform Act

Provision and use of work equipment regulations

Public Health Acts

Chartered Institution of Building Services Engineers

Statutory Instruments and any other relevant Acts of Parliament. Should there be any item specified or shown which may be considered as not complying, the Contractor shall notify the CA of this so that dispensation and/or clarification can be obtained. If certificates are not issued by the Authority having jurisdiction then the Contractor shall submit a letter stating the work complies in all aspects to the above standards and regulations. Any apparent conflicts found between the drawings, the specification and statutory requirements are to be notified immediately in writing to the CA by the Contractor.



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Company logos shall be removed from Fire Alarm, Security/Intruder Alarm, CCTV, Door Entry and Refuge Call System within all Hampshire County Council properties.

A1.7 Schedule of rates and quantities The Contractor shall on request submit within 14 days a Schedule of Quantities and rates upon which the tender has been based. The Schedule should detail quantities or rates for all work in accordance with the Standard Method of Measurement current edition. The Schedule shall be fully priced and totalled to the tender price. The schedule will be used for the pricing of variations. In the event of discrepancy in the Schedule, the quantities and or rates they shall be corrected as necessary, the total sum shall not be amended.

A1.8 Instructions and variations No variation shall be undertaken without written authorisation. The cost of each variation when requested shall be submitted before the work is carried out. Where permission is granted to proceed with the variation the cost shall be submitted within 14 days. Where work is carried out as dayworks the cost shall be submitted immediately the variation work is completed. When materials and equipment not included in the Schedule of Rates are required under a variation, the estimate submitted shall include a copy of any quotation received from the supplier and shall show separately the allowance required for overheads and profit. The price for a variation or instruction shall include any loss of time, out of sequence working or any effect on the Contractor‟s programme. Subsequent claims for anything associated with a variation or instruction will not be accepted.

A1.9 Daywork No work shall be carried out at daywork rates without prior written approval. Where daywork is permitted, time sheets signed by the Clerk of Works or other authorised personnel shall be submitted with detailed material schedules to support any claim. Where daywork exceeds one month in duration, time sheets shall be submitted at periods not exceeding one month. The signing of daywork sheets by the Clerk of Works or other person will not constitute authorisation of the work.



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The cost of authorised daywork will be calculated in accordance with the current Definition of Prime Cost of Daywork carried out under the Building Contract issued by the Royal Institution of Chartered Surveyors and the National Federation of Building Trades Employers. The percentage additions are for overhead, profit and those items defined in Section 4 of the above document. Labour rates will be those current at the time when the daywork is carried out and will be strictly nett JIB for electrical contracting rates and in accordance with the Working Rule Agreement.

A1.10 Approval The specification shall not be varied in any way unless agreed in writing. Where the specification indicates that approval is required for materials, workmanship, products or installation methods, time must be allowed by the Contractor within the construction/installation programme for this approval to be given in writing (14 days unless otherwise stated in Part C: Particular Requirements. Adequate time must be allowed for the CA to comment on the proposed alternatives, generally 10 working days unless stated otherwise in the terms of the agreed contract.

A1.11 Quality of materials, workmanship & standards A1.11.1 General Requirements The contract works shall be executed in a neat, substantial and workman like manner and in accordance with BS EN ISO 9000: Quality management and quality assurance standards. All materials and workmanship shall be of the various kinds described within the specification and shall be subjected from time to time to such tests as the CA may direct at the place of manufacture or fabrication, or on site or at such other place or places as may be specified herein. The Contractor shall ensure that all materials and equipment supplied are in accordance with all current issues and amendments of relevant British Standards, Specification and Codes of Practice. The Contractor shall ensure that all electrically powered equipment and materials supplied are suitable for the LV electricity supply available. Where and to the extent that materials products and workmanship are not fully specified, they are to be suitable for the purposes of the specified works stated herein and the contract documents and in accordance with good building practice, including the relevant provisions of current British Standards and other associated documents. The execution of the works shall be subject in all respects to the comment of the CA. No approval, comment or acceptance by the CA shall relieve the Contractor of his design responsibilities under the terms and conditions of the contract for the quality of materials and the standard of workmanship provided. The design, manufacture and installation of all plant, equipment and materials shall comply with all local codes and regulations. Where any portion of the Contract Works is covered by a British Standard Code of Practice the requirements of that Code are to be complied with unless specifically instructed by the CA in writing in reply to the Contractor‟s request for a ruling.



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The Contractor‟s attention is drawn to the fact that when enquiring for manufactured materials the manufacturer should be advised of the relevant standards. The consequences of any failure to comply with this requirement shall be the Contractor‟s sole responsibility. The Contractor shall be responsible for passing full details to the manufacturers of all materials and shall not assume that the CA has already established the necessary basis for quotations. Materials used in conjunction with or as part of the installation shall be incapable of spontaneous combustion, nor support combustion once ignited and shall be self extinguishing. All runs of cable trays and electrical containment, plant and equipment and all accessories shall be truly aligned with each other and the building, plumb or level. The Contractor shall allow, at no additional cost, for disconnecting and replacing after inspection any item of plant, fittings or accessories which are not installed in accordance with the requirements of the specified standards of materials and workmanship and re-fix the whole or any part of the installation as required by the CA. Except where specified otherwise, all materials and equipment associated with the installation shall be handled and installed strictly in accordance with the manufacturer‟s recommendations and shall be handled and installed by workmen who have had previous experience of the equipment and materials and who have, where necessary, attended a manufacturer‟s course on use and installation. The Contractor shall ensure that any special tools recommended by manufacturers for the installation of their materials and equipment are used by the workforce. The Contractor shall demonstrate that his workforce is competent and experienced to carry out the installation work to the standard called for in this specification. Where applicable the Contractor shall obtain and submit to the CA all manufacturers‟ guarantees of performance.

A1.11.2 Underground Services A1.11.2.1 Excavations Excavations shall be undertaken with due regard to the current Health and Safety requirements to protect work operatives and members of the general public. Open excavations must be safely fenced off from area used by members of the public. The Contractor is to exercise due diligence at all times whilst excavating. In areas congested with other services and in close proximity to mature trees, the Contractor must allow for hand digging to expose tree roots, pipework, cables, and drainage. Excavation may proceed once the Contractor is satisfied that the area is clear from obstruction. Where it is safe to do so, existing underground pipework, cables and drainage must be supported and shored up against possible collapse and damage. The Contractor shall, at no additional cost, repair/replace any pipes, cables, drainage and all associated equipment that may be damaged whilst undertaking the excavation and reinstatement works. A1.11.2.2 Existing services



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The proposed route of the new services may pass within areas that contain gas, water, heating pipework, electrical, telecommunications, IT and data cables, storm and foul drainage. Where record drawings showing existing underground services are included for use by the Contractor they must not assume that the locations shown are exact or that every service is shown. A CAT (cable avoidance tool) must be used to attempt to locate all existing pipework and electrical supplies prior to any excavations. Lifting of drain covers must be carried out to evaluate the depth and direction of drains.

A1.12 Manufacturer’s standards The inclusion in the drawings and specification of the names of any companies or proprietary items shall read as an indication of the quality, performance and workmanship required. Where manufacturers or companies are specified as Suppliers or Sub-Contractors they shall work within the terms and conditions of the Contract. The tender shall be submitted including materials and equipment by the manufacturers specified. All materials and equipment shall be suitable in all respects for the site conditions, both in terms of climate and specific location. Conditions under which these items are to be installed must also be taken into consideration. All equipment shall be capable of operating continuously under variation in the supply system of ±10% in the voltage and ±1% in the frequency. The Contractor may submit alternatives for consideration and these shall be submitted during the design period quoting the alternative manufacturer, catalogue reference or range without increase of costs to the tender price. The CA reserves the right to agree to alternative manufactured materials only if they meet or exceed the requirements of the originally specified product. The cost of any redesign would be at the Contractor‟s expense. Acceptance of alternative manufactured materials and equipment shall not relieve the Contractor of his contractual responsibilities.

A1.13 Samples Where products or materials are subject of the CA‟s comments, samples shall be submitted or other evidence of suitability shall be provided. Orders shall not be confirmed or materials used until the CA‟s comments have been received and approval granted. Approved samples shall be retained on site for comparison with products and materials installed.

A1.14 Conditions of service The contract works shall be installed to facilitate inspection, cleaning repairs, and for operation in which safety and continuity of services are the first considerations.



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All plant and equipment shall be designed to ensure satisfactory operation under the atmospheric conditions prevailing at the site. The completed installations shall incorporate every reasonable precaution and provision for the safety of all those concerned in the installation, operation and maintenance of the Contract Works. All materials used shall be of the best quality and of the class most suitable for working under the conditions specified and shall withstand the variations of temperature and atmospheric conditions arising under working conditions without distortion or deterioration or the setting up of undue stresses in any part, and also without affecting the strength and suitability of the various parts for the work which they have to perform. No welding, filling or plugging of defective parts will be permitted without the approval in writing of the CA. The selection of all plant and equipment must be such that variation may be made to its specified duty on site without major replacements. All plant and equipment shall operate without undue vibration and not exceed the specified noise levels. In the selection of plant and equipment spare parts must be assured and preference should be given to manufacturers that have local offices and/or agencies that offer a full spares and maintenance service. Operating boxes, kiosks, cubicles and similar enclosed compartments forming part of auxiliary equipment shall be adequately ventilated to restrict condensation and, where environmental conditions require, suitable integral low-temperature heaters shall be provided. All contactor or relay coils and other electrical parts shall be suitably protected against corrosion. All externally mounted apparatus shall be so designed as to avoid pockets in which water can collect and shall be weatherproof. Accessible means shall be provided for the easy lubrication of all bearing, mechanisms and moving parts. Grease lubricators shall be fitted with hexagon nipples. All mechanisms shall, when necessary, be constructed of stainless steel, brass or gunmetal to prevent sticking due to rust or corrosion. All apparatus shall be designed to obviate the risk of accidental short circuit due to animals, birds and vermin. Openings in ventilated enclosures shall be so constructed to prevent the entry of vermin and insects. All apparatus incorporating doors shall be erected so that the doors can be opened to at least 90° after adjacent equipment has been installed.

