HD 637 S1:1999/corrigendum:2005

Superseded

Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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POWER INSTALLATIONS EXCEEDING 1 KV A.C.

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Superseded date: 01-11-2010

Language(s):

Published date: 12-01-2013

Publisher: European Committee for Standards - Electrical

Pure ENs are not available for sale, please purchase a suitable national adoption

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FOREWORD
1 SCOPE AND NORMATIVE REFERENCES
2 DEFINITIONS
   2.1 GENERAL DEFINITIONS
   2.2 INSTALLATIONS
   2.3 TYPES OF INSTALLATIONS
   2.4 SAFETY MEASURES AGAINST ELECTRIC SHOCK
   2.5 CLEARANCES
   2.6 CONTROL AND PROTECTION
   2.7 EARTHING
3 FUNDAMENTAL REQUIREMENTS
   3.1 ELECTRICAL REQUIREMENTS
        3.1.1 Methods of neutral earthing
        3.1.2 Voltage classification
        3.1.3 Current in normal operation
        3.1.4 Short circuit current
        3.1.5 Rated frequency
        3.1.6 Corona
   3.2 MECHANICAL REQUIREMENTS
        3.2.1 Tension load
        3.2.2 Erection load
        3.2.3 Ice load
        3.2.4 Wind load
        3.2.5 Switching forces
        3.2.6 Short-circuit forces
        3.2.7 Loss of conductor tension
        3.2.8 Vibration
        3.2.9 Dimensioning of supporting structures
   3.3 CLIMATIC AND ENVIRONMENTAL CONDITIONS
        3.3.1 Temperature
        3.3.2 Altitude and air pressure
        3.3.3 Humidity
        3.3.4 Precipitation
        3.3.5 Pollution
        3.3.6 Solar radiation
   3.4 SPECIAL REQUIREMENTS
        3.4.1 Installations at high altitudes
        3.4.2 Effects of small animals and microorganisms
        3.4.3 Noise level
        3.4.4 Effects of earthquakes
4 INSULATION
   4.1 SELECTION OF INSULATION LEVEL
   4.2 VERIFICATION OF WITHSTAND VALUES
   4.3 MINIMUM CLEARANCES OF LIVE PARTS
   4.4 MINIMUM CLEARANCES BETWEEN PARTS UNDER SPECIAL
        CONDITIONS
   4.5 TESTED CONNECTION ZONES
5 EQUIPMENT
   5.1 COMMON RULES
        5.1.1 General
        5.1.2 Installation
   5.2 SPECIFIC REQUIREMENTS
        5.2.1 Circuit-breakers, switch-disconnectors, fuses,
               fuse-switch disconnectors, contactors,
               disconnectors and earthing switches
        5.2.2 Power transformers and reactors
        5.2.3 Gas insulated metal-enclosed switchgear (GIS),
               metal-enclosed switchgear, insulation-enclosed
               switchgear and other prefabricated type-tested
               switchgear assemblies
        5.2.4 Instrument transformers
        5.2.5 Surge arresters
        5.2.6 Capacitors
        5.2.7 Line traps
        5.2.8 Insulators
        5.2.9 Insulated cables
        5.2.10 Conductors and accessories
        5.2.11 Rotating machines
        5.2.12 Static converters
6 INSTALLATIONS
   6.1 GENERAL REQUIREMENTS
        6.1.1 Circuit arrangement
        6.1.2 Documentation
        6.1.3 Transport routes
        6.1.4 Aisles and access areas
        6.1.5 Lighting
        6.1.6 Operational safety
        6.1.7 Labelling
   6.2 OPEN-TYPE OUTDOOR INSTALLATIONS
        6.2.1 Barrier clearances
        6.2.2 Obstacle clearances
        6.2.3 Boundary clearances
        6.2.4 Minimum height over access area
        6.2.5 Clearances to buildings
        6.2.6 External fences and access doors
   6.3 OPEN-TYPE INDOOR INSTALLATIONS
   6.4 INSTALLATION OF FACTORY-BUILT TYPE-TESTED
        ENCLOSED SWITCHGEAR
        6.4.1 General
        6.4.2 Additional requirements for gas-insulated
               metal-enclosed switchgear
   6.5 REQUIREMENTS FOR BUILDINGS
        6.5.1 Introduction
        6.5.2 Structural provisions
        6.5.3 Rooms for switchgear
        6.5.4 Service areas
        6.5.5 Doors
        6.5.6 Draining of dielectric fluids
