IEC 60947-7-2:2009
Current
The latest, up-to-date edition.
Low-voltage switchgear and controlgear - Part 7-2: Ancillary equipment - Protective conductor terminal blocks for copper conductors
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English - French, Spanish, Castilian
04-20-2009
FOREWORD
1 General
1.1 Scope
1.2 Normative references
2 Definitions
3 Classification
4 Characteristics
4.1 Summary of characteristics
4.2 Type of protective conductor terminal block
4.3 Rated and limiting values
4.3.2 Short-time withstand current
4.3.3 Standard cross-sections
4.3.4 Rated cross-section
4.3.5 Rated connecting capacity
5 Product information
5.1 Marking
5.2 Additional information
6 Normal service, mounting and transport conditions
7 Constructional and performance requirements
7.1 Constructional requirements
7.1.1 Clamping units
7.1.2 Connection of support
7.1.3 Clearance and creepage distances
7.1.4 Terminal block identification and marking
7.1.5 Resistance to abnormal heat and fire
7.1.6 Rated cross-section and rated connecting capacity
7.1.7 Protective conductor mounting rails
7.2 Performance requirements
7.2.1 Temperature rise
7.2.2 Dielectric properties
7.2.3 Short-time withstand current
7.2.4 Voltage drop
7.2.5 Electrical performance after ageing (for
screwless-type protective conductor
terminal blocks only)
7.3 Electromagnetic compatibility (EMC)
8 Tests
8.1 Kinds of test
8.2 General
8.3 Verification of mechanical characteristics
8.4 Verification of electrical characteristics
8.4.1 General
8.4.3 Dielectric tests
8.4.4 Verification of the voltage drop
8.4.5 Temperature-rise test
8.4.6 Short-time withstand current test
8.4.7 Ageing test (for screwless-type terminal blocks
only)
8.5 Verification of thermal characteristics
8.6 Verification of EMC characteristics
Annex A (normative) Maximum short-time withstand currents
allocated to the rail profile and thermal rated
current of a PEN busbar
IEC 60947-7-2:2009 specifies requirements for protective conductor terminal blocks with PE function up to 120 mm2 (250 kcmil) and for protective conductor terminal blocks with PEN function equal to and above 10 mm2 (AWG 8) with screw-type or screwless-type clamping units, primarily intended for industrial applications. Protective conductor terminal blocks are used to form the electrical and mechanical connection between copper conductors and the fixing support. lt is applicable to protective conductor terminal blocks for the connection of round copper conductors with or without special preparation having a cross-section between 0,2 mm2 and 120 mm2 (AWG 24 and 250 kcmil), intended to be used in circuits of a rated voltage not exceeding 1 000 V a.c. up to 1 000 Hz or 1 500 V d.c., most commonly in conjunction with terminal blocks according to IEC 60947-7-1. This standard may be used as guide for
- protective conductor terminal blocks requiring the fixing of special devices to the conductors, for example quick connect terminations or wrapped connections, etc.;
- protective conductor terminal blocks providing direct contact to the conductors by means of edges or points penetrating the insulation, for example insulation displacement connections, etc.
Where applicable in this standard, the term "clamping unit" has been used instead of the term "terminal". This is taken into account in case of reference to IEC 60947-1. The main technical modifications of this standard since this previous publication are listed below:
- requirements for tightening torques for the tests improved and referenced to Table 4 of IEC 60947-1, Annex B deleted;
- the wording of the short-time withstand current test improved in 8.4.6.
This publication shall be read in conjunction with IEC 60947-1:2007 and IEC 60947-7-1:2009.
