HD 60364-4-43:2010
Current
The latest, up-to-date edition.
Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent
03-26-2010
FOREWORD
43 Protection against overcurrent
431 Requirements according to the nature of the circuits
432 Nature of protective devices
433 Protection against overload current
434 Protection against short-circuit currents
435 Coordination of overload and short-circuit protection
436 Limitation of overcurrent by characteristics of supply
Annex A (informative) Protection of conductors in parallel
against overcurrent
Annex B (informative) Conditions 1 and 2 of 433.1
Annex C (informative) Position or omission of devices for
overload protection
Annex D (informative) Position or omission of devices for
short-circuit protection
Annex E (informative) List of notes concerning certain countries
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
Annex ZB (normative) Special national conditions
Bibliography
IEC 60364-4-43:2008 provides requirements for the protection of live conductors from the effects of overcurrents. IEC 60364-4-43:2008 describes how live conductors are protected by one or more devices for the automatic disconnection of the supply in the event of overload (Clause 433) and short-circuit (Clause 434) except in cases where the overcurrent is limited in accordance with Clause 436 or where the conditions described in 433.3 (omission of devices for protection against overload) or 434.3 (omission of devices for protection against short-circuit) are met. Coordination of overload protection and short-circuit protection is also covered (Clause 435). This third edition cancels and replaces the second edition, published in 2001, and constitutes a technical revision. The main changes with respect to the previous edition are: - Introduction of new informative Annexes B, C and D. - Information concerning flexible cables added to Scope. - Requirements added for overload detection for the neutral conductor for harmonic currents. - Requirement that devices for protection against short-circuit current be capable of making as well as breaking short-circuit current added. - Information added to clarify protection against overload current. - Requirements where devices for protection against overload need not be provided expanded. - Requirements where devices for protection against short-circuit need not be provided expanded. - Requirements for short-circuit current ratings of busbar trunking systems added. The contents of the corrigendum of October 2008 have been included in this copy.
Committee |
CLC/TC 64
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DevelopmentNote |
Supersedes HD 384.4.43. (04/2010) Supersedes HD 384.4.473. (03/2013)
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DocumentType |
Standard
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PublisherName |
European Committee for Standards - Electrical
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Status |
Current
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Supersedes |
Standards | Relationship |
I.S. HD 60364-4-43:2010 | Identical |
PN HD 60364-4-43 : 2012 | Identical |
S.R. HD 60364-4-43:2010 | Identical |
DIN VDE 0100-430:2010-10 | Identical |
SN HD 60364-4-43 : 2010 | Identical |
VDE 0100-430 : 2010-10 | Identical |
NEN HD 60364-4-43 : 2010 | Identical |
UNE-HD 60364-4-43:2013 | Identical |
DS HD 60364-4-43 : 2010 (SIK) | Identical |
UNE-HD 50573-5-57:2014 | Co-ordination of electrical equipment for protection, isolation, switching and control |
HD 60364-7-708:2017 | Low-voltage electrical installations - Part 7-708: Requirements for special installations or locations - Caravan parks, camping parks and similar locations |
S.R. HD 60364-5-557:2013 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-557: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - AUXILIARY CIRCUITS |
I.S. HD 60364-5-559:2012 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-559: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - LUMINAIRES AND LIGHTING INSTALLATIONS (IEC 60364-5-55:2011 (MOD)) |
I.S. HD 60364-7-715:2005 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-715: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - EXTRA-LOW-VOLTAGE LIGHTING INSTALLATIONS (IEC 60364-7-715:2011 (MOD)) |
S.R. HD 60364-7-715:2012 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-715: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - EXTRA-LOW-VOLTAGE LIGHTING INSTALLATIONS |