A1.15 Supervision The Contractor shall employ and maintain on the works a suitably trained and experienced supervisor, for the duration of the contract. The CA shall have the right to require replacement of any such person whose general conduct or quality of supervision is in the CA‟s opinion unsatisfactory.

A1.16 Site Cleanliness



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It is the responsibility of all operators to maintain site cleanliness. The Contractor shall provide and enforce all site cleaning procedures to the CA‟s requirements.

A1.17 Access for Plant installation and Subsequent Removal Before work is put in hand and orders are placed for large plant, the Contractor is to check on site or with the drawings if the plant has to be ordered before the building work is at a suitable point, the dimensions of all doorways, etc., serving as access to ensure that each item can be admitted to its allotted position and installed in such a way together with all other services, and that it can be replaced with similar replacement equipment at some future date. The Contractor can be called upon by the CA to demonstrate that plant and equipment can be removed for replacement or maintenance purposes and replaced, using the same materials except gaskets. Should the Contractor find during installation that it is not possible to make any equipment removable, then the Contractor must modify the arrangement in conjunction with the CA and all others concerned. On no account can the CA accept equipment that cannot be readily maintained in position, unless specifically agreed in a particular case in writing when maintenance after removal would be accepted.

A1.18 Painting and galvanising The Contractor shall be responsible for protecting all electrical equipment that has been installed from damage, and shall thoroughly clean all equipment before it is handed over. Any damaged paintwork shall be made good in colour and type of paint to match the original manufacturers finish. Mild steel or iron brackets or other items to be built-in are to be painted before building-in. In the case of materials or plant which is delivered to site already primed, the Contractor shall ensure the primer is suitable for the type of paint to be subsequently applied and shall make good any damage to the primer before further coats are applied. All items to be painted shall have an undercoating and a finishing coat in addition to the primer appropriate to the material being painted. The finishing coat shall be to a colour to be approved by the Engineer. All paints including primers, undercoats and finishing coats shall be of the best quality and shall be obtained from a Company approved by the Engineer, and shall be used in accordance with the makers instructions. Painting shall be done in accordance with the best practices in the trade. All surfaces must be thoroughly prepared including removal of dust, grease and protective coatings and in the case of iron or steel, the removal of rust and scale by abrasion followed by the application of an anti-rust solution to remove pitted rust. Where a galvanized finish has been specified it shall be applied by the hot dip process to BS ENIS01461: Specification for hot dip galvanised coatings on iron and steel articles. Except where otherwise approved, all iron and steel shall be galvanised after sawing, shearing, drilling, punching, polishing and machining are completed. The coating shall be smooth, clean, of uniform thickness and free from defects. Galvanising shall not adversely affect the mechanical properties of the coated material. Any surfaces which have deteriorated or become damaged prior to handover, shall be made good by cleaning and applying a cold galvanising paint.

A.1.19 Storage (Direct contracts only)



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Unless otherwise stated in Part C Particular Requirements, no storage facilities will be provided by the County Council for the use of the Contractor. Should the Contractor come to some suitable arrangements with the person in charge of the establishment, for this purpose, the County Council will not be responsible for any loss or damage that may be sustained by the Contractor.

A.1.20 Redundant materials The Contractor shall allow for the disconnection, removal and carting from site of all materials and equipment made redundant by the new installation. The redundant installation shall be confined to only the existing installation made redundant by the works specified herein and shown on the contract drawings. Other parts of the existing installation shall remain intact and undisturbed. If disturbance cannot be avoided, the installation shall be replaced in a workmanlike manner. The existing installation of lighting etc. shall remain intact until replaced by the new, when it shall be dismantled by the Contractor. Where it is necessary to remove or divert any part of the installation in order to facilitate the carrying out of the new installation, the method of effecting the alterations and the materials to be used must be approved by the Engineer. The Contractor shall strip out and dispose of all redundant wiring, fittings and materials from the existing installations where applicable to the contract, and shall allow in their tender any monies received in payment for scrap and/or redundant equipment. The Contractor shall check with the Engineer before disposing of any fittings which may be required for re-use in other installations. If any items are required to be retained they will be itemised in Part C: Particular Requirements. The Contractor shall ensure materials are removed from site regularly to avoid inconvenience and danger to occupants. Disposal of hazardous waste shall be carried out in strict accordance with “The Hazardous Waste (England and Wales) Regulations 2005”. The disposal of all waste must be in compliance with the requirements of the Site Waste Management Plan (SWMP) where one is in operation. If no SWMP is in operation all waste is to be segregated and disposed of in the most appropriate manner e.g. recycled, reused or as a last resort sent to landfill. Other parts of the existing installation shall remain intact and undisturbed. If disturbance cannot be avoided, the installation shall be replaced in a workman like manner. Other parts of the existing installation shall remain intact and undisturbed. If disturbance cannot be avoided, the installation shall be replaced in a workman like manner.

A.1.21 Return of empty cases The Contractor shall include in their tender for the return, carriage paid, of all empty crates or cases received containing articles or materials used in connection with the contract works. On completion of the contract, the site must be left clean and free of contracting materials, plant and equipment.



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The Contractor shall remove timber, cable, drums and slats from site immediately they have been finished with.

A1.22 Drawings A1.22.1 Generally All drawings provided by the Contractor shall be produced in electronic format using AutoCAD software programme. The latest issue of the programme shall be used unless otherwise agreed before the contract is let. Drawings submitted for comment shall be in paper format and not larger than A1 size unless previously agreed. Electronic copies of the drawings shall be submitted in PDF and AutoCAD formats.

A1.22.2 Electronic drawing production protocol Working drawings shall be produced by the Contractor and shall comply with the layering, line weight and colour protocol as set down by Hampshire County Council. Alternative drawing management procedures will not be approved. The electronic Tender drawings are produced using this protocol and guidance notes and templates will be made available upon request. A set of Contract drawings shall be electronically issued to the Contractor which may be used as a starter for the production of construction working drawings. The HCC standard drawing title block template shall be used and the contractors details shall be added to the title block. An electronic drawing template shall be provided with the issue of the Contract drawings. New drawing numbers shall used by the Contractor but reference to HCC drawings shall be included in the general notes area of each drawing. The font used for text shall be Arial in upper and lower case, as used for usual specification and other contract documentation. Drawings issued electronically (accompanying paper copies) for approval shall be rejected if the HCC protocol has not been followed.

A1.22.3 Approvals It shall be the Contractor‟s responsibility to ensure that drawings are submitted to the CA for comment in sufficient time to avoid delay in the works. The Contractor shall be responsible for any omission, errors or any discrepancies in the drawings and other particulars supplied by the Contractor or the Contractors suppliers, whether such drawings or particulars have been commented upon by the CA or not, provided that such omission, errors or discrepancies are not due to inaccurate information of particulars furnished in writing to the Contractor by the CA.



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Comments on any drawing by the CA shall not mean that the CA is responsible for the correctness of the drawing or its suitability for purpose. These responsibilities shall remain with the Contractor. Drawings issued for comment shall be submitted to the CA one of which shall be returned to the Contractor, with comments marked as appropriate. The drawing comments will be classified and noted with an A, B or C to show their level of status: Status: Description:

'A'

The CA has no further comment, the drawing remains subject to the Contractor‟s installation responsibility.

'B'

The CA has comments on the drawings but subject to the incorporation of those comments the drawing may be used for construction purposes at the Contractor's risk. The drawing must be revised to incorporate any comments and re-submitted for comment.

'C'

The drawing is unacceptable and will have to be redrawn and resubmitted for comment.

After final comment by the CA, the required number of copies of the drawings shall be distributed for construction.

A1.22.4 Contract drawings The whole of the work shall be executed according to the true intent and meaning of the contract, specification and drawings, and to the entire satisfaction of the CA. If during the tender period a discrepancy is noted, the Contractor shall inform the CA for the purposes of clarification. If at any time during the progress of the works any dispute or difference shall arise, (which cannot be resolved), as to the true meaning of the drawings or specification, or as to the quality of materials or workmanship, then such dispute or difference shall be decided by independent arbitration. The final position of equipment shall be taken from the installation drawings which have been commented upon by the CA. Diversion of conduits and cables to avoid clerestory windows, roof lights. doorways and other services and slight variations will not be considered for extra payment. All specifications, drawings and documents remain the property of Hampshire County Council and shall be returned with the tender but under separate cover. The documents shall be stamped with the company name to ensure there is no dispute over the source document on which the tender was based. In planning and co-ordinating the routes of services to equipment, accessories and other points, the Contractor shall refer to the room detail drawings to obtain details of any suspended ceiling, acoustic ceiling panels, etc. The position of equipment, accessories and other points may require adjustment to suit the layout and these shall be agreed with the CA. The Architectural drawings shall also be used to obtain details of tiling, finishes and furniture layout, etc, when planning the position of all other items of the electrical installation. The hanging of all doors shall be confirmed before commencing any installation work.



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A1.22.5 Manufacturers drawings Shop fabrication drawings shall be developed from, and fully co-ordinated with, the current contract drawings for the Mechanical and Electrical installations, Architectural and Structural Engineering construction drawings. Drawings shall be fully detailed and dimensioned indicating centres of supports and manufacturing details of the brackets which shall be submitted to the CA for comment. The Contractor shall allow sufficient time within his programme for site dimensions to be taken and not totally reliant upon the contract drawings. Dimensions given on the drawings are nominal sizes. All dimensions of ductwork shall be internal clear air way as shown on the drawings. Where ductwork is specified as being acoustically lined internally, these shall also be the clear inside dimensions. Any errors in the manufacture of the ductwork requiring alteration shall be corrected at the Contractor‟s expense without delay to the agreed construction programme. Manufacturers plant and equipment fabrication drawings shall be submitted to the CA for comment 14 days before manufacture commences. It shall be the CA‟s responsibility to ensure that comments are returned without causing delays therein. All drawings shall be produced using the current release of Auto CAD at the time of installation

A1.22.6 Installation drawings Work shall not commence until installation drawings have been commented upon by the CA. Delays due to late or inadequate submission of drawings or information will not be accepted. Works undertaken without CA‟s comments having been made will be at the Contractor‟s own risk. The following drawings shall be submitted to the CA for comment. This list is not exhaustive and additional drawings may be called for within Part C Particular Requirements, design and construction period:

Electrical Switch room layouts.