Committee |
TC 121/SC 121A
|
DevelopmentNote |
To be read in conjunction with IEC 60947-1 and IEC 60947-7-1. (08/2002) Stability Date: 2022. (09/2017)
|
DocumentType |
Standard
|
Pages |
37
|
PublisherName |
International Electrotechnical Committee
|
Status |
Current
|
Supersedes |
Standards | Relationship |
NF EN 60947-7-2 : 2009 | Identical |
NEN EN IEC 60947-7-2 : 2009 | Identical |
SAC GB/T 14048-8 : 2016 | Identical |
AS/NZS IEC 60947.7.2:2015 | Identical |
VDE 0611-3 : 2010 | Identical |
DIN EN 60947-7-2 : 2010 | Identical |
I.S. EN 60947-7-2:2009 | Identical |
CEI EN 60947-7-2 : 2010 | Identical |
BS EN 60947-7-2:2009 | Identical |
UNE-EN 60947-7-2:2010 | Identical |
PN EN 60947-7-2 : 2012 | Identical |
NEN 10947-7-2 : 95 C1 1996 | Identical |
BS EN 61784-5-13:2013 | Identical |
SN EN 60947-7-2 : 1995 | Identical |
EN 60947-7-2:2009 | Identical |
CSA C22.2 No. 60079-7 : 2016 | EXPLOSIVE ATMOSPHERES - PART 7: EQUIPMENT PROTECTION BY INCREASED SAFETY 'E' |
BS EN 62683-1:2017 | Low-voltage switchgear and controlgear. Product data and properties for information exchange Catalogue data |
BS EN 60715:2017 | Dimensions of low-voltage switchgear and controlgear. Standardized mounting on rails for mechanical support of switchgear, controlgear and accessories |
NF EN 60079-15 : 2010 | EXPLOSIVE ATMOSPHERES - PART 15: EQUIPMENT PROTECTION BY TYPE OF PROTECTION 'N' |
I.S. EN 60694:1999 | COMMON SPECIFICATIONS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDS |
I.S. EN 62683-1:2017 | LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PRODUCT DATA AND PROPERTIES FOR INFORMATION EXCHANGE - PART 1: CATALOGUE DATA |
EN 62271-1:2017 | High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear |
IEC 62683-1:2017 | Low-voltage switchgear and controlgear - Product data and properties for information exchange - Part 1: Catalogue data |
IEC 60079-7:2015+AMD1:2017 CSV | Explosive atmospheres - Part 7: Equipment protection by increased safety "e" |
EN IEC 60079-7:2015/A1:2018 | EXPLOSIVE ATMOSPHERES - PART 7: EQUIPMENT PROTECTION BY INCREASED SAFETY 'E' (IEC 60079-7:2015/A1:2017) |
IEC 60694:1996+AMD1:2000+AMD2:2001 CSV | Common specifications for high-voltage switchgear and controlgear standards |
BS EN 62477-1 : 2012 | SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL (IEC 62477-1:2012) |
EN 60694:1996/A2:2001 | COMMON SPECIFICATIONS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDS |
EN 62683:2015 | Low-voltage switchgear and controlgear - Product data and properties for information exchange |
12/30235292 DC : 0 | BS EN 50343 - RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING |
05/30139105 DC : DRAFT SEP 2005 | IEC 61800-5-1 ED 2 - ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 5-1: SAFETY REQUIREMENTS - ELECTRICAL, THERMAL AND ENERGY |
04/30111859 DC : 0 | IEC 62271-1 - HIGH-VOLTAGE SWITCHGEAR AND CONTROL GEAR - PART 1: COMMON SPECIFICATIONS |
I.S. EN 62477-1:2012 | SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL |
BS EN 60079-7 : 2015 | EXPLOSIVE ATMOSPHERES - PART 7: EQUIPMENT PROTECTION BY INCREASED SAFETY 'E' (IEC 60079-7:2015) |
EN 62683-1:2017 | Low-voltage switchgear and controlgear - Product data and properties for information exchange - Part 1: Catalogue data |
I.S. EN 60079-15:2010 | EXPLOSIVE ATMOSPHERES - PART 15: EQUIPMENT PROTECTION BY TYPE OF PROTECTION 'N' |
I.S. EN 62683:2015 | LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PRODUCT DATA AND PROPERTIES FOR INFORMATION EXCHANGE |
CEI EN 50343 : 2015 | RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING |
CEI EN 60079-15 : 2012 | EXPLOSIVE ATMOSPHERES - PART 15: EQUIPMENT PROTECTION BY TYPE OF PROTECTION 'N' |
IEC 62271-1:2017 | High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear |
I.S. EN 61800-5-1:2007 | ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 5-1: SAFETY REQUIREMENTS - ELECTRICAL, THERMAL AND ENERGY |
EN 60079-15:2010 | Explosive atmospheres - Part 15: Equipment protection by type of protection "n" |
EN 61800-5-1:2007/A1:2017 | ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 5-1: SAFETY REQUIREMENTS - ELECTRICAL, THERMAL AND ENERGY (IEC