        6.5.7 Air conditioning and ventilation
        6.5.8 Building which require special consideration
   6.6 HIGH-VOLTAGE/LOW-VOLTAGE PREFABRICATED SUBSTATIONS
   6.7 MAST POLE AND TOWER INSTALLATIONS
7 SAFETY MEASURES
   7.1 PROTECTION AGAINST DIRECT CONTACT
        7.1.1 General
        7.1.2 Measures for protection against direct
               contact
        7.1.3 Protection requirements
   7.2 MEANS TO PROTECT PERSONS IN CASE OF INDIRECT CURRENT
   7.3 MEANS TO PROTECT PERSONS WORKING ON ELECTRICAL
        INSTALLATIONS
        7.3.1 Equipment for isolating installations or
               apparatus
        7.3.2 Devices to prevent reclosing of isolating
               devices
        7.3.3 Devices for determining the de-energized
               state
        7.3.4 Devices for earthing and short-circuiting
        7.3.5 Equipment acting as barriers against
               adjacent live parts
        7.3.6 Storage of accident prevention equipment
   7.4 PROTECTION FROM DANGERS RESULTING FROM ARC FAULT
   7.5 PROTECTION AGAINST DIRECT LIGHTNING STROKES
   7.6 PROTECTION AGAINST FIRE
        7.6.1 General
        7.6.2 Transformers, reactors
        7.6.3 Cables and flexible cords
        7.6.4 Other equipment with flammable liquid
   7.7 PROTECTION AGAINST LEAKAGE OF INSULATING LIQUID AND
        SF[6]
        7.7.1 Insulating liquid leakage and subsoil water
               protection
        7.7.2 SF[6]-leakage (new SF[6])
        7.7.3 Failure with loss of SF[6] and its
               decomposition products
   7.8 IDENTIFICATION AND MARKING
        7.8.1 General
        7.8.2 Information plates and warning plates
        7.8.3 Electrical hazard warning
        7.8.4 Installations with incorporated capacitors
        7.8.5 Emergency signs for emergency exits
8 AUXILIARY INSTALLATIONS AND CONTROL SYSTEMS
   8.1 MONITORING AND CONTROL SYSTEMS
   8.2 DC AND AC SUPPLY CIRCUITS
        8.2.1 AC supply
        8.2.2 DC supply
   8.3 COMPRESSED AIR SYSTEMS
   8.4 SF[6] GAS HANDLING PLANTS
   8.5 BASIC RULES FOR ELECTO-MAGNETIC COMPATIBILITY OF
        CONTROL SYSTEMS
        8.5.1 Electrical noise sources in high voltage
               installations
        8.5.2 Measures to be taken to reduce the effects
               of high frequency interference
        8.5.3 Measures to be taken to reduce the effects
               of low frequency interference
        8.5.4 Measures related to the selection of
               equipment
        8.5.5 Other possible measures to reduce the
               effects of interference
9 EARTHING SYSTEMS
   9.1 PURPOSE
   9.2 DIMENSIONING OF EARTHING SYSTEMS AT POWER FREQUENCY
        9.2.1 General
        9.2.2 Dimensioning with respect to corrosion and
               mechanical strength
        9.2.3 Dimensioning with respect to thermal strength
        9.2.4 Dimensioning with regard to touch and step
               voltages
   9.3 CONSTRUCTION OF EARTHING SYSTEMS
        9.3.1 Installation of earth electrodes and
               earthing conductors
        9.3.2 Measures to be taken to reduce the effects
               of high frequency interference
        9.3.3 Transferred potentials
        9.3.4 Measures for earthing on equipment and
               installations
   9.4 COMMON EARTHING SYSTEM FOR HIGH VOLTAGE AND LOW
        VOLTAGE SYSTEMS
        9.4.1 Conditions for a common earthing system
        9.4.2 Supply of low voltage installations inside
               the area of a high voltage earthing system
        9.4.3 Supply of low voltage installations outside
               the area of a high voltage earthing system
        9.4.4 Separated earthing systems
   9.5 EARTHING MEASURES AGAINST LIGHTNING EFFECTS
   9.6 MEASUREMENTS FOR AND ON EARTHING SYSTEMS
   9.7 SITE INSPECTION AND DOCUMENTATION OF EARTHING SYSTEMS