I.S. EN 1648-2:2018 | LEISURE ACCOMMODATION VEHICLES - 12 V DIRECT CURRENT EXTRA LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 2: MOTOR CARAVANS |
I.S. EN IEC 62485-2:2018 | SAFETY REQUIREMENTS FOR SECONDARY BATTERIES AND BATTERY INSTALLATIONS - PART 2: STATIONARY BATTERIES |
UNI EN 1648-2 : 2012 | LEISURE ACCOMMODATION VEHICLES - 12 V DIRECT CURRENT EXTRA LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 2: MOTOR CARAVANS |
S.R. HD 60364-7-709:2009 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-709: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - MARINAS AND SIMILAR LOCATIONS |
I.S. EN 1648-1:2018 | LEISURE ACCOMMODATION VEHICLES - 12 V DIRECT CURRENT EXTRA LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 1: CARAVANS |
CLC/TR 60269-5:2011 | Low-voltage fuses - Part 5: Guidance for the application of low-voltage fuses |
BS 7671(2008) : 2018 | REQUIREMENTS FOR ELECTRICAL INSTALLATIONS - IET WIRING REGULATIONS |
HD 60364-5-534:2016 | Low-voltage electrical installations - Part 5-53: Selection and erection of electrical equipment - Isolation, switching and control - Clause 534: Devices for protection against transient overvoltages |
EN IEC 62485-2:2018 | Safety requirements for secondary batteries and battery installations - Part 2: Stationary batteries |
HD 60364-5-557:2013/A11:2016 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-557: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - AUXILIARY CIRCUITS |
HD 60364-5-559:2012/A11:2017 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-559: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - LUMINAIRES AND LIGHTING INSTALLATIONS |
12/30235292 DC : 0 | BS EN 50343 - RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING |
17/30354245 DC : 0 | BS EN 1648-1 - LEISURE ACCOMMODATION VEHICLES - 12 V DIRECT CURRENT EXTRA LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 1: CARAVANS |
S.R. HD 60364-5-534:2016 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - ISOLATION, SWITCHING AND CONTROL - CLAUSE 534: DEVICES FOR PROTECTION AGAINST TRANSIENT OVERVOLTAGES |
17/30354248 DC : 0 | BS EN 1648-2 - LEISURE ACCOMMODATION VEHICLES - 12 V DIRECT CURRENT EXTRA LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 2: MOTOR CARAVANS |
UNE-HD 60364-5-56:2010 | Low-voltage electrical installations - Part 5-56: Selection and erection of electrical equipment - Safety services |
VDI 2166 Blatt 2:2015-10 | Planning of electrical installations in buildings - Advice for electric mobility |
HD 60364-7-709:2009/A11:2017 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-709: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - MARINAS AND SIMILAR LOCATIONS |
I.S. HD 60364-7-710:2012 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-710: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - MEDICAL LOCATIONS (IEC 60364-7-710:2002 (MOD)) |
S.R. HD 60364-5-551:2010 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-55: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - OTHER EQUIPMENT - CLAUSE 551: LOW-VOLTAGE GENERATING SETS |
I.S. HD 60364-5-56:2010 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-56: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - SAFETY SERVICES (IEC 60364-5-56:2009 (EQV)) |
S.R. HD 60364-7-708:2017 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-708: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - CARAVAN PARKS, CAMPING PARKS AND SIMILAR LOCATIONS |
PREN 1648-2 : DRAFT 2017 | LEISURE ACCOMMODATION VEHICLES - 12 V DIRECT CURRENT EXTRA LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 2: MOTOR CARAVANS |
UNE-HD 60364-7-710:2014 | Low-voltage electrical installations - Part 7-710: Requirements for special installations or locations - Medical locations |
UNE-HD 60364-5-53:2016 | Low-voltage electrical installations - Part 5-53: Selection and erection of electrical equipment - Switchgear and controlgear |
PREN 1648-1 : DRAFT 2017 | LEISURE ACCOMMODATION VEHICLES - 12 V DIRECT CURRENT EXTRA LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 1: CARAVANS |
HD 60364-5-56:2010/A12:2017 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-56: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - SAFETY SERVICES |
S.R. HD 60364-5-53:2015 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR |
S.R. HD 60364-5-559:2012 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-559: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - LUMINAIRES AND LIGHTING INSTALLATIONS |
