Title: MEP ON SITEPresented by:

• Vimal • AUCKBURALLY Irfaan (ID: 0811723)• SEENUNDUN Nitin D. (ID: 0700729)• NUNDOOSING Reaz (ID: 07007..)• JATOO Bhisen Vicky (ID 0715994)

Vimal to complete intro part

INTRODUCTION

MEP ON SITEPORT LOUIS RING ROAD (PHASE1)FROM MONTEBELLO TO GUIBIES

(GORGES BRIDGE)Main contractor: Rehm Grinaker

Done by: Aucburally Irfaan

CENTRAL ELECTRICITY BOARD CENTRAL WATER AUTHORITY MTML, EMTEL, AND MAURITIUS

TELECOM

SERVICE PROVIDER ON SITE

Mainly two types of network (HV & LV) Single phase distribution Incoming voltage and current is 230V / 63A Pole mounted cabling to metering cubicle

via consumer unit. Electricity is distributed through the entire

site via 3C x 4mm2 cables. Street lightning also is provided and on site

lightning.

ELECTRICAL SERVICES

A consumer unit is a box of fuses or breakers, usually arranged in a single row.

ELECTRICAL SERVICES

ELECTRICAL SERVICES Lightning system used for underpass Equa 250W(tubular high pressure sodium

ST ) Six 50 KVA pole mounted CEB step down

transformers being used to provide power for the entire ring road.

MTML : use for wireless telephony service Emtel : wireless broadband Mauritius telecom : fax service

Telecommunication services

Oulet pipe 160mm Hdpe from reservoir to feed site. (CWA)

Plumbing : Distribution of water on site through 9 points via 25mm Hdpe (high density polyethylene) pipe.

Two tanks 9000 litres each to ensure continuous provision of water on site using a pump.

Waste disposal in artificial septic tanks. Carbon Dioxide (CO2) extinguishers , they are

used for class B and class C fires.

Public health

Class B fires involve flammable or combustible liquids such as gasoline, kerosene, grease and oil. The numerical rating for class B extinguishers indicates the approximate number of square feet of fire it can extinguish.

Class C fires involve electrical equipment, such as appliances, wiring, circuit breakers and outlets. The C classification means the extinguishing agent is non-conductive.

Public heath (fire extinguishers)

Air conditioning using split systems The split air conditioning comprises of two

parts: the outdoor unit and the indoor unit. The outdoor unit, fitted outside the room, houses components like the compressor, condenser and expansion valve. The indoor unit comprises the evaporator or cooling coil and the cooling fan.

Water pump : Distribution pump for water supply on site, 8 bars delivering pressure.

Mechanical services

FILLING STATION AT CALEBASSES

Electrical Works and Services Public Health System Mechanical Works and Services

MEP ON SITE

a) Underground services Identify any existing services Relocate or cancel the service Carter for new services

b) Design services Electrical engineer involved Design to be implemented during construction Implementation effected through construction

drawings and typical drawings

Electrical Works and Services

c) Construction Phase Excavation for trench for different diameters of

pipes (use of typical drawings) Bedding, laying of cable/duct, proper backfilling

and warning tapes Double or Tri-Phase connections (Low voltage

cables/high voltage cables) Low voltage room includes main distribution board,

cabling, conduits, electrical switches and appliances, as per schematic layout

Smoke detectors Fire Alarm System

Electrical Works and Services

Socket Layout

Lighting and Fire Alarm Layout

Toilets (WC) Showers Air vent pipes Sewer pipes and manholes Fire Extinguishers, Hoses and Sand Buckets Sprinklers Plumbing works Water pipelines and taps Washcar Bay with soakaway

Public Health System

Pipeworks within the building space

Windows, Doors and Openings – Ventilation Air Conditioning: Local Systems using split

units Water Pumps Pressure tests undertaken before usage Standby Generator in case of power loss

Mechanical Services

Office Block Plan

Lim Fat Villas at Curepipe

MEP ON SITE

Air conditioning may be required in buildings which have a high heat gain and as a result a high internal temperature.

The heat gain may be from solar radiation and/or internal gains such as people, lights anIf air conditioning is the only answer to adequate comfort in a building then the main choice of system can be considered.

Full comfort air conditioning can be used in summer to provide cool air (approx. 13oC to 18oC) in summer and warm air (approx. 28oC to 36oC) in winter.

Also the air is cleaned by filters, dehumidified to remove moisture or humidified to add moisture.

.

Air Conditioning

The split air conditioner comprises of two parts: the outdoor unit and the indoor unit. The outdoor unit, fitted outside the room, houses components like the compressor, condenser and expansion valve. The indoor unit comprises the evaporator or cooling coil and the cooling fan. For this unit you don’t have to make any slot in the wall of the room. Further, the present day split units have aesthetic looks and add to the beauty of the room. The split air conditioner can be used to cool one or two rooms.

Split Systems

ELECTRICAL

Most domestic premises receive a single-phase supply of electricity from an area electricity board at a rating of 240 volts and frequency of 50 hertz.

The area electricity board's cable, from which the domestic supply is taken, consists of four lines, three lines each carrying a 240 volt supply and the fourth is the common return line or neutral which is connected to earth at the transformer or substation as a safety precaution should a fault occur on the electrical appliance. Each line or phase is tapped in turn together with the neutral to provide the single-phase 240 V supply.

ELECTRICITY BOARD INTAKE  The supply or intake cable may enter the building through an underground duct or

via an overhead supply. An underground supply is preferred since all of the electrical service is hidden. The supply cable is terminated in the area board’s fused sealing chamber which should

be sited in a dry accessible position. From the sealing chamber the supply passes through the meter, which records the electricity consumed in units of kilowatt/hours, to the consumer unit which has a switch controlling the supply to the circuit breakers or circuit fuses.

These fuses are a protection against excess current or overload of the circuit since when overloading occurs, the fuse or circuit breaker will isolate the circuit from the source of the problem.

Domestic Electrical Installation

Public health services focus on providing safe, healthy, hygienic, efficient and sustainable systems that are sensitive to the local environment. Design skills and services include:

Water supply, sanitation and water recycling. Sustainable Drainage Systems (SuDS). Recreational water systems. Waste management systems and strategies. Infrastructure, from sewerage systems to land

drainage

PUBLIC HEALTH

Drainage schemes for buildings are necessary to remove waste water, foul water and surface water.

Waste water and foul water join together and are disposed in a septic tank or to a foul water sewer pipe .

The foul water sewer discharges the sewerage to a treatment plant where it is settled, filtered and chemically treated.

Surface water can be discharged into a soakaway (or Storm Water) drain in urban areas. The storm water drain discharges water safely to a river or lake.

A separate system of drainage is used where foul water and surface water are separated at source and piped individually to a surface water drain or foul water drain

Drainage System

All this work is monitored and control by the service engineer.

The main role of Services engineers in construction projects is to supervise the specialize workers in handling all the Services works considering the safety and quality requirements. The Service engineer in the construction site also reads and studies the M&E plans (usually done by M&E design engineers) and implement it in the site and sometimes do necessary actions whether to correct or to improve the design. They coordinate with other M&E engineers in the implementation of the Services system design and also with other engineers of different fields, such as civil and mechanical engineers, to make the construction job easier.

Conclusion