Co-ordinated mechanical & electrical drawings

Electrical installation including power and control wiring

Electrical Distribution switchboard/panels

Builders work in connection

Co-ordinated external services

A1.22.7 Revisions and variations Where schemes are subject to revision or variation, then the installation/working drawings, and finally the record drawings, must show the full effect. Where the scheme revision involves change to the Architectural or Structural details immediate notice must be given to the CA.



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Where scheme revisions are required to the works due to the Contractor‟s variation or revision then all cost for such revision will be the Contractor‟s responsibility including the design team consultants' costs incurred in the incorporation or administration of such revision. Designer‟s drawings must not to be used on site, all actual and proposed installation must be recorded accurately on a site set of drawings updated and available for inspection on site. Where drawings are revised and updated during construction these shall be issued to the CA for comments on the revision only. Only if the Contractor can give proof that a significant departure from the intent of the Specification has been necessary will a variation be recorded. This will not include normal detail development relating to inclusion of, nor development of, factors within the Contractor‟s design responsibility. The Contractor shall maintain, on site, a detailed marked-up record of the progress of the works detailing the extent of completed installation and all departures from the installation/working drawings. This site record must be incorporated in to the draft record drawings at no more than monthly intervals.

A1.22.8 Builders work drawings The Contactor's attention is drawn to the fact that some builder's work provision may have already been made within the design development interfacing with the Architectural and Structural Engineering schemes. The Contactor shall be responsible to detail their installation/working drawings around the Builder's Work information provided by the CA. If the Contactor considers it necessary to amend any Builder's Work information, the Contractor shall bring this to the attention of the CA who will amend drawings if appropriate. The Contactor shall prepare all other necessary Builder's Work Drawings required for the execution of this Contract, making due reference to the Structural and Architectural final dimensioned detail drawings as applicable. All drawings must be fully dimensioned. The Contactor shall be required to mark on site actual locations of all builder's work holes through walls, partitions, floors, etc., and also chases in walls, floors, etc., for conduits, pipes and the like and offer them for inspection by the CA prior to carrying out any work. The Contactor shall establish a method of working with the CA to ensure the works may proceed without hindrance. All Builder's Work drawings provided by the Contactor must be provided in sufficient time to comply with the agreed programme requirements and all costs arising from failure to do so will be met by the Contactor. The Contractor shall submit detailed builders work requirements to enable holes through the structure, over an above 50mm dia. to be constructed ahead of the installation and be incorporated into the building construction without causing delay to the building programme. The drawings submitted to the CA shall include full details of all plant bases. Plant bases shall be of a minimum 150mm clear height using materials commensurate with the floor on which the plant is to be located. Openings in the roofs shall include an upstand kerb or collar. The Contractor shall provide an over flashing apron over the upstand. The collar shall be fixed and sealed to the side of the ductwork.



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A1.22.9 Drawing co-ordination The Contractor shall be responsible for ensuring that the drawings are fully co-ordinated with all other disciplines for the purpose of construction comprising Architectural, Structural, Ductwork, Sprinkler, Mechanical & Electrical services drawings. Any clashes shall be corrected at the Contractor‟s expense and without affecting the construction programme. Comments made by the CA or the nominated representative shall not relieve the Contractor of his responsibilities in this respect.

A1.23 Contractor’s submittals The Contractor shall submit full details of the equipment to be used for the complete installation. It is the Contractor‟s responsibility to provide the required information prior to orders being placed. Any changes to the equipment proposed and that installed without written agreement from the CA, shall be changed accordingly at the Contractor‟s expense. Submittals shall be in addition and not in place of samples. Submittals shall contain, as a minimum, the following applicable to the specified scope of works. Although the CA or the nominated representative will inspect all submissions, the Contractor shall not be absolved of their contractual responsibilities in respect of the installation and the scope of works. Any comments made by the CA do not constitute approval.

A1.23.1 Equipment technical submissions

i) Fully detailed technical submission of all selected materials, items of plant and equipment:

Manufacturer

Type/Model

Physical Size

Output/capacity/duty

Speed

Electrical Load

Sound levels

Electrical containment

ii) Schedules are to be submitted for the following equipment:

Automatic controls and BMS

Lighting fittings

Automatic lighting controls (presence/absence detection)

Switchgear and accessories

Hand dryers

All specialist equipment



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A1.23.2 Other submissions required

Fully priced schedule of rates

Certificate of compliance with contract information including specification and drawings

Operating & Maintenance Instruction Manuals (2 copies)

Building Log Book

A1.24 Builders Work A1.24.1 Sub-contracts The Contractor shall provide for attending on the site from time to time as and when they are required to set out the works and to instruct the Main Contractor as to the position of holes, bases, supports, etc. Unless otherwise specified the Main Contractor shall carry out all work for engineering foundations, structural steelwork, cutting away and making good in walls, floors and ceilings, the cutting out and grouting in of clips, brackets, holding-down bolts, cutting of chases, etc, removal and replacement of other parts of the building fabric as may be necessary The Contractor will provide 150mm general/earthenware/plastic ducts within the foundations and/or floor slab of the building to facilitate the installation of the cables entering or leaving the building. These ducts shall be at the required depth and far enough from the building perimeter wall to finish in soft earth away from the areas of hardcore, ash, tarmacadam and paving. Within the building the ducts shall terminate in the required position close to the relevant wall using easy bends (minimum bending radius of 1.2m), to facilitate the careful installation of conduit wiring accessory boxes and fixings generally. The Contractor must allow for carrying out all their own associated builders work involved with such items as, drilling and plugging the structure for the fixing of any materials or fittings etc., or the supply of any clips, brackets or holding-down bolts, and must allow for the carrying out of this work and the supplying of the materials. This also applies to the supply, installation and painting of support steelwork for fusegear, switchgear, cables, cable tray and wiring enclosure, starters, control gear and lighting fittings etc. The Contractor shall be responsible for drilling all their required holes up to and including 50mm diameter. The Main Contractor shall be responsible for all holes and openings greater than 50mm diameter. The Contractor shall prepare drawings showing the positions and dimensions of all holes, ducts, chases etc., to be precast, built or cut in floors, roof, walls, ceilings or at any other position for the installation of the works, also drawings showing the size and construction of plinths, bases, special support of foundations required for this equipment. These drawings shall be submitted to the Main Contractor with copies to the CA for comment. They shall be complete and show all the relevant dimensions, in particular the sizes, depths and locations of holes, bolt holes and ducts, etc. The Contractor shall note that although the cost of incidental builders work is excluded from their contract, the cost of alterations due to inaccurate setting out must be borne by the Contractor. Before manufacturing any item of equipment required to register with holes to be cut by the Builder, the Contractor shall verify that it is in order for the holes to be cut in the position marked.



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A1.24.2 Direct contracts This will be the responsibility of the Contractor. All cutting away and making good shall be carried out by the Contractor. This shall include making good plastered surfaces and painting conduit and conduit accessories to match existing using competent specialist tradesmen. Decoration of complete walls and/or rooms and/or wallpapering shall be carried out by others under a separate contract but the Contractor shall be responsible for leaving the works and making good, clean and prepared for following trades. The Contractor‟s attention is drawn to the fact that buildings in any condition should be respected as such, and that care should be taken when cutting away. The cost of repairing any unnecessary or excessive cutting away will be charged to the Contractor. When considered necessary, removal and replacement of fixed and permanent floor coverings, making good and minor reductions shall be carried out at the discretions of the Area Property Manager or persons, to be employed by the Contractor, but selected by the Area property Manager. The cost of these works shall be expended from a Provisional Sum. When the contract works are being carried out in Listed Buildings, particular care should be taken and advice sought from the CA. The Contractor shall use rotary masonry drills for fixings and boring holes through walls, floors etc, the use of percussion cutting tools will not be permitted in any part of the building. When required, timber noggins shall be provided by the Contractor drilled and fixed in the required location to facilitate the installation of conduit wiring accessory boxes, and fixings generally. Fixing direct into false ceiling steel grid systems will only be allowed, using approved patent fixings. The use of Disc Cutters in occupied buildings shall not be used unless written permission has been given by the Engineer in the interests of preserving the building fabric for a specific reason. The Contractor shall dig, backfill and reinstate all cable trenches. When applicable, footpath, roadway or area lighting columns shall be placed perfectly vertical with the electricity cut out access door facing the required direction to facilitate easy maintenance and to avoid obstructions. Dry concrete weak mix shall be poured around the base of the column to a depth as recommended by the manufacturer. A Polythene duct shall be provided from within the column cable chamber to a suitable distance in accordance with manufacturer‟s requirements from the column and within the ground to enable incoming and looping-in cables to be installed so that „digging-out‟ close to the column, can be avoided. Backfill and compact to within 200mm of ground level thence with 150mm dry concrete weak mix and finally with a 50mm concrete collar to dress the paving. If necessary finish to match other forms of dressing.



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A1.25 Setting out and co-ordination of services The position of items of electrical equipment and plant indicated on the drawings are approximate and shall be used as a guide for tendering purposes. The exact position for fixing shall be determined on site to the approval of the Contract Administrator/ Engineer. Where possible, items on vertical surfaces at varying heights shown adjacent to each other in the drawings shall be fixed vertically in line. Symmetry of arrangement shall be obtained by horizontal and vertical alignment through the centre lines and/or the edges of the equipment. Items fixed within fair faced brick or blockwork, shall have their heights adjusted to centre on horizontal course lines. The Contractor shall be responsible for marking and setting out on site of all items, which shall be carried out in accordance with the requirements of the contract programme. In order that the best use may be made of the space available for the disposition of services, it is essential that the Contractor shall co-ordinate their own work with the work of others carrying out installations on the site. The Contractor may be required to prepare such detailed drawing of the proposed position of plant and equipment as may be required to enable the work to be co-ordinated in the general construction of the building, and to attend any meetings which may be called for this purpose. The Contractor shall be required to co-operate with any other specialist contractors who may be working on or be connected with the contract works. In positions where construction work and other services are to be installed, adjacent to or in the vicinity of these contract works, the Contractor shall co-operate in every respect with all parties concerned. In positions where other installations and services are complete, the Contractor shall co-ordinate their installation accordingly so as to avoid disruption to the these services. In the event of other existing services requiring alteration to enable the services to be installed, the Contractor shall obtain written authorisation from the CA for alteration or amendment before such work is carried out.