   9.8 GENERAL COMMENTS ON CHECKING AND SUPERVISION OF
        EARTHING SYSTEMS
        9.8.1 Checking by inspection
        9.8.2 Checking by measurement or calculation
10 INSPECTION AND TESTING ON SITE BEFORE TAKING OVER
ANNEX A (NORMATIVE) TYPE AND MINIMUM DIMENSIONS OF EARTH
        ELECTRODE MATERIALS ENSURING MECHANICAL STRENGTH
        AND CORROSION RESISTANCE
ANNEX B (NORMATIVE) CURRENT RATING CALCULATION OF EARTHING
        CONDUCTORS AND EARTH ELECTRODES
ANNEX C (NORMATIVE) TOUCH VOLTAGE AND BODY CURRENT
   C.1 EQUIVALENCE BETWEEN TOUCH VOLTAGE AND BODY CURRENT
   C.2 TAKING INTO ACCOUNT ADDITIONAL RESISTANCES
ANNEX D (NORMATIVE) DESCRIPTION OF THE RECOGNIZED SPECIFIED
        MEASURES M
ANNEX E (NORMATIVE) MEASURES ON EARTHING SYSTEMS TO REDUCE
        THE EFFECTS OF HIGH FREQUENCY INTERFERENCE
ANNEX F (NORMATIVE) DETAILED MEASURES FOR EARTHING OF
        EQUIPMENT AND INSTALLATIONS
   F.1 FENCES AROUND SUBSTATION INSTALLATIONS
   F.2 PIPES
   F.3 TRACTION RAILS
   F.4 POLE MOUNTED TRANSFORMING AND/OR SWITCHING
        INSTALLATIONS
   F.5 SECONDARY CIRCUITS OF INSTRUMENT TRANSFORMERS
ANNEX G (NORMATIVE) MEASURING TOUCH VOLTAGES
ANNEX H (INFORMATIVE) METHODS OF PROTECTION AGAINST DIRECT
        LIGHTNING STROKES
   H.1 SHIELD WIRES
   H.2 LIGHTNING RODS
ANNEX J (INFORMATIVE) REDUCTION FACTORS RELATED TO EARTH
        WIRES OF OVERHEAD LINES AND METAL SHEATHS OF
        UNDERGROUND CABLES
   J.1 GENERAL
   J.2 TYPICAL VALUES OF REDUCTION FACTORS OF OVERHEAD
        LINES AND CABLES (50 Hz)
ANNEX K (INFORMATIVE) BASIS FOR THE DESIGN OF EARTHING
        SYSTEMS
   K.1 SOIL RESISTIVITY
   K.2 RESISTANCE TO EARTH
ANNEX L (INFORMATIVE) INSTALLING THE EARTH ELECTRODES
        AND EARTHING CONDUCTORS
   L.1 INSTALLATION OF EARTH ELECTRODES
        L.1.1 Horizontal earth electrodes
        L.1.2 Vertical or inclined driven rods
        L.1.3 Jointing the earth electrodes
   L.2 INSTALLATION OF EARTHING CONDUCTORS
        L.2.1 Installing the earthing conductors
        L.2.2 Jointing the earthing conductors
ANNEX M (INFORMATIVE) APPROXIMATE FORMULAE FOR SIMPLE
        EARTHING SYSTEMS: APPROPRIATE DISTANCES TO AVOID
        DANGEROUS VOLTAGES
ANNEX N (INFORMATIVE) MEASUREMENTS FOR AND ON EARTHING
        SYSTEMS
   N.1 MEASUREMENT OF SOIL RESISTIVITIES
   N.2 MEASUREMENT OF RESISTANCES TO EARTH AND IMPEDANCES
        TO EARTH
   N.3 DETERMINATION OF THE EARTH POTENTIAL RISE
   N.4 ELIMINATION OF INTERFERENCE AND DISTURBANCE
        VOLTAGES FOR EARTHING MEASUREMENTS
ANNEX P (INFORMATIVE) DETAILS ON SITE INSPECTION AND
        DOCUMENTATION OF EARTHING SYSTEMS
ANNEX Q (INFORMATIVE) EXAMPLES FOR CHECKING THE CORRECT
        DESIGN CONCERNING THE PERMISSIBLE TOUCH VOLTAGE
ANNEX R (INFORMATIVE) THE USE OF REINFORCING BARS IN
        CONCRETE FOR EARTHING PURPOSE
ANNEX S (INFORMATIVE) A-DEVIATIONS
A-DEVIATIONS FOR BELGIUM
A-DEVIATIONS FOR SWITZERLAND
A-DEVIATIONS FOR SPAIN
A-DEVIATIONS FOR FINLAND
A-DEVIATIONS FOR FRANCE
A-DEVIATIONS FOR UNITED KINGDOM
A-DEVIATIONS FOR ITALY
A-DEVIATIONS FOR SWEDEN
ANNEX T (NORMATIVE) SPECIAL NATIONAL CONDITIONS AND
        NATIONAL PROVISIONS (PART OF NATIONAL STANDARDS,
        SPECIFICATIONS OR PRACTICES)
SPECIAL NATIONAL CONDITIONS AND NATIONAL PROVISIONS FOR
CZECH REPUBLIC
SPECIAL NATIONAL CONDITIONS AND NATIONAL PROVISIONS FOR
DENMARK
SPECIAL NATIONAL CONDITIONS AND NATIONAL PROVISIONS FOR
FINLAND
SPECIAL NATIONAL CONDITIONS AND NATIONAL PROVISIONS FOR
FRANCE
SPECIAL NATIONAL CONDITIONS AND NATIONAL PROVISIONS FOR
UNITED KINGDOM
SPECIAL NATIONAL CONDITIONS AND NATIONAL PROVISIONS FOR
ITALY
SPECIAL NATIONAL CONDITIONS AND NATIONAL PROVISIONS FOR
THE NETHERLANDS
SPECIAL NATIONAL CONDITIONS AND NATIONAL PROVISIONS FOR
NORWAY
SPECIAL NATIONAL CONDITIONS AND NATIONAL PROVISIONS FOR
SWEDEN
ANNEX U (INFORMATIVE) BIBLIOGRAPHY