UNI EN 1648-1 : 2012 | LEISURE ACCOMMODATION VEHICLES - 12 V DIRECT CURRENT EXTRA LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 1: CARAVANS |
S.R. CLC/TR 60269-5:2011 | LOW-VOLTAGE FUSES - PART 5: GUIDANCE FOR THE APPLICATION OF LOW-VOLTAGE FUSES |
I.S. HD 60364-7-708:2009 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-708: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - CARAVAN PARKS, CAMPING PARKS AND SIMILAR LOCATIONS |
I.S. HD 60364-5-551:2010 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-55: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - OTHER EQUIPMENT - CLAUSE 551: LOW-VOLTAGE GENERATING SETS |
S.R. CLC/TR 50480:2011 | DETERMINATION OF CROSS-SECTIONAL AREA OF CONDUCTORS AND SELECTION OF PROTECTIVE DEVICES |
UNE-EN 61009-1:2013 | Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs) - Part 1: General rules |
PD CLC/TR 50480:2011 | Determination of cross-sectional area of conductors and selection of protective devices |
UNE-HD 60364-5-534:2016 | Low-voltage electrical installations - Part 5-53: Selection and erection of electrical equipment - Isolation, switching and control - Clause 534: Devices for protection against transient overvoltages |
BS EN 60204-33:2011 | Safety of machinery. Electrical equipment of machines Requirements for semiconductor fabrication equipment |
BS EN 61009-1 : 2012 | RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS WITH INTEGRAL OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR USES (RCBOS) - PART 1: GENERAL RULES |
EN 61009-1:2012/A12:2016 | RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS WITH INTEGRAL OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR USES (RCBOS) - PART 1: GENERAL RULES |
EN 1648-1:2018 | Leisure accommodation vehicles - 12 V direct current extra low voltage electrical installations - Part 1: Caravans |
EN 1648-2:2018 | Leisure accommodation vehicles - 12 V direct current extra low voltage electrical installations - Part 2: Motor caravans |
UNE-HD 60364-7-709:2011 | Low-voltage electrical installations -- Part 7-709: Requirements for special installations or locations - Marinas and similar locations |
I.S. HD 50573-5-57:2014 | CO-ORDINATION OF ELECTRICAL EQUIPMENT FOR PROTECTION, ISOLATION, SWITCHING AND CONTROL |
I.S. HD 60364-7-709:2009 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-709: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - MARINAS AND SIMILAR LOCATIONS (IEC 60364-7-709:2007 (MOD)) |
UNE-HD 60364-7-708:2018 | Low-voltage electrical installations - Part 7-708: Requirements for special installations or locations - Caravan parks, camping parks and similar locations |
S.R. HD 60364-5-56:2010 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-56: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - SAFETY SERVICES |
HD 50573-5-57:2014 | Co-ordination of electrical equipment for protection, isolation, switching and control |
I.S. EN 61009-1:2012 | RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS WITH INTEGRAL OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR USES (RCBOS) - PART 1: GENERAL RULES |
I.S. EN 60204-33:2011 | SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 33: REQUIREMENTS FOR SEMICONDUCTOR FABRICATION EQUIPMENT |
HD 60364-7-710:2012/AC:2013 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-710: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - MEDICAL LOCATIONS |
HD 60364-5-53:2015/A11:2017 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR |
BS 7671(2008) : 2008 | REQUIREMENTS FOR ELECTRICAL INSTALLATIONS - IET WIRING REGULATIONS |
CLC/TR 50480:2011 | Determination of cross-sectional area of conductors and selection of protective devices |
HD 60364-7-715:2012/A11:2017 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-715: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - EXTRA-LOW-VOLTAGE LIGHTING INSTALLATIONS |
EN 60204-33:2011 | Safety of machinery - Electrical equipment of machines - Part 33: Requirements for semiconductor fabrication equipment |
HD 60364-5-551:2010/A11:2016 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-55: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - OTHER EQUIPMENT - CLAUSE 551: LOW-VOLTAGE GENERATING SETS |
UNE-HD 60364-5-557:2014 | Low-voltage electrical installations - Part 5-557: Selection and erection of electrical equipment - Auxiliary circuits |
UNE-HD 60364-7-715:2013 | Low-voltage electrical installations - Part 7-715: Requirements for special installations or locations - Extra-low-voltage lighting installations |