A1.26 Fixings & supports The Contractor shall supply and erect all steelwork brackets, cable tray and supports for the fixing of cables, conduits or trunking and equipment they are required to erect. Such brackets and supports shall be as manufacturer supplied or purpose made in accordance with the appropriate specification or drawings. All brackets and steelwork unless pre-finished, shall be painted or treated in accordance with clause A1.18, before erection or any other equipment is fixed onto them. All external steelwork fixings shall be galvanised.



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Fixing to brickwork shall be made direct into the brick or block and not the bond, unless the work is being carried out in an historical or listed building. Methods of fixing shall be appropriate to the weight and type of equipment being installed and shall comprise either screws and plugs, expanding bolts, nut and bolt or chemical fixings. Where there is any doubt as to the type of fixing that should be used, or the material into which the fixing is to be made, then specialist advice and the approval of the Engineer or Contract Administrator shall be sought. It shall be the responsibility of the Contractor to ensure, that where necessary, all supports, brackets, steelwork, timber noggins etc., are built into the building fabric at the appropriate time during the construction process. No steelwork or laminated timber beams/columns shall be drilled or cut for any purpose without the prior approval of the Engineer or Contract Administrator. The supply and fixing of all supports, brackets, clamps and spacers and any other steelwork, whether or not shown in detail on the drawings required for the proper and effective fixing of any equipment, shall be considered to be included in the material and labour covered by the supply of that equipment. Nuts shall be locked in position with lock nuts or lock washers, or castle-nut and split pin, or other devices if approved. Lock washers shall not be used above M24 except when a spring type is specially approved. No bolt or stud shall project through its nut by more than approximately l0mm or four threads whichever is the less, except for terminals and relay stems. Bolts, nuts and washers on outdoor equipment shall be of non-corroding material where they are in contact with non-ferrous parts in conductor clamps and fillings and elsewhere if specially required. Suitable special spanners shall be provided for bolts and nuts which are not properly accessible by an ordinary spanner.

A1.27 Clearances The clearance in front of electrical plant and switchboards shall not be less than 1.00m unless otherwise directed. Access clearances to system components shall provide adequate space for the operation, servicing and removing without disruption to or dismantling of other equipment and accessories.

A1.28 Concealed work Whenever work requiring inspection or testing is subsequently to be concealed, due notice shall be given to the CA so that inspection may be made or tests witnessed before concealment. Failure to give due notice, of at least 48 hours, shall necessitate the Contractor uncovering the work and reinstating it at the Contractors own expense. The CA reserves the right to forego their inspection, this will in no way relieve the Contractor's responsibility to comply with the Employer‟s Requirements.



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Where the CA believes that the installation may be defective the Contractor shall at his own cost uncover a specific area selected by the CA for inspection. This shall be restricted to 1 linear metre or 1m² depending on the nature of the work for each area of concealment. Reinstatement shall be at the Contractor‟s expense. Where works are proven defective by such uncovering, the entire installation shall be uncovered and brought into compliance with the specification.

A1.29 Off-loading and installation The supply, delivery, off-loading, positioning and installation of all equipment and materials detailed in the Specification or shown on the tender drawings shall form part of the contract works. This shall include the provision of all necessary craneage, hard standing for same, lifting tackle, trolleys, skids, tools, ladders, temporary workshop, gangways, fences, scaffolding other than that already erected, etc, and shall include the subsequent removal. The strength of floors across which heavy loads are to be moved shall be checked well in advance of the load being applied so that any routes of inadequate strength can be additionally supported without delaying the progress of the works. Plant and materials shall not be deposited on roadways, footpaths, corridors or rooms unless prior permission has been obtained in writing. The Contractor shall be responsible for making good any damage caused in the off-loading, movement or storage of materials and plant. Any materials or equipment damaged while carrying out these operations shall be replaced at the Contractor‟s expense. Where it is necessary to store on site materials and equipment for later installation it shall be properly protected from damage and theft. In general the material and equipment shall be immediately placed in a clean dry storage area which is enclosed and with the access lockable to prevent removal from site. If the space is not for the sole use of the Contractor then adequate protection shall be provided to prevent damage resulting for the use of the space by others. Unless the above provision is fulfilled, certification for payment of a valuation claim for the material and equipment will not be issued. All materials and equipment which suffers damage while stored, or becomes dirty, dusty or water damaged shall be replaced at the Contractor‟s cost.

A1.30 Protection of works The Contractor shall ensure proper protection of the building, the site, installation and materials from damage due to their own work, building operator/users activities, other Contractor‟s operations, vandalism and weather.



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Materials which suffer deterioration or rust will not be accepted and the cost of replacement or wire brushing, cleaning and repainting will be borne by the Contractor. To ensure adequate protection of materials, no material shall be delivered to site until they are required in accordance with the installation programme. This shall not be considered for delay on progress or completion of the contract. Second fix materials, e.g; accessories, light fittings, plant, and equipment face plates shall not be fixed in place until all decorations have been completed.

A1.31 Provision of dust sheets and scaffolding (Existing and occupied buildings)

The Contractor shall allow for moving and replacing loose furniture and erecting scaffolding over fixed furniture as necessary for progressing the electrical work. Each room or area completed by the Contractor for re-occupation by the Client shall be cleaned, and all furniture replaced before occupation takes place. The Contractor shall provide dust sheets and use them to cover furniture in every area where work is taking place. In addition to these areas, other areas in which builders work dust can drift and settle shall also be protected by dust sheets. Particular attention shall be taken to the protection and cleaning of kitchen areas.

A1.32 Inconvenience to occupants (Existing and occupied buildings)

The Contractor shall ensure that, when work is being carried out in occupied buildings, any inconvenience caused by the presence of the Contractors workforce is kept to an absolute minimum and on no account should the occupants of such building be harassed or aggravated by operatives creating a disturbance due to shouting, whistling or singing. Under no circumstances shall portable music players with loud speakers be used during working hours, inclusive of lunch and tea breaks. The Contractor‟s work force shall conduct themselves in a courteous manner at all times, remembering that at no time does the need to carry out the contract works give them the right to disregard in any way consideration or the convenience of the occupier. It will be deemed that the Contractor has made due allowance in his tender for the lack of continuity of works due to the aforesaid inconvenience.

A1.33 Maintaining existing services The Contractor must ensure that all existing services, are maintained in good working order at all times during the contract period and all supplies to Electrical Services installations in occupied areas are fully maintained during the required period of occupation.



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At no time are staff to be left without the services they require; all negotiations to be carried out via the person in charge of the establishment or persons they so delegate. Where necessary temporary supplies shall be installed, including the use of generator sets where required. The contractor shall allow for temporary supplies within existing building for fire alarms, intruder alarms, emergency lighting, residents call systems, telephone systems, data systems, office IT, fridge freezers and any other services listed in Part C Particular Requirements. In all cases particular care must be taken to ensure that any existing fire alarm, emergency lighting, residents call systems, telephone systems, intruder alarm, staff alarm system, fridge freezers, Office IT any other equipment/area listed in Part C Particular Requirements. are maintained in good working order at all times during the contract period. Where alterations to the services involves the disruption to the existing installation which is to remain, the Contractor shall test the installation prior to any works commencing and report any defects/deviations from the standards to the CA. Test and inspection reports shall not be relied upon for this information.

A1.34 Safety precautions The Contractor will not be allowed to use any naked lights, acetylene cutting or welding plant or to make any fires without a method statement and risk assessment agreed by the CA, and an appropriate permit to work issued. The Contractor shall be responsible for the condition of all their own/hired plant and portable hand tools used by him for progressing of the works. All portable tools must be 110 volts and fed from a double wound transformer, with the secondary mid point connected to earth. Should it be necessary to install temporary supplies, this should be done in such a way that the safety of the staff and pupils/building occupants, visitors are given priority consideration, and is in no way hazardous or detrimental to them, or the existing building and building fabric. For residential properties the Contractor must ensure that because of the particular circumstances whereby persons are in residence, the Contractor shall be required, when leaving the site at the end of each working day, to clear away tools, materials and plant, to replace floor boards and to ensure that no new, existing or temporary services shall interfere with or restrict the movements of the residents, or affect the safety of the residents. The Contractor shall effectively cordon off areas where work is being undertaken. Where floor duct covers are removed, the opening shall be securely barricaded to a standard not less than acceptable for a public walkway. Should the remaining access available be less than 600mm wide then a “no through route” shall be declared. Suitable warning notices stating “Duct covers removed” or “Danger work in progress” for example, shall be displayed at all times. Escape routes must not be impeded, any alternative shall be agreed with the CA. Access equipment, (i.e.; workstations, scaffolds, steps and ladders), shall be protected and made safe by a tradesmen in attendance at floor level. All materials and equipment shall be stored and left in a safe position to prevent any hazards to building occupants, visitors or operatives.



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The Contractor shall ensure that all their operatives, sub-contractors and tradesmen comply fully, at all times, with the Health and Safety at Work Act and CDM regulations.

A1.35 Asbestos The Contractor shall be aware that there may be asbestos based products installed within the existing building(s) and the Contractor shall take suitable steps to ensure that all their staff and sub-contractors are aware that asbestos may be encountered. Before undertaking any work or disturbing existing materials the Contractor shall check a copy of the Asbestos Register which records where asbestos is probably present. The Asbestos Register is not a definitive record of all asbestos on the site. The Contractor shall consider whether a more detailed survey is required before commencing work. Under no circumstances shall a Contractor disturb any material which may contain asbestos without specific instructions from the CA. In the event of asbestos being found anywhere on the site works shall stop immediately and must be reported to the CA and the site‟s Health & Safety representative simultaneously. The CA will take the necessary action outside of this Contract. No works shall be undertaken in these areas until the CA has completed investigations or remedial works and a “Certificate of Clearance” has been given.

A1.36 Handover A1.36.1 Testing and commissioning All testing and commissioning shall be carried out and the results shall be witnessed by the CA prior to practical completion being granted in accordance with this Specification Section A.3: Commissioning and Testing and the Part C: Particular Requirements.

A1.36.2 O & M instruction manuals and record drawings Approved manuals and record drawings shall form part of the handover and a certificate of practical completion will not be issued without the final approved documents being handed to the CA. Refer to Section A3: Operating & Maintenance Instruction Manuals and Record Drawings.

