► ElectricalElectrical: qualification required, standards and electrical : qualification required, standards and electrical safety code, emergency stops, secured powering systems.safety code, emergency stops, secured powering systems.

► FireFire: standards and safety codes, detection and alarms, fire : standards and safety codes, detection and alarms, fire resistant material, smoke extraction, safe pressurized areas, resistant material, smoke extraction, safe pressurized areas, emergency exits, fire fighting systems. emergency exits, fire fighting systems.

► ChemicalChemical: classification, labeling and medical examinations : classification, labeling and medical examinations of personnel handling chemical material - rules concerning of personnel handling chemical material - rules concerning purchase, storage, transport, use and disposal.purchase, storage, transport, use and disposal.

► Flammable gasFlammable gas: classification, recommended practices, : classification, recommended practices, design and operation of systems.design and operation of systems.

► Cryogenic fluidsCryogenic fluids: safety instructions for storage and set to : safety instructions for storage and set to work, leak detection and oxygen deficiency alarms.work, leak detection and oxygen deficiency alarms.

► Ionization and radioactive materialsIonization and radioactive materials: classification of : classification of radiation areas and dose limits, guidelines, monitoring radiation areas and dose limits, guidelines, monitoring (individual, material, areas and sites), radiation alarms, (individual, material, areas and sites), radiation alarms, handling of material, traceability, disposal …handling of material, traceability, disposal …

► Non ionizing radiationNon ionizing radiation (laser, magnetic fields, X-ray …): (laser, magnetic fields, X-ray …): classification, precautions for use, mark out and interlock.classification, precautions for use, mark out and interlock.

Joint ILC/CLIC Safety Joint ILC/CLIC Safety document document

SAFETY ORGANISATION AT SAFETY ORGANISATION AT CERNCERN

►The Director General is assisted in his The Director General is assisted in his task by several committees such as:task by several committees such as: the Safety Policy Committee (SAPOCO)the Safety Policy Committee (SAPOCO) the Departmental Safety Officers' Committee the Departmental Safety Officers' Committee

(DSOC) (DSOC) the Radiation Safety Officers' Committee (RSOC)the Radiation Safety Officers' Committee (RSOC) the Flammable Gas Safety Committee (FGSOC)the Flammable Gas Safety Committee (FGSOC) the Cryogenic Safety Committee (CSOC).the Cryogenic Safety Committee (CSOC).

SAPOCOSAPOCO

► The Safety Policy Committee (SAPOCO) is an The Safety Policy Committee (SAPOCO) is an advisory body to the Director-General for advisory body to the Director-General for defining Safety policy and for all other defining Safety policy and for all other important matters which may arise in this field important matters which may arise in this field at CERN.at CERN. It has a general right of initiative by which it may It has a general right of initiative by which it may

suggest improvements in the field of health, safety suggest improvements in the field of health, safety and environmental protection at CERN, wherever it and environmental protection at CERN, wherever it judges this to be necessary,judges this to be necessary,

It makes recommendations for approval by the It makes recommendations for approval by the Director-General of the present document and of Director-General of the present document and of the CERN Safety Codes,the CERN Safety Codes,

It approves CERN Safety Instructions.It approves CERN Safety Instructions.

ELECTRICAL SAFETY CODEELECTRICAL SAFETY CODE C1C1 ContentsContents

► 11 Legal basisLegal basis► 22 AimsAims► 33 ScopeScope► 44 General definitionsGeneral definitions► 55 Regulations and standards for electrical equipment and Regulations and standards for electrical equipment and

installationsinstallations► 66 Personnel qualificationsPersonnel qualifications► 77 Protection of personnelProtection of personnel► 88 Choice of equipmentChoice of equipment► 99 Operating instructionsOperating instructions► 1010 Inspection of electrical equipment and installations and Inspection of electrical equipment and installations and

of their of their operating conditionsoperating conditions► 1111 Surveillance of the application of this codeSurveillance of the application of this code► 1212 Entry into forceEntry into force

► 11 LEGAL BASISLEGAL BASISThis code is based on the document which defines safety policy This code is based on the document which defines safety policy at CERN (SAPOCO/42). It forms part of the CERN safety at CERN (SAPOCO/42). It forms part of the CERN safety regulations and, as such, part of the Staff Regulations.regulations and, as such, part of the Staff Regulations.