UNE-HD 60364-5-551:2013 | Low-voltage electrical installations -- Part 5-55: Selection and erection of electrical equipment - Other equipment -- Clause 551: Low-voltage generating sets |
IEC 60287-1-3:2002 | Electric cables - Calculation of the current rating - Part 1-3: Current rating equations (100 % load factor) and calculation of losses - Current sharing between parallel single-core cables and calculation of circulating current losses |
IEC 60364-5-54:2011 | Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors |
IEC 60947-6-2:2002+AMD1:2007 CSV | Low-voltage switchgear and controlgear - Part 6-2: Multiple function equipment - Control and protective switching devices (or equipment) (CPS) |
IEC 60269-4:2009+AMD1:2012+AMD2:2016 CSV | Low-voltage fuses - Part 4: Supplementary requirements forfuse-links for the protection of semiconductor devices |
IEC 60724:2000+AMD1:2008 CSV | Short-circuit temperature limits of electric cables with rated voltages of 1 kV (<em>U</em><sub>m</sub> = 1,2 kV) and 3 kV (<em>U</em><sub>m</sub> = 3,6 kV) |
IEC 60947-4-1:2009+AMD1:2012 CSV | Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters |
IEC 60364-4-41:2005+AMD1:2017 CSV | Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock |
IEC 60439-2:2000+AMD1:2005 CSV | Low-voltage switchgear and controlgear assemblies - Part 2: Particular requirements for busbar trunking systems (busways) |
IEC 60269-2:2013+AMD1:2016 CSV | Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K |
HD 60364-4-41:2017/A11:2017 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 4-41: PROTECTION FOR SAFETY - PROTECTION AGAINST ELECTRIC SHOCK |
HD 60364-5-54:2011/A11:2017 | LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-54: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - EARTHING ARRANGEMENTS AND PROTECTIVE CONDUCTORS |
IEC 60269-1:2006+AMD1:2009+AMD2:2014 CSV | Low-voltage fuses - Part 1: General requirements |
EN 60947-1:2007/A2:2014 | LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: GENERAL RULES (IEC 60947-1:2007/A2:2014) |
EN 60947-3:2009/A2:2015 | LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 3: SWITCHES, DISCONNECTORS, SWITCH-DISCONNECTORS AND FUSE-COMBINATION UNITS (IEC 60947-3:2008/A2:2015) |
EN 60269-4:2009/A2:2016 | LOW-VOLTAGE FUSES - PART 4: SUPPLEMENTARY REQUIREMENTS FOR FUSE-LINKS FOR THE PROTECTION OF SEMICONDUCTOR DEVICES (IEC 60269-4:2009/A2:2016) |
EN 60947-4-1 : 2010 AMD 1 2012 | LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 4-1: CONTACTORS AND MOTOR-STARTERS - ELECTROMECHANICAL CONTACTORS AND MOTOR-STARTERS (IEC 60947-4-1:2009/A1:2012) |
IEC 60269-3:2010+AMD1:2013 CSV | Low-voltage fuses - Part 3: Supplementary requirements for fuses foruse by unskilled persons (fuses mainly for household or similar applications) - Examples of standardized systems of fuses A to F |
IEC 60947-1:2007+AMD1:2010+AMD2:2014 CSV | Low-voltage switchgear and controlgear - Part 1: General rules |
HD 60269-2:2013 | Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K |
IEC 61557-9:2014 | Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems |
IEC 60947-3:2008+AMD1:2012+AMD2:2015 CSV | Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units |
IEC 60947-2:2016 | Low-voltage switchgear and controlgear - Part 2: Circuit-breakers |
EN 60947-2:2017 | Low-voltage switchgear and controlgear - Part 2: Circuit-breakers |
EN 61557-9:2015/AC:2017-02 | ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 9: EQUIPMENT FOR INSULATION FAULT LOCATION IN IT SYSTEMS (IEC 61557-9:2014/COR2:2017) |
HD 60269-3:2010/A1:2013 | LOW-VOLTAGE FUSES - PART 3: SUPPLEMENTARY REQUIREMENTS FOR FUSES FOR USE BY UNSKILLED PERSONS (FUSES MAINLY FOR HOUSEHOLD AND SIMILAR APPLICATIONS) - EXAMPLES OF STANDARDIZED SYSTEMS OF FUSES A TO F |
EN 60439-2:2000/A1:2005 | LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 2: PARTICULAR REQUIREMENTS FOR BUSBAR TRUNKING SYSTEMS (BUSWAYS) |
IEC 60364-5-52:2009 | Low-voltage electrical installations - Part 5-52: Selection and erection of electrical equipment - Wiring systems |
EN 60269-1:2007/A2:2014 | LOW-VOLTAGE FUSES - PART 1: GENERAL REQUIREMENTS (IEC 60269-1:2006/A2:2014) |
EN 60947-6-2:2003/A1:2007 | LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 6-2: MULTIPLE FUNCTION EQUIPMENT - CONTROL AND PROTECTIVE SWITCHING DEVICES (OR EQUIPMENT) (CPS) |
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