A1.36.3 Spares The Contractor shall at practical completion supply the following spare parts and loose material. In all cases the Contractor shall hand the materials to the person responsible for the building, i.e. Head teacher, Unit Manager, etc, and shall obtain a signed receipt in duplicate listing all items handed over. A1.36.3.1 Electrical spares



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Loose items shall include: i) Keys for operating special switches ii) Keys for opening bulkhead or similar vandal resistant luminaires iii) Keys for testing fire alarms break glass contacts (if fire alarm system specified) Spare to be supplied: i) 10 spare replacement glasses for fire alarm break glass contacts (if fire alarm system specified and

glasses fitted) ii) 3 HRC cartridge fuses for each size over 60A installed (where fitted) iii) 6 HRC cartridge fuses for each size 60A and below (where fitted) iv) 5 No Lamps of each type fitted. All of the above items are in addition to any other requirements, listed in Part C: Particular Requirements. A signature shall be obtained from the client to verify spares have been received and shall be included within the operation and maintenance manual.

A1.36.4 Practical completion The Contractor shall ensure that the whole of the installation has been tested and commissioned and shall be ready for operation by the date required by the works contract programme. Practical completion of the Contractor‟s works or agreed phase of the works will not be given until the Contractor has fulfilled their obligation under the Contract conditions, and in particular demonstrated to the satisfaction of the CA that the following are complete: All works are complete other than minor defects which could be reasonably completed within an agreed programme without causing disruption to the use of the building or agreed part. The CA shall be the sole arbiter of what may be considered „minor‟, “reasonably completed”, “an agreed programme” and “disruption to the occupier”. All tests and demonstrations have been satisfactorily undertaken in the presence of the CA. All final copies of the record/as built drawings, schedules, operating and maintenance manuals and „Part L‟ log books have been supplied in a format agreed by the CA. All spares, keys, tools, oils, chemicals and other materials required for the running and maintenance of the building services systems have been supplied. All instructions and training of the occupier/Employer‟s staff have been satisfactorily completed. All documentation required for the Health and Safety File have been provided as required by the CDM Regulations. Practical Completion Certificate shall not be issued until the final and approved O&M Manuals and Record Drawings and documentation has been submitted.



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The contractor shall provide the Employer with a full time (0900-1700 hours Monday to Friday), member of their staff to remain on site to co-ordinate the clearance of defects and report upon progress whenever required. The member of staff shall be of no less seniority than the Contractor‟s Supervisor involved in the installation. Where a handover that is otherwise agreed as being able to proceed, is affected by the failure to supply record drawings, operating and maintenance documentation, log books, training or Health and Safety File documentation, the Contractor shall be responsible for providing a suitably trained & experienced full time member of staff to operate and maintain all of the systems installed under the contract. This will be carried out in a safe, efficient and economical manner to meet with the Employer‟s working practice and Health and Safety legislation. The Contractor shall notify the CA, in writing of the date of completion and handing over of the whole or part of the works so that the date for commencement of the maintenance and defects liability period can be agreed. Failure to do this may involve the Contractor in an extended maintenance and defects liability period. When the whole of the works have been completed, tests have been carried out and the required operating and maintenance instructions and the manuals and record drawings have been handed over to the CA, then the maintenance period shall begin. The CA will confirm the receipt of documentation who will then issue a Certificate of Practical Completion at the time the building is handed over.

A1.36.5 Tuition and training The Contractor shall provide tuition and training for those representing the building user and/or Employer and the Maintenance Contractor. Tuition and training shall be carried out at practical completion and repeated, by agreement no more than four months after practical completion. When the tuition and training programmes are completed and demonstrated satisfactorily to the Client/end user and the HCC Term Maintenance Contractor, the appropriate form included in the project specification appendices shall be signed accordingly. Training shall be carried out in two parts as detailed below:- A1.36.5.1 User training This is for the building user/occupier, and shall be carried out at once at Handover and once during the defects liability period as a refresher. The Contractor shall provide trained and experienced personnel to fully instruct the Building Manager and/or their representative, in all aspects of the operation & control instructions for the building services installation, its plant, equipment & systems. Any instructions for equipment, plant & controls are to be provided in a simplified format, and encapsulated with a duplicate copy fixed adjacent to respective control panels. A1.36.5.2 Maintenance contractors staff training



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Allowance shall be made to provide trained and experienced personnel to fully instruct the Maintenance Contractor in the operation of all the building services installation, its plant, equipment & systems installed or modified as part of the contract. This shall be carried out at the end of the maintenance & defects liability period, & before the Certificate of Making Good Defects is issued and as detailed below:- The contractor shall: 1) include for a minimum of five days (unless specified otherwise in the contract preliminaries or Particular

specification) for plant operation and to instruct the maintenance staff, as described above, in the day to day running and maintenance of the plant, systems and equipment. This shall include demonstrating and comprehensively explaining the function of all plant, systems and equipment listed and detailed in Record Documents to the Employer's satisfaction.

2) arrange for, and include the costs associated with, attendance of manufacturers or suppliers

representatives as necessary. 3) allow for the fact that the period of instruction may not necessarily take place immediately upon

Practical Completion but when considered desirable by the Employer. 4) allow for a further two day period of instruction during either the Summer or Winter which ever is not

covered by the initial period. 5) ensure that each manufacturer or supplier of motive plant or equipment or controls includes all costs

associated with instructing and training of Employer's staff. 6) allow for the automatic controls and BMS specialist to give detailed instructions and training to the

building user and CA during the commissioning stage. This shall be repeated within the first month after handover, 6 months into the defects period and also at the end of the defects period.

The Contractor shall obtain a signature from the CA, and the Maintenance Contractor (when applicable) to signify that operating instructions have been given & understood. This is to be included within the operation and maintenance manual.

A1.37 Rectification liability period All Installation, materials, equipment and manufacturers warranties are to commence from issue of the Certificate of Practical Completion. The Contractor shall make good at their own expense any defects in workmanship, materials and equipment, fair wear and tear expected. The Contractor shall bear any expense by the Employer as a direct result of defects. The Rectification Liability Period for the Services Installation shall be 12 months unless stated otherwise in the contract preliminaries. This rectification liability period will remain fixed regardless of the maintenance period associated with other contracts or main contracts for the works as a whole. The Contractor shall advise the CA when all outstanding items and defects have been completed or rectified in order that a final inspection may be carried out.



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At the end of the Rectification Liability Period under the conditions of the contract, the CA will confirm to the Contractor that there are no outstanding defects. The CA will then issue a Certificate of Making Good Defects.

A1.38 Maintenance, servicing & certification (within the Warranty/Rectification Period)

The Contractor shall include within their tender submission, a full 12 month on site maintenance and servicing of the equipment and plant installed within the scope of the contract works. The schedule, attached as an Appendix to the Part C: Particular Requirements, shall be completed by the Contractor showing the number of visits and respective dates during the warranty period. The servicing and maintenance shall be in accordance with the manufacturers requirements and shall also include the following:-

Plant Frequency

Fire alarms non-education 4 per year

Fire alarms education 2 per year

Emergency lights 1 per year

Security systems/Personal attack systems

2 per year

Lifts - passenger Monthly

Lifts - Other 2-4 per year

Generators 3 per year

Call systems 1 per year

Door entry systems 1 per year

Costs shall be inclusive of the following:-

full training costs for personnel to take over the plant at the end of the 12 month period,

full record of operating and maintenance procedures undertaken for all the plant items installed,

records of all maintenance carried out by the Contractor shall be handed to the building‟s responsible person for inserting into and recording in the Building Log Book.

It shall be the Contractor‟s responsibility to maintain the electrical services until the end of the rectification liability period and completion certificate is issued. Where extended warranties of plant are required from manufacturers and/or suppliers, these shall be declared within this separate price. The Contractor is advised to ensure that all risks are covered so that all operating and maintenance carried out during the 12 month warranty period does not invalidate manufacturers warranties. When an agreed contract includes the first 12 months maintenance, the Contractor shall submit a programme to the CA for carrying out these works for agreement prior to Practical completion.

END OF SECTION A1

Electrical Engineering Specification 2011 Part A: General requirements, conditions &

procedures

Section A2: Protection, systems, commissioning & testing


A2 Protection systems, commissioning and testing A2.1 Electricity supply The address of the local Electricity Supply Company and details of the electricity supply are included in Part C: Particular Requirements. All electricity supply company charges for providing the supply, will be paid by Hampshire County Council direct or through the Main Contract. The Contractor shall submit all necessary test and completion certificates to the electricity supply company at the appropriate time. Copies of certificates submitted shall be handed to the CA/Engineer. All charges made by the supply company for testing, etc, shall be paid by the Contractor. Application forms for connection of supply and installation of metering equipment will be made by the Hampshire County Council.

A2.2 Earthing and equipotential bonding A2.2.1 General The entire installation shall be effectively earthed and bonded in accordance with BS7671 (IEE Regulations for Electrical Installations latest Edition), the electricity supply company‟s requirements and BS7430: Earthing. Wherever possible equipotential bonding conductors shall be concealed within the fabric of the building as flush type installations. However all bonding connections shall be permanently accessible for visual inspection and instrument tests. The incoming services to every building ie. gas water, oil etc, shall be bonded to the main earth terminal within that building. Particular attention shall be paid to installations of the TN-C type, where electricity company requirements may not accept the armouring of sub-main cables between buildings as the CPC. In such cases a separate circuit protective conductor shall be installed. Alternatively for single phase supplies, a 3 core cable can be used with the third core being used as the CPC. Both ends of the core being used as the CPC shall be identified with a green/yellow over-sleeve. All extraneous metalwork liable to introduce a potential, generally earth potential as defined under regulation 415.2, likely to become an extraneous conductive part, then it shall be bonded. If the Contractor is unsure whether an item is an extraneous conductive part he shall use the following test to establish if bonding is necessary. Using a 500v DC insulation tester, measure the insulation resistance between the item and the main earthing terminal. If the resistance value is 0.5 megohm or greater, and inspection confirms that the resistance is unlikely to deteriorate, then the item can reasonably be considered not to be an extraneous conductive part. In the case of rooms containing a fixed bath or shower, swimming pool or sauna regulations 701, 702 and 703 must be satisfied, and all simultaneously accessible metal parts must be bonded. Where applicable all stainless steel or other metal sinks shall be bonded to earth. This shall be achieved by running a 4mm

2 green yellow PVC insulated stranded copper conductor from the earth terminal of an adjacent

outlet to the sink and bonded thereto by means of a brass bolt, nut, earthing clamp and spring washer.


procedures



Where indicated in Part C: Particular Requirements that cable runs within ceiling voids are to be supported on catenary wire the Contractor shall include for bonding the catenary wires.

