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GB 29303-2012 English PDF (GB29303-2012)

GB 29303-2012 English PDF (GB29303-2012)

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GB 29303-2012: [GB/T 29303-2012] Switched protective earth portable residual current devices for class I and battery powered vehicle applications

This Standard specifies the classification, characteristics, marking and product information, standard conditions for operation in service and for installation, and requirements for construction and operation of SPE-PRCDs.
GB 29303-2012
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 29.120.50
K 31
Switched protective earth portable residual
current devices for class I and battery powered
vehicle applications (SPE-PRCD)
(IEC 62335.2008, MOD)
ISSUED ON. DECEMBER 31, 2012
IMPLEMENTED ON. DECEMBER 1, 2013
Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 8
1 Scope ... 9
2 Normative references ... 10
3 Terms and definitions ... 12
3.1 Definitions relating to plugs and socket-outlets ... 12
3.2 Definitions relating to residual current devices ... 16
3.3 Definitions relating to tests ... 26
4 Classification ... 26
4.1 According to the method of supply ... 26
4.2 According to the method of operation ... 26
4.3 According to the construction ... 26
4.4 According to the ambient temperature ... 26
4.5 According to the method of connecting the cable ... 27
5 Characteristics of SPE-PRCDs ... 27
5.1 General ... 27
5.2 Rated quantities and other characteristics ... 27
5.3 Standard and preferred values ... 29
5.4 Coordination with short-circuit protective devices (SCPDs) ... 30
6 Marking and other product information ... 31
7 Standard conditions for operation in service and for installation ... 35 7.1 Standard conditions ... 35
7.2 Conditions for installations ... 35
8 Requirements for construction and operation ... 36
8.1 Mechanical design ... 36
8.2 Protection against electric shock ... 50
8.3 Dielectric properties ... 52
8.4 Temperature rise ... 52
8.5 Operating characteristics ... 52
8.6 Mechanical and electrical endurance ... 52
8.7 Performance at short-circuit currents ... 53
8.8 Resistance to mechanical shock and impact ... 53
8.9 Resistance to heat... 53
8.10 Resistance to abnormal heat and to fire ... 53
8.11 Test device ... 53
8.12 Limits of the operating voltages ... 54
8.13 Resistance of SPE-PRCDs against unwanted tripping due to surge currents to earth resulting from impulse voltages ... 54
8.14 Behaviour of SPE-PRCDs in case of an earth fault current comprising a d.c. component ... 54
8.15 Reliability ... 54
8.16 Resistance to tracking ... 55
8.17 Electromagnetic compatibility (EMC) ... 55
8.18 Behaviour of the SPE-PRCD at low ambient air temperature ... 55
9 Tests ... 55
9.1 General ... 55
9.2 Test conditions ... 57
9.3 Test of indelibility of marking ... 57
9.4 Test of reliability of screws, current-carrying parts and connections ... 58 9.5 Test of reliability of terminals for external conductors ... 59
9.6 Verification of protection against electric shock ... 60
9.7 Test of dielectric properties ... 62
9.8 Temperature-rise test and test of the earthing path ... 64
9.9 Verification of the operating characteristic ... 65
9.10 Verification of mechanical and electrical endurance ... 74
9.11 Verification of the behaviour of the SPE-PRCD under overcurrent
conditions (including the earthing path) ... 76
9.12 Verification of resistance to mechanical shock and impact ... 85
9.13 Test of resistance to heat ... 88
9.14 Resistance of insulating material to abnormal heat and to fire ... 90 9.15 Verification of the trip-free mechanism ... 92
9.16 Verification of the test device ... 92
9.17 Verification of the behaviour of SPE-PRCDs in case of failure of the line voltage... 93
9.18 Verification of limiting values of the non-operating current under overcurrent conditions ... 95
9.19 Verification of resistance against unwanted tripping due to surge currents to earth resulting from impulse voltages for SPE-PRCDs ... 95
9.20 Verification of the resistance of the insulation against an impulse voltage ... 95
9.21 Verification of the correct operation with residual currents having a d.c. component ... 97
9.22 Verification of reliability ... 98
9.23 Verification of ageing of electronic components ...101
9.24 Resistance to tracking ...103
9.25 Test on pins provided with insulating sleevess ...103
9.26 Test of mechanical strength of non-solid pins of plugs and portable socket-outlets ...103
9.27 Verification of the effects of strain on the conductors ...103
9.28 Checking of the torque exerted by plug-in SPE-PRCDs on fixed socket- outlets ...104
9.29 Tests of the cord anchorage ...104
9.30 Flexing test of non-rewirable SPE-PRCDs ...

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