Abstract - (Show below) - (Hide below)

Provides the requirements for the design and erection of electrical installations, in systems with nominal voltage above 1 kv a.c., so as to provide safety and proper functioning for the use intended.

General Product Information - (Show below) - (Hide below)

Committee	TC 99X
Document Type	Standard
ISBN
Pages
Published
Publisher	European Committee for Standards - Electrical
Status	Superseded
Superseded By	EN 61936-1 : 2010 AMD 1 2014 EN 50522:2010

National Adoptions - (Show below) - (Hide below)

Equivalent Standard(s)	Relationship
SN HD 637 : 200S1	Identical
UNE 207003:2000	Identical
NFC 13 000 : 2003	Identical
NEN HD 637 : 1999	Identical
PN E-05115 : 2002	Identical
DIN VDE 0101 : 2000	Identical
I.S. HD 637:1999	Identical
DIN VDE 0101 : 2000	Corresponds

Standards Referenced By This Book - (Show below) - (Hide below)

UNE-EN 61400-24:2011	Wind turbines - Part 24: Lightning protection
BS EN 60695-1-40:2014	Fire hazard testing Guidance for assessing the fire hazard of electrotechnical products. Insulating liquids
DIN EN 45510-2-7:2003-12	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
NF EN 50122-1 : 2011 AMD 4 2018	RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRICAL SAFETY, EARTHING AND THE RETURN CIRCUIT - PART 1: PROTECTIVE PROVISIONS AGAINST ELECTRIC SHOCK
CEI EN 50508 : 2009	MULTI-PURPOSE INSULATING STICKS FOR ELECTRICAL OPERATIONS ON HIGH VOLTAGE INSTALLATIONS
BS EN 60204-11 : 2001	SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 11: REQUIREMENTS FOR HV EQUIPMENT FOR VOLTAGES ABOVE 1000 V A.C. OR 1500 V D.C. AND NOT EXCEEDING 36 KV
IEC 60695-1-40:2013	Fire hazard testing - Part 1-40: Guidance for assessing the fire hazard of electrotechnical products - Insulating liquids
EN 60204-11:2000/corrigendum:2010	SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 11: REQUIREMENTS FOR HV EQUIPMENT FOR VOLTAGES ABOVE 1000 V A.C. OR 1500 V D.C. AND NOT EXCEEDING 36 KV
EN 50191:2010	ERECTION AND OPERATION OF ELECTRICAL TEST EQUIPMENT
I.S. EN 45510-2-9:2008	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-9: ELECTRICAL EQUIPMENT - CABLING SYSTEMS
03/306578 DC : DRAFT APR 2003	EN 14658 - CONTINUOUS HANDLING EQUIPMENT AND SYSTEMS - SAFETY REQUIREMENTS FOR CONTINUOUS HANDLING EQUIPMENT FOR OPENCAST LIGNITE MINING
BS EN 45510-2-7:2002	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
CSA C22.3 No. 61936-1 : 2008 : R2015	POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
I.S. EN 45510-2-5:2002	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-5: ELECTRICAL EQUIPMENT - MOTORS
UNI CEI EN 45510-2-5 : 2011	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-5: ELECTRICAL EQUIPMENT - MOTORS
CSA IEC 61400-24 : 2012 : R2017	WIND TURBINES - PART 24: LIGHTNING PROTECTION
BS EN 50508:2009	MULTI-PURPOSE INSULATING STICKS FOR ELECTRICAL OPERATIONS ON HIGH VOLTAGE INSTALLATIONS
CEI UNI EN 45510-2-7 : 2006	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