A2.2.2 Consumer’s Earth Terminal Every installation must be provided with a suitably sized brass main earthing terminal or bar for connecting:- i) the circuit protective conductors, ii) the main bonding conductors, and iii) any other protective conductors, to the earthing conductor for the installation. All bonding conductors shall be identified with durable marker tags engraved gas, water, etc, as appropriate. Provision must be made for means of disconnecting the main earthing terminal from the means of earthing. This provision must: i) be readily accessible, ii) be electrically reliable iii) be mechanically sound, and iv) require the use of a tool for disconnection

A2.2.3 Circuit Protective Conductors The installation is designed to comply with BS7671. The maximum earth fault loop impedances given in Tables 41.2, 41.3, 41.4 and 41.5 of BS7671 shall be complied with and will be verified by testing of the completed installation. All sub-circuits shall be run with a circuit protective conductor which will be of the same cross sectional area as the live conductor unless otherwise stated. All circuit protective conductors other than tapes shall be insulated with green and yellow and PVC. Earth clamps shall comply with BS 951. Every joint in a conduit, connection in a trunking or metal sheath of a cable shall be made so that the current carrying capacity is not less than that of the conduit or sheath itself. Earth couplings shall be connected by means of a copper wire with green and yellow PVC insulation which shall be connected by means of a 2M brass screw secured to the equipment. In lighting switches, socket outlets and all equipment outlets the copper earth wire from the couplings shall pass through a hole in the box and terminate at a 2M screw tapped or bolted into the box. Insulated earth connections shall be provided between the terminal in the box or other enclosure and the terminal on the lighting switch, socket outlet or other equipment.


procedures



Surfaces of all equipment to which earthing connections are made shall be cleaned free from paint and other non-conducting material. The continuity and bonding to earth of the conduit system shall be regularly tested by the Contractor during the progress of the Contract and each section shall be proved prior to being concealed. Where tests by the Engineer show the resistance to be in excess of the standards required by BS7671 (IEE Regulations) and in any instance where the resistance exceeds 0.5 ohms the Contractor shall be liable to dismantle and make good any faulty sections at his own expense and be responsible for meeting any costs incurred by other trades arising from such remedial works. Particular attention shall be paid to ensure earth continuity of the cable armouring, cast iron boxes being provided with armour clamps and moulded plastic boxes with armour clamps, and a copper strip. After completion of the joint, cast iron boxes shall be painted with two coats of bitumastic paint. A Copper earth bonding link shall be fitted between adjacent lengths of trunking which shall be electrically and mechanically continuous. Tape used for the construction of earth clamps shall comprise medium drawn high conductivity copper strip. Joints in copper tape shall be tinned before assembly, riveted with a minimum of two copper rivets and sweated solid.

A2.2.4 Earthing of switchboards The cases of all units comprising a switchboard (distribution board) shall be bonded together electrically, either by means of metal to metal contact, or solid copper bonding conductors. Each incoming and outgoing armoured cable shall have its cable armour clamp, gland plate or earth tap washer bonded to the case of its respective switch. The whole assembled switchboard, including any supporting steel framework, shall then be bonded to an earth terminal or bar as required under section ii.

A2.2.5 Earthing of light columns and bollards The armouring of underground service cables, and the CPC shall be bonded to the steelwork of the column or bollard. At an appropriate position as detailed in the supplementary specification, a earthing lead shall be run from one of the column bond terminations, to a copper rod or plate earth electrode. At the main switchboard or distribution panel position, the circuit shall be connected to a 30mA RCD, and in the case of PME installations, the circuit protective conductor shall be segregated from the main earth terminal.

A2.2.6 Lightning protection earth terminations and electrodes The lightning protection system shall comply with BS EN 62305 'protection against lightning'. Connection to earth electrodes shall be made with suitable purpose made bronze connectors and 19/1.78 mm stranded copper conductors protected against corrosion by wrapping with PVC tape. Buried parts shall be at least 600 mm deep in run in ducts.


procedures



If the earth leads are installed within the building they shall be drawn into non-metallic ducts beneath the ground floor slab to the earth electrode positions. If they are fixed to the external walls or are accessible to the public they shall be protected to a height of 1,500 mm by a non-metallic channel. Each earth electrode shall have a minimum length of 2,400 mm but the actual installed total length shall be as such as to produce a ground resistance of 10 ohms or less. All adjacent underground services having exposed metal in the form of sheathing, armouring or piping shall be bonded directly to the earth termination. An earth termination shall be provided for each down conductor. The lightning protection system shall be bonded to the main consumers earth terminal by means of a suitably sized green/yellow PVC served copper earth bonding cable/tape.

A2.2.7 Additional requirements Where wiring terminates in accessory boxes the circuit protection conductors shall be connected directly to the earth terminal of the accessory and a short lead taken from this terminal of the box. Where trunking and conduit wiring systems are employed the Contractor shall allow for the installation of separate independent copper circuit protective conductors sized in accordance with Table 54.7 of the Regulations. Where MICC cabling is employed the copper sheath shall be used as the CPC. Local supplementary bonding shall be carried out to maintain the equipment zone between hot and cold tap connections, waste water preventions and metal sinks or baths and between all pipes entering an insulated tank or insulated pipe section. Supplementary bonding shall also be carried out between electrical accessory outlets and tap pipework with 2 metres distance. Supplementary bonding wiring between the tap connections where it may be exposed to mechanical damage shall be carried out using 4mm² PVC insulated cable installed directly between points. Where bonding is carried out to adjacent accessories, this shall be made using 2.5mm² PVC insulated cable within flush high impact PVC conduit. The conduit shall terminate adjacent to the pipework in a circular conduit box, where possible concealed from direct view, with a plain lid which shall be drilled and provided with a rubber grommet or bush for the outgoing bonding cable. Additional supplementary bonding may be required to water pipework in order to maintain the equipment zone. Extraneous and exposed conduit parts must have a resistance to the earthing system not in excess of 0.5 ohms or any lower figure by fault, loop impedence tests according to clause 413-02-10 and 411-04-06 of the IEE Regulations. The Contractor must arrange for all such items during the building construction, and where the maximum resistance is exceeded must install the necessary supplementary bonding conductors. All clamps used for the purpose of equipment and supplementary bonding shall be in accordance with BS 951 and the IEE Regulations clause 514-13 and any amendments thereto. All earthing conductors, equipment and supplementary bonding conductors shall be copper cored or high conductivity copper tape. Main equipotential bonding conductors shall have a suitable indelible label affixed to each conductor at main earth bar location to identify which service it is connected to.


procedures



A2.2.8 Clean Earth Where there is a requirement to install clean earth for data and other sensitive equipment, the clean earth must comply fully with BSEN50310 and BS7671.

A2.3 Commissioning and testing A2.3.1 General The Contractor shall provide all labour and necessary instruments and carry out tests of the electrical installation as prescribed in Part 6 of BS7671 (IEE. Regulations). Testing shall be carried out continuously through the whole of the installation process. All instruments must carry a current calibration certificate from an approved body. Where phased hand-over is required under the Conditions of Contract, the Contractor shall carry out all tests and supply installation certificates for each section handed over. On expiration of the defects liability period the whole installation shall be tested again in the presence of the Architect's representative after giving 7 working days notice prior to testing. The Contractor shall provide duplicate copies of all test reports and certificates. A notice of size not less than 100mm x 50mm shall be supplied and fixed on or adjacent to the main switch panel. The notice shall read: Important This installation should be periodically inspected and tested and a report on its condition obtained as prescribed in the Regulations for Electrical Installations issued by the Institution of Electrical Engineers (current Edition).

A2.3.2 Scope of testing The following items where relevant shall be tested in the sequence indicated:

Continuity of protective conductors, including main and supplementary equipotential bonding.

Continuity of ring final circuit conductors.

Insulation resistance.

Site applied insulation.

Protection by separation of circuits.

Protection against direct contact, by a barrier or enclosure provided during erection.

Insulation of non-conducting floor and walls.

Polarity

Earth electrode resistance.

Earth fault loop impedance.

Operation of residual current operated devices. Operation of residual current devices. In the event of any test indicating failure to comply, that test and those preceding, the result of which may have been influenced by the fault indicated, shall be repeated after the fault has been rectified.


procedures



Any other test the Engineer may reasonably instruct the Contractor to make. Such will include reading of voltage drop and current balance between phases at full load conditions at various points in the installation. All tests are to be witnessed by the Engineer where applicable and triplicate test record certificates signed by all test witnesses are to be provided to the Engineer as the work proceeds, upon request, or in any event before the commencement of the defects period. At least 7 working days written notice is to be given to the Engineer confirming the Contractor's intention to perform any test. In addition to installation testing the Contractor is to carry out operation testing of all sections to ensure the electrical works are in a thoroughly complete and operational state to the satisfaction of the Engineer. The works will not be accepted as complete until the appropriate Test and Completion Certificates have been submitted to the Engineer.

A2.3.3 Testing of Equipment which includes Electronic Components Equipment such as Dimmers, Heating Controls, Timers, Cooker, Washing Machines enclosing electronic components shall not be subject to insulation tests when the test voltage may damage the equipment. Such devices must be completely disconnected during testing at both live and neutral connections. Where such devices exist, it should be noted on the test and completion certificate and indication shall be given that these items have not been tested in respect of compliance of Part 6 of BS7671 (IEE Regulations). Further, a suitable notice shall be provided erected at the intake switchgear, worded as follows:- WARNING This installation contains electronic equipment which should be disconnected when insulation tests are made. Record drawings shall clearly indicate the location of electronic equipment.

A2.3.4 Commissioning The Contractor shall employ the manufacturer or their appointed representative to commission and test any

specialist installations e.g. fire detection, nurse call, stand-by generator, security systems as appropriate.