► 22 AIMSAIMSThe aim of this code is to establish regulations for the The aim of this code is to establish regulations for the construction, installation and use of electrical equipment which construction, installation and use of electrical equipment which guarantee the protection of personnel and property.guarantee the protection of personnel and property.It will be supplemented by Safety Instructions and Safety It will be supplemented by Safety Instructions and Safety Notes.*Notes.*

► 33 SCOPE SCOPE This code applies:This code applies: to all persons under the Director-General's authority (including to all persons under the Director-General's authority (including

contractors and experimental groups, as stated in document contractors and experimental groups, as stated in document SAPOCO/42.SAPOCO/42.

on all CERN sites and to all electrical equipment and installations on all CERN sites and to all electrical equipment and installations which are CERN's responsibility.which are CERN's responsibility.

► 44 GENERAL DEFINITIONSGENERAL DEFINITIONSElectrical equipmentElectrical equipment: any item used for such purposes as : any item used for such purposes as generation, conversion, distribution or utilization of electrical generation, conversion, distribution or utilization of electrical energy, e.g. machines, transformers, apparatus, measuring energy, e.g. machines, transformers, apparatus, measuring instruments, protective devices, wiring material, appliances and instruments, protective devices, wiring material, appliances and electronic equipment.electronic equipment.Electrical installationElectrical installation: any combination of interconnected : any combination of interconnected electrical equipment within a given space or location.electrical equipment within a given space or location.Non-standard electrical equipment or installation:Non-standard electrical equipment or installation: electrical electrical equipment or installations not covered by a specific national or equipment or installations not covered by a specific national or international standard. international standard.

► 55 REGULATIONS AND STANDARDS FOR ELECTRICAL REGULATIONS AND STANDARDS FOR ELECTRICAL EQUIPMENT AND INSTALLATIONSEQUIPMENT AND INSTALLATIONS

The most recent IEC or CENELEC* standards and The most recent IEC or CENELEC* standards and recommendations constitute the basic regulations governing recommendations constitute the basic regulations governing electrical equipment and installations at CERN. electrical equipment and installations at CERN. Electrical equipmentElectrical equipment: this must be manufactured and tested in : this must be manufactured and tested in accordance with IEC publications, supplemented if necessary accordance with IEC publications, supplemented if necessary by the standards of the country of origin.by the standards of the country of origin.Electrical installationsElectrical installations: these must comply with IEC : these must comply with IEC publications, especially publication No 364 (Electrical publications, especially publication No 364 (Electrical installations of buildings), supplemented by other regulations, installations of buildings), supplemented by other regulations, listed in the Safety Instruction N°24 "Regulations applicable to listed in the Safety Instruction N°24 "Regulations applicable to electrical installations".electrical installations".Non-standard electrical equipment and installationsNon-standard electrical equipment and installations: as far as : as far as possible, these should be developed, manufactured and possible, these should be developed, manufactured and tested according to the same rules governing standard tested according to the same rules governing standard equipment and installations using a similar technology. In all equipment and installations using a similar technology. In all cases, the provisions of the section "Protection of Personnel" cases, the provisions of the section "Protection of Personnel" must be respected, in order to achieve a degree of safety must be respected, in order to achieve a degree of safety equivalent to that of standard equipment or installations (cf equivalent to that of standard equipment or installations (cf Annex).Annex).

*IEC = International Electronical Commission, *IEC = International Electronical Commission, CENELEC = European Committee for Electrotechnical StandardsCENELEC = European Committee for Electrotechnical Standards

ELECTRICAL SAFETY ELECTRICAL SAFETY INSTRUCTION IN FORCE AT INSTRUCTION IN FORCE AT

CERNCERN► IS 24IS 24 Regulations applicable to electrical installations (1990)Regulations applicable to electrical installations (1990)

EDMS # 335746EDMS # 335746► IS 5IS 5 Emergency stops (2001)Emergency stops (2001)

EDMS # 335742EDMS # 335742► IS 23IS 23 Criteria and standard test methods for the selection of Criteria and standard test methods for the selection of

electric cables, wires and insulated parts electric cables, wires and insulated parts with respect to with respect to fire safety and radiation fire safety and radiation resistance (2005)resistance (2005)

EDMS # 335745EDMS # 335745► Code A3Code A3 Colour Code (under revision)Colour Code (under revision)

► IS 28IS 28 Dangers due to electricity (1986)Dangers due to electricity (1986)EDMS # 335796EDMS # 335796

► IS 26IS 26 Electrical test bays (1986)Electrical test bays (1986)

► IS 33IS 33 Definition of voltages and insulation levels (1986)Definition of voltages and insulation levels (1986)

► IS 27IS 27 Electronics laboratories (1985)Electronics laboratories (1985)