BS EN 45510-2-5:2002	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-5: ELECTRICAL EQUIPMENT - MOTORS
I.S. EN 50122-1:2011	RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRICAL SAFETY, EARTHING AND THE RETURN CIRCUIT - PART 1: PROTECTIVE PROVISIONS AGAINST ELECTRIC SHOCK
CSA C22.3 No. 61936-1 : 2008	POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
CEI EN 50174-3 : 2014	INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
NF EN 50191 : 2011	ERECTION AND OPERATION OF ELECTRICAL TEST EQUIPMENT
CLC/TR 50488:2006	Railway applications - Safety measures for the personnel working on or near overhead contact lines
VDE 0141 : 2000	EARTHING SYSTEMS FOR POWER INSTALLATIONS WITH RATED VOLTAGES ABOVE 1 KV
VDI 2050 Blatt 5:2010-10	Requirements at technical equipment rooms - Electrical engineering
VDI 2075:2003-07	ICE SPORT FACILITIES - BUILDING SERVICES
12/30260552 DC : 0	BS EN 50174-3:201X - INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
12/30269145 DC : 0	BS EN 60695-1-40 ED 1.0 - FIRE HAZARD TESTING - PART 1-40: GUIDANCE FOR ASSESSING THE FIRE HAZARD OF ELECTROTECHNICAL PRODUCTS - INSULATING LIQUIDS
DIN VDE 0141 : 2000	EARTHING SYSTEM FOR SPECIAL POWER INSTALLATIONS WITH NOMINAL VOLTAGES ABOVE 1 KV
I.S. EN 50508:2009	MULTI-PURPOSE INSULATING STICKS FOR ELECTRICAL OPERATIONS ON HIGH VOLTAGE INSTALLATIONS
I.S. EN 50174-3:2013	INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
I.S. EN 60695-1-40:2014	FIRE HAZARD TESTING - PART 1-40: GUIDANCE FOR ASSESSING THE FIRE HAZARD OF ELECTROTECHNICAL PRODUCTS - INSULATING LIQUIDS
I.S. EN 45510-2-7:2002	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
PREN 50174-3 : DRAFT 2012	INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
I.S. EN 50191:2010	ERECTION AND OPERATION OF ELECTRICAL TEST EQUIPMENT
IEC 60204-11:2000	Safety of machinery - Electrical equipment of machines - Part 11: Requirements for HV equipment for voltages above 1 000 V a.c. or 1 500 V d.c. and not exceeding 36 kV
I.S. EN 60204-11:2000	SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES PART 11: REQUIREMENTS FOR HV EQUIPMENT FOR VOLTAGES ABOVE 1000 V A.C. OR 1500 V D.C. AND NOT EXCEEDING 36 KV
EN 50532:2010	Compact Equipment Assembly for Distribution Substations (CEADS)
EN 45510-2-9:2008	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-9: ELECTRICAL EQUIPMENT - CABLING SYSTEMS
CEI EN 61400-24 : 2011	WIND TURBINES - PART 24: LIGHTNING PROTECTION
UNE-EN 60695-1-40:2014	Fire hazard testing - Part 1-40: Guidance for assessing the fire hazard of electrotechnical products - Insulating liquids
I.S. EN 50532:2010	COMPACT EQUIPMENT ASSEMBLY FOR DISTRIBUTION SUBSTATIONS (CEADS)
CEI CLC/TR 50488 : 2007	RAILWAY APPLICATIONS - SAFETY MEASURES FOR PERSONNEL WORKING NEAR OVERHEAD CONTACT LINES
CEI UNI EN 45510-2-5 : 2006	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-5: ELECTRICAL EQUIPMENT - MOTORS
UNI CEI EN 45510-2-7 : 2011	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
EN 50174-3:2013/A1:2017	INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
I.S. EN 61400-24:2010	WIND TURBINES - PART 24: LIGHTNING PROTECTION
UNE-EN 50508:2011	Multi-purpose insulating sticks for electrical operations on high voltage installations
BS EN 50532:2010	Compact equipment assembly for distribution substations (CEADS)
08/30182527 DC : DRAFT MAY 2008	BS EN 50122-1 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRICAL SAFETY, EARTHING AND BONDING - PART 1: PROTECTIVE PROVISIONS AGAINST ELECTRIC SHOCK
09/30202403 DC : 0	BS EN 50532 - COMPACT EQUIPMENT ASSEMBLY FOR DISTRIBUTION SUBSTATIONS (CEADS)
08/30160532 DC : DRAFT MAY 2008	BS EN 50122-1 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRICAL SAFETY, EARTHING AND BONDING - PART 1: PROTECTIVE PROVISIONS AGAINST ELECTRIC SHOCK
UNE-EN 50532:2011	Compact Equipment Assembly for Distribution Substations (CEADS)
09/30205281 DC : 0	BS EN 50191 - ERECTION AND OPERATION OF ELECTRICAL TEST EQUIPMENT
BS EN 50122-1 : 2011	RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRICAL SAFETY, EARTHING AND THE RETURN CIRCUIT - PART 1: PROTECTIVE PROVISIONS AGAINST ELECTRIC SHOCK
EN 45510-2-9 : 2008	GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-9: ELECTRICAL EQUIPMENT - CABLING SYSTEMS
EN 45510-2-5:2002	Guide for procurement of power station equipment - Part 2-5: Electrical equipment - Motors
EN 45510-2-7:2002	Guide for procurement of power station equipment - Part 2-7: Electrical equipment - Switchgear and controlgear
CSA IEC 61400-24:2012	WIND TURBINES - PART 24: LIGHTNING PROTECTION
BS EN 50191:2010	Erection and operation of electrical test equipment
09/30190333 DC : 0	BS EN 61400-24 - WIND TURBINES - PART 24: LIGHTNING PROTECTION
BS EN 61400-24:2010	Wind turbines Lightning protection
S.R. CLC/TR 50488:2007	RAILWAY APPLICATIONS - SAFETY MEASURES FOR THE PERSONNEL WORKING ON OR NEAR OVERHEAD CONTACT LINES
06/30159668 DC : 0	BS EN 50508 - MULTI-PURPOSE INSULATING STICKS FOR ELECTRICAL OPERATIONS ON HIGH VOLTAGE INSTALLATIONS
S.R. HD 60364-1:2008	LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 1: FUNDAMENTAL PRINCIPLES, ASSESSMENT OF GENERAL CHARACTERISTICS, DEFINITIONS
BS EN 50174-3 : 2013	INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
IEC 61400-24:2010	Wind turbines - Part 24: Lightning protection
BS EN 45510-2-9:2008	Guide for procurement of power station equipment Electrical equipment. Cabling systems
EN 50508:2009	Multi-purpose insulating sticks for electrical operations on high voltage installations
EN 61400-24:2010	Wind turbines - Part 24: Lightning protection
EN 60695-1-40:2014	Fire hazard testing - Part 1-40: Guidance for assessing the fire hazard of electrotechnical products - Insulating liquids
EN 50122-1:2011/A4:2017	RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRICAL SAFETY, EARTHING AND THE RETURN CIRCUIT - PART 1: PROTECTIVE PROVISIONS AGAINST ELECTRIC SHOCK

Standards Referencing This Book - (Show below) - (Hide below)

EN 60517:1996/A11:1999	GAS-INSULATED METAL-ENCLOSED SWITCHGEAR FOR RATED VOLTAGES OF 72,5 KV AND ABOVE
IEC 60826:2017	Design criteria of overhead transmission lines
EN 60721-3-1:1997	Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 1: Storage
HD 464 : S1 AMD 5 2002	DRY-TYPE POWER TRANSFORMERS
IEC 60724:2000+AMD1:2008 CSV	Short-circuit temperature limits of electric cables with rated voltages of 1 kV (U_m = 1,2 kV) and 3 kV (U_m = 3,6 kV)
ISO 1996-2:2017	Acoustics — Description, measurement and assessment of environmental noise — Part 2: Determination of sound pressure levels
EN 61219:1993	Live working - Earthing or earthing and short-circuiting equipment using lances as short-circuiting device - Lance earthing
EN 60623:2017	Secondary cells and batteries containing alkaline or other non-acid electrolytes - Vented nickel-cadmium prismatic rechargeable single cells
EN 50020:2002	Electrical apparatus for potentially explosive atmospheres - Intrinsic safety 'i'
EN 61230:2008	LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
EN 60721-3-9:1993/A1:1995	CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 3: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - SECTION 9: MICROCLIMATES INSIDE PRODUCTS
EN 60721-3-5:1997	Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 5: Ground vehicle installations
IEC 60478-1:1974	Stabilized power supplies, d.c. output. Part 1: Terms and definitions
HD 606.1 : 200S1	MEASUREMENT OF SMOKE DENSITY OF ELECTRIC CABLES BURNING UNDER DEFINED CONDITIONS - TEST APPARATUS
EN 60896-1:1991/A2:1992	STATIONARY LEAD-ACID BATTERIES - GENERAL REQUIREMENTS AND METHODS OF TEST - VENTED TYPES
EN 60721-3-0:1993	Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Introduction
IEC 61243-3:2014	Live working - Voltage detectors - Part 3: Two-pole low-voltage type
IEC 60949:1988	Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects
EN 61100:1992	Classification of insulating liquids according to fire point and net calorific value
EN 50017:1998	Electrical apparatus for potentially explosive atmospheres - Powder filling "q"
EN 50019:2000/corrigendum Apr. 2003	ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - INCREASED SAFETY "E"
EN 60721-3-7:1995/A1:1997	CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 3: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - SECTION 7: PORTABLE AND NON-STATIONARY USE
HD 606.2 : 200S1	MEASUREMENT OF SMOKE DENSITY OF ELECTRIC CABLES BURNING UNDER DEFINED CONDITIONS - TEST PROCEDURE AND REQUIREMENTS
EN 50018 : 2000 AMD 1 2002	ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - FLAMEPROOF ENCLOSURE "D"
HD 472 S1:1989/AC:2013	NOMINAL VOLTAGES FOR LOW-VOLTAGE PUBLIC ELECTRICITY SUPPLY SYSTEMS
EN 60255-6 : 94 AC 95	ELECTRICAL RELAYS - MEASURING RELAYS AND PROTECTION EQUIPMENT
IEC 61243-1:2003+AMD1:2009 CSV	Live working - Voltage detectors - Part 1: Capacitive type to be used for voltages exceeding 1 kV a.c.
EN 60060-2:2011	High-voltage test techniques - Part 2: Measuring systems
EN 60298:1996/A11:1999	A.C. METAL-ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 KV AND UP TO AND INCLUDING 52 KV
IEC 60044-6:1992	Instrument transformers - Part 6: Requirements for protective current transformers for transient performance
EN 61330:1996	High-voltage/low-voltage prefabricated substations
EN 60694:1996/A2:2001	COMMON SPECIFICATIONS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDS
ISO 1996-3:1987	Acoustics Description and measurement of environmental noise Part 3: Application to noise limits
EN 50110-1:2013	Operation of electrical installations - Part 1: General requirements
IEC 61243-5:1997	Live working - Voltage detectors - Part 5: Voltage detecting systems (VDS)
ISO 1996-1:2016	Acoustics Description, measurement and assessment of environmental noise Part 1: Basic quantities and assessment procedures
IEC 60478-2:1986	Stabilized power supplies, d.c. output. Part 2: Rating and performance
EN 60865-1:2012	Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
EN 60071-1:2006/A1:2010	INSULATION CO-ORDINATION - PART 1: DEFINITIONS, PRINCIPLES AND RULES
EN 50265-2-2:1998	Common test methods for cables under fire conditions - Test for resistance to vertical flame propagation for a single insulated conductor or cable - Part 2-2: Procedures - Diffusion flame
IEC 60287-3-1:2017	Electric cables - Calculation of the current rating - Part 3-1: Operating conditions - Site reference conditions
EN 61082-1:2015	Preparation of documents used in electrotechnology - Part 1: Rules
IEC 60478-5:1993	Stabilized power supplies, d.c. output - Part 5: Measurement of the magnetic component of the reactive near field
EN 60071-2:1997	Insulation co-ordination - Part 2: Application guide
ENV 61024-1 : DRAFT 1995	PROTECTION OF STRUCTURES AGAINST LIGHTNING - GENERAL PRINCIPLES
EN 60622:2003	Secondary cells and batteries containing alkaline or other non-acid electrolytes - Sealed nickel-cadmium prismatic rechargeable single cells
EN 50267-2-3:1998	Common test methods for cables under fire conditions - Tests on gases evolved during combustion of materials from cables - Part 2-3: Procedures - Determination of degree of acidity of gases for cables by determination of the weighted average of pH and conductivity
IEC 60478-4:1976	Stabilized power supplies, d.c. output. Part 4: Tests other than radio-frequency interference
IEC 60243-2:2013	Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage
EN 60721-1:1995/A2:1995	CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 1: ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES
EN 50015:1998	Electrical apparatus for potentially explosive atmospheres - Oil immersion "o"
EN 60721-3-2:1997	Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 2: Transportation
HD 405.3 : 200S1	TESTS OF ELECTRIC CABLES UNDER FIRE CONDITIONS - TESTS ON BUNCHED WIRES OR CABLES
EN 50016:2002	Electrical apparatus for potentially explosive atmospheres - Pressurized apparatus "p"
HD 384.4.442 : 200S1	ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 4: PROTECTION FOR SAFETY - CHAPTER 44: PROTECTION AGAINST OVERVOLTAGES - SECTION 442: PROTECTION OF LOW-VOLTAGE INSTALLATIONS AGAINST FAULTS BETWEEN HIGH-VOLTAGE SYSTEMS AND EARTH
HD 384.3 : 200S2	ELECTRICAL INSTALLATIONS OF BUILDINGS - ASSESSMENT OF GENERAL CHARACTERISTICS
EN 60076-2:2011	Power transformers - Part 2: Temperature rise for liquid-immersed transformers
IEC 60331:1970	Fire-resisting characteristics of electric cables
EN 50028:1987	Electrical apparatus for potentially explosive atmospheres - Encapsulation 'm'
EN 60721-3-4:1995/A1:1997	CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 3: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - SECTION 4: STATIONARY USE AT NON-WEATHER-PROTECTED LOCATIONS
EN 50014:1997/A2:1999	ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - GENERAL REQUIREMENTS
EN 50110-2:2010	Operation of electrical installations - Part 2: National annexes
EN 60721-3-6:1993/A2:1997	CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 3: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - SHIP ENVIRONMENT
EN 50265-1:1998	Common test methods for cables under fire conditions - Test for resistance to vertical flame propagation for a single insulated conductor or cable - Part 1: Apparatus
IEC 60478-3:1989	Stabilized power supplies, d.c. output. Part 3: Reference levels and measurement of conducted electromagnetic interference (EMI)
EN 60617-13:1993	Graphical symbols for diagrams - Part 13: Analogue elements
HD 246.2 : 200S1	DIAGRAMS, CHARTS, TABLES - ITEM DESIGNATION
EN 50265-2-1:1998	Common test methods for cables under fire conditions - Test for resistance to vertical flame propagation for a single insulated conductor or cable - Part 2-1: Procedures - 1 kW pre-mixed flame
EN 60721-3-3 : 95 AMD 2 97	CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - STATIONARY USE AT WEATHER-PROTECTED LOCATIONS
HD 533 : 200S1	SHORT-CIRCUIT CALCULATION IN THREE-PHASE A.C. SYSTEMS

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