A2.3.5 Re-testing Should the plant or any portion thereof fail under test to give the performance required, then any further test(s) which may be considered necessary by the Engineer will be carried out in a similar manner, but the whole cost of the repeated test(s) shall be borne by the Contractor.

A2.4 Circuit charts and labels


procedures



All plant and apparatus supplied under the contract shall be provided with nameplates showing the manufacturer, manufacturer's reference number and details of the plant. The Contractor may fix his trade plate to the main switch panel only. This shall not exceed 100 mm x 100 mm. The Contractor shall supply and fix on every distribution board, switch fuse, isolator, contactor, motor starter, etc., a white ivorine or plastic laminate label of minimum size 50 mm x 25 mm identifying the particular item in accordance with the schedule provided by the Engineer and indicated on the drawings. Control panels supplied and installed by the Contractor shall also contain white ivorine or laminated plastic labels to identify the purpose of every switch, push button, indicator lamp, etc. All labels shall be fixed by either nut and bolt, screw or rivet. Adhesive or adhesive tape will not be accepted. Where premises are connected to three phase electricity supply every distribution board and controlling switchfuse or isolator shall be provided with a coloured disc indicating to which phase or phases the item is connected. The disc shall be fixed by either self tapping screw or nut and bolt. All apparatus containing live conductors at a voltage between them exceeding 250 volts shall be labelled with a white ivorine or laminated plastic label engraved with red letters. DANGER - 400 VOLTS All electrical accessories, ie socket outlets, light switches etc. shall have a label indicating the circuit designation of the accessory. The Contractor shall supply and fix a circuit chart for every distribution board. The chart shall indicate the circuit way, MCB or fuse rating, phase, cable size and details of the location of the supplied equipment. A sample of the proposed circuit chart shall be submitted to the Engineer for approval before installation. In main switch rooms and where distribution boards are mounted in store rooms or cupboards the circuit lists shall be mounted in a substantial non-inflammable clear plastic envelope and fixed adjacent to the distribution board. Where distribution boards are mounted in corridors or other exposed locations in the circuit list shall be mounted within the board. Circuit lists shall be fixed using nut and bolt, screw or rivet. Adhesive or adhesive tape will not be accepted. Where addition or alterations are carried out to the existing installation, the existing circuit charts shall be replaced and all old charts and markings removed. At practical completion of the contract the Contractor shall supply and install adjacent to the main panel a circuit diagram of connections for the whole main and sub-main distribution system. The diagram shall include the HRC fuse rating or MCCB rating of all switchgear and shall include the theoretical fault level currents as indicated in the contract drawings. The diagram shall be mounted in a glazed hardwood frame securely fixed to the wall.

A2.5 Electric shock notice At each main switchgear/panel board location, including plant control rooms, the Contractor shall provide and fix in a prominent location, a shock treatment card showing the mouth to mouth method of artificial resuscitation, as required by the Health and Safety at Work Act. This shall be contained within a transparent cover or be plastic spray covered by the manufacturer.


procedures



A2.6 Rubber matt At each main switchgear/panel board and sub-panel board location, the Contractor shall provide a suitable rubber matt. The rubber matt shall extend the full width of the switchgear/panel boards.

END OF SECTION A2

Electrical Engineering Specification 2011 Part B: Materials and workmanship

Section B2: Installations


A3 O & M instruction manuals and record drawings A3.1 Introduction The Contractor shall include for the provision of operating and maintenance instruction manuals (including record drawings) to the scope of works and areas as detailed in Part C: Particular Requirements. Operating and maintenance instruction manuals shall be produced to the highest quality and comply with all requirements detailed herein. The following documentation shall be used for guidance in the production of all information relating to the operating and maintenance instruction manuals:- BSRIA Building Applications Guide 1/87.1 – Operating and maintenance manuals for building services installations. 2

nd edition.

BSRIA Building Applications Guide BG 2/2004 – Computer based operating and maintenance manuals: options and procurement guidance. In the event of any conflict between the above documents and the description contained herein, the instructions given below shall take precedent. The Contractor shall also ask for clarification. Two hard copies (one copy for the Client and one copy for the CA) and one electronic copy in PDF format (on CD ROM) of the operating and maintenance instruction manual and record drawings shall be provided. The Client‟s copy shall contain original witnessed testing and commissioning certification. Each page of the Client‟s copy shall be enclosed in durable clear plastic (“poly pockets”) protective wallets. It is a condition of the contract that the operating and maintenance manual is submitted 4 weeks prior to practical completion. Practical completion of the mechanical and/or electrical services will not be granted if the manuals and record drawings have not been received by the CA.

A3.2 Draft manuals Commencement of the manual production process shall take place at the start of the contract. The „in production‟ manual shall be made available for viewing at the request of the Engineer at any point during the contract. Temporary draft manuals and marked up working drawings shall be made available at least one month before handover to enable the Employer‟s staff to familiarise themselves with the installation(s). The temporary manuals should be in the final format with temporary insertions for items which cannot be finalised until the works are completed and tested. The temporary manuals shall be prepared in draft as soon as the installation drawings are in hand and shall take the form of a manual in which is described the layout and functions of the systems, schedule of components comprising each and every item of equipment including manufacturer‟s name, reference and serial number and o&m instructions based on manufacturer‟s standard instructions.




A3.3 Contents A3.3.1 Contractor to note The format of the manual(s) shall be as given below see “Approved Format for the Manuals” and within the main contract preliminaries. The operation and maintenance (O & M) instruction manual and record drawings shall be a comprehensive set of documents that shall enable the correct operation and maintenance of all plant, equipment and systems in the building and shall be project specific and without unnecessary generic information. The manual shall cover all items of plant and equipment and shall include a detailed physical and functional description of the completed installation(s), supplemented with manufacturer's details and maintenance instructions for all components, plant and equipment and all diagrams and data as may be required for the successful operation and maintenance of the plant and equipment. All information shall be project specific. Generic information unless specifically applicable will be rejected.

A3.3.2 Emergency procedure In the front of the manual, before the contents page, an emergency procedure instruction sheet shall be included. This section shall specifically detail what course of action to take in the event of, for example, a burst pipe or flood. It shall give the necessary instruction to a non-technical person to enable them to isolate gas, water and electricity supplies safely. The emergency procedure shall include emergency telephone numbers for the installing contractor, the main contractor (where applicable) and all of the applicable public utilities.

A3.3.3 Index A full index to the contents to enable the reader to find their way around the manual with ease. Where the contents are excessive for a single binder the documents shall be split into the appropriate number of volumes and labelled accordingly.

A3.3.4 Introduction A general description of how to use the manual, including Abbreviations, Schedule of applicable British Standards and codes of Practice.

A3.3.5 Health and safety at work To inform the maintenance workers of precautions to take before undertaking any maintenance, duty of care, statutory regulations, warning & safety notices, issuing of hot work permits and method statements to be made available to the manager of the property describing what effect the maintenance works may have upon the operating of the building and their duration.

A3.3.6 General description




Indicate the scope, purpose and manner of working of each system or apparatus forming part of the works together with data on general design parameters and associated normal operating temperatures, pressures etc., based on the commissioning results.

A3.3.7 Technical data Include full technical description of each and every item of mechanical plant and electrical equipment including the name of manufacturers, type and model, serial number, duty rating (when applicable) and capacity and all relevant manufacturer‟s literature, diagrams, drawings and other details, the information shall be derived from a site inspection together with information obtained from the manufacturer(s).

A3.3.8 Operating procedures and instructions Give clear and comprehensive instructions for the starting up, automatic/manual control and running, normal and emergency shutdown, restarting after a fault or emergency shutdown and fault finding on system malfunction. A detailed description of the scope, purpose and manner of working for each system of automatic controls and/or monitoring instruments together with any sequencing arrangements and alarm/safety interlocks. Following training given to the Client/end user, the Contractor shall provide a summary guide confirming the day tot day instructions for using each of the new or extended installed operating system. The summer guide shall be appended to the respective Client/end user training sign-of sheet(s). Fault finding shall be given in the form of logic diagrams for all systems, plant and equipment and shall indicate the nature of the fault and the recommended action.

A3.3.9 Test and commissioning certificates All inclusive certificates having been witnessed and signed by the Client or his representative shall be included within the operating and maintenance instruction manual. Original documents shall be inserted into the Client‟s copy. Test sheets shall include but not limited to the following:-

Electrical installation test certificates

Fire Alarm design and commissioning certification.

Emergency Lighting design and commissioning certification.

Intruder Alarm commissioning certification.

Data installation commissioning certification.

Lightning Protection certification (where installed)

Lighting Controls commissioning certification (where installed)

Theatre lighting installation test certification (when fitted)

Personal attack system certification (where installed)

External sports lighting testing & commissioning certificate (where fitted)

Any specialist system as specified in Part C: Particular Requirements

A3.3.10 Record drawings A3.3.10.1 General requirements




The Contractor shall, during the course of the installation works keep an accurate record of the works as actually installed. The Contractor shall maintain on site a set of drawings for the purpose of progressive marking up of alterations and variations. These drawings shall form the basis for the record drawings and shall be made available for inspection by the Engineer/Contract Administrator at any time. The Contractor shall produce record drawings for all of the associated works. The record drawings shall be a true and accurate representation of the installed services. Drawings shall show all plant, equipment and associated services routes together with pipe/duct sizes etc. The record drawings shall show any other information, particularly that shown on working drawings, which may be useful in the operation, maintenance of subsequent modification or extension to the installation. The record drawings shall show reference numbers or letters, for the controls plant items of any parts thereof, corresponding to the lettering, numbering or any identification fixed to plant or equipment. All record drawings shall be produced upon common building outlines and structural details agreed by the Contract Administrator. All record drawings shall be produced using AutoCAD and the version to be used shall be agreed at the pre-contract meeting. To assist in the preparation of record drawings, drawing files (.DWG) format files of the base building layouts shall be provided for each drawing. Where applicable, PDF format files of the services design drawings shall also be provided. DWG format files of the services design drawings will only be provided at the discretion of the Engineer. Design drawings will not be accepted as working/record drawings. The information contained upon the record drawings shall be provided such that independent 'layers' are created with selected categories of information on each layer, the selection agreed with the Contract Administrator prior to creation of the C.A.D. files. Record drawings shall be submitted at least four weeks prior to practical completion or completion of section. If the Contractor fails to meet this condition the Engineer will have the right to immediately employ another consultant or contractor to prepare record drawings, and the whole of the costs involved, including any necessary surveying, will be borne by the Contractor. All record drawings shall be to the following scales and on A1 size paper: GA Plans 1:100 or 1:50 (as agreed) Plantrooms 1:20 Details/sections 1:10 or 1:5 The drawings shall be to a minimum scale of 1/100 and shall have a metric scale drawn near the bottom edge corresponding to the scale of the drawing. The drawings shall be clearly marked Record Drawing at the bottom right hand corner. The record drawing in draft form shall be submitted to the Engineer for approval. Record drawings shall accurately identify the location of all access locations (where applicable). The heating drawings shall also identify the location of all manual and/or automatic air vents. Floor plans showing the heating installation shall include a schedule of heat emitters, which gives the size, models, output and manufacturer of each emitter. A schedule of commissioning sets shall also be included on the drawing and shall give each set a reference number, the valve setting and the flow rate.




Two complete sets of paper prints of the record drawings shall be included in each copy of the manual. One set shall be of the original size and the second set shall be reduced:-

A1 reduced to A3 size

A0 reduced to A2 size.

All drawings shall be produced using the latest AutoCAD Release at the time of Tender. Each record drawing shall show the following information:-

Employer's name.

Name of contract and, where appropriate, the zone or floor designation.

Description of drawing, drg number, date and scale.

Name and address of originator. The completed record drawings shall be signed as true record drawings and shall be submitted as part of the operating and maintenance instruction manuals for comment.

A3.4 Additional documents In addition to the provision of hard copies of the completed manual and record drawings, the Contractor shall also provide 1no. copy of the completed manual and record drawings in each of the following formats:

35mm microfilm mounted in a buff coloured aperture card.

35mm Diazo 20 copy of the above mounted in a pink coloured aperture card.

CD ROM (drawings in the latest AutoCAD release .dwg format).

CD ROM PDF (drawings at full original size). All final AutoCAD drawings shall be provided with the latest Architects general arrangement floor plans bound to the drawings. Each aperture card shall have the following information typed on it and positioned as indicated below:

Name of property

Property ref.

Page no. /Drawing no. Document/Drawing Title

The above additional electronic formats shall be provided to the Engineer within four weeks following project

completion.

A3.5 Folders: presentation The contents of the final manual shall be encased in four ring loose leaf presentation folders provided with hard bound covers of an approved colour. All manuals shall be produced using Microsoft Word and the version to be used shall be agreed at the pre-contract meeting. All written instructions within the manual shall be type written with a margin on the left hand side. The manual cover shall be printed with the following information:




"Operating and Maintenance Instruction Manual" Project Name and Service Where more than one volume is required, the cover shall also be printed with the respective volume number. Refer also to the format requirements below. Numbered heavyweight dividers shall be inserted between sections, coloured white and stepped to easily indicate the particular section. Manufacturers literature shall be divided in a similar manner except the dividers shall be alphabetical. Each double sided page or pair of single sided pages shall be inserted into a clear plastic holder/wallet. Each drawing shall be folded to A4 size and inserted into a protective clear plastic holder/wallet with the drawing title and number clearly visible.

A3.6 Approved format for the manuals At the front of the manual, a main contents page shall be provided. Where the contents are excessive for a single binder the documents shall be split into the appropriate number of volumes and labelled accordingly. Sections C shall be completed by the Electrical Services sub-contractor as appropriate. The other section headings are included as reference and shall be completed by the Main Contractor: Section A: Health and Safety File and General Information Section B: Building Fabric Section C: Services Technical information including drawings, methods and materials used for the installation of the services, method statements (if relevant), manufacturers/suppliers/sub-contractors current information, warranties and guarantees, all arranged in the following order. C1 Electrical Building Services

C1.1 Drawings/Scope of Works (Drawings not included elsewhere and General Scope of Works)

C1.2 Electrical Certification (Certificates)

C1.3 Incoming Mains Supply (Incoming supply to distribution board, Standby Generators, Internal Sub-Stations, Loading, Meter Positions)

C1.4 Main and Sub-Main Distribution (High Voltage, Low Voltage, Line Diagrams, Switchgear, Boards, Panels)

C1.5 Lighting (General Lighting, Emergency Lighting, Feature Lighting, External Lighting, Lighting Control System)

C1.6 General Small Power (Sockets, Plugs, Boxes, Fittings)

C1.7 Signage (Maintained by Power) (Internal, External, Emergency, Security, General)

C1.8 Voice Communications/Call Systems (Land Line Telephone System, Cordless System, PA System, Hearing Loop, nurse call/paging systems, staff call systems)

C1.9 Fire Alarm System (Main and Standalone Systems, Panels, Interfaces, Detectors/Sensors, Call Points, Sounders)

C1.10 Security (Door Access Control, Intruder Alarms, CCTV, Disabled Alarms)

C1.11 Data Cabling (WAN, LAN, Cabling, Switches, Hubs, Patch-panels)




C1.12 Lightning Protection

C2 Mechanical Building Services (Heating, Ventilation, Air Conditioning, gas and water services)

C2.1 Drawings/Scope of Works (Drawings not included elsewhere and General Scope of Works, include valve charts and gas line diagram)

C2.2 Testing & Commissioning certificates

C2.3 Gas Service (incoming supply, internal distribution, capacity, meter positions, distribution/pipework)

C2.4 Mains Water Service (incoming supply, capacity, meter positions, distribution/pipework)

C2.5 Heating (boilers, ground & air source heating, flues, pumps, valve sets, pressurisation units, F&E tanks, heat emitters, distribution/pipework)

C2.6 Hot Water (water heaters, calorifiers, thermostatic mixing valves, distribution/pipework)

C2.7 Cold Water Supplies (cold water, drinking water, tanks, water conditioners & softeners, frost protection, booster sets distribution/pipework)

C2.8 Ventilation (air handling units, supply fans, extract fans, distribution/ductwork, fire dampers)

C2.9 Air Conditioning & Cooling Systems (single and split DX systems, fan coil units, condensers, chilled water systems, air cooled water chillers, distribution/pipework)

C2.10 Automatic Control Systems/Alarms (controls panels, BMS, fire alarm interface, gas leakage alarm, wiring diagrams, field controls)

C2.11 Thermal Insulation

C3 Sanitary ware and Drainage (above and below ground)

C3.1 Drawings/Scope of Works (Drawings not included elsewhere and General Scope of Works)

C3.2 Foul Drainage (Capacity, Distribution, Access Points, Grease Traps, Manholes, Pumping Chambers/Station, Treatment Plants)

C3.3 Surface Water Drainage (Capacity, Distribution, Manholes, Petrol Interceptors, Storage tanks/chambers, Gutters, Down pipes)

C3.4 Sanitary Appliances and Fittings (Basins, Bowls, Sinks, Urinals, Taps)

C4 Mechanical Equipment C5 Fire services and safety equipment

C5.1 Drawings (Drawings not included elsewhere)

C5.2 Fire Services and Safety Equipment Certification (Certificates)

C5.3 Fire Alarm System to be included in section C1.19

C5.4 Fire Water Mains (Incoming Hydrant Main, Incoming Sprinkler Main)

C5.5 Fire Risers into/within Building (Wet Risers, Dry Risers)

C5.6 Sprinkler System (Sprinkler Tanks, Pumps, Distribution, Sensor/Detector Types, Sprinkler Heads)

C5.7 Fire Protection (Intumescent Paint, Sprayed Coatings, Board, Tiles)

C5.8 Smoke Extract Systems (Passive and Forced Systems)

C5.9 Fire Shutter/Curtains/Barriers (Fixed and Operable)

C5.10 Fire Extinguishers/Hoses (Location and Types)

C5.11 Running Line, Anchor/Restraint Points (Location and Types)

C5.12 Personal Protection Equipment (Harness/Lanyards)

C5.13 Lightning Protection System (Distribution, Masts, Tapes, Earth Points/Chambers)




Section D: Site Works Section E: Archive Information (if available)

A3.7 Final documents The Contractor shall provide fully detailed operating and maintenance instruction manuals and record drawings, as described above prior to the issue of the Practical Completion Certificate, If the documentation is not completed to the full satisfaction of the Engineer the Employer shall be entitled to have the manuals prepared by another firm or company and recover the full costs incurred from the Contractor. No claim for payment will be entertained for manuals partially completed.

A3.8 Building Log Book In order to satisfy the requirements of The Building Regulations Approved Document Part L2 Section 3, the Contractor shall be fully responsible for the preparation, production and submission of all information required to fulfil the contract requirements for the production of a Building Log Book. The Contractor shall be responsible for obtaining and coordinating the relevant information in conjunction with the Engineer and Contract Administrator. Failure to produce the required format for the Log Book at the appropriate time may result in Building Regulations approval not being granted. It is therefore imperative that due allowance is made within the tender for this element of work. The information to be provided by the Contractor shall be in accordance with the guidelines set down in the by CIBSE Technical Memorandum TM31. The Building Log Book is a single copy of a separately produced document and should not be confused with the any other document. The CIBSE approved format (TM31), The Building Log Book Toolkit should be used as the basis to present the required information. As a minimum, the format of the Building Log Book will be as follows:

Proforma sheet for Log Book Updates & Annual Reviews

Introduction, Purpose & Key Responsibilities

Links to other Key Documents

Statement of Calculation Results and Assessment for Carbon Emissions

Conceptual Design Overview

Key Operational & Energy Saving Do‟s & Don‟ts Schedule to Optimise the Design Philosophy

Energy Metering, Monitoring, Targeting Strategy (using TM39). Including Metering Schedule & Schematic.

Summary of overall fossil fuel consumption & CO2 against simple benchmarks. Due to its nature, much of the required information will be required to be produced by the design Engineer during the design process and implemented as part of the scheme. The Contractor shall be required to collate all relevant information.




Information submitted by the Contractor shall be submitted in Draft format 5 weeks prior to practical completion to provide the Contract Administrator sufficient time to review and return comments. The final information shall be produced 2 weeks prior to Handover to enable sufficient time for the collation/production of the completed Building Log Book.

END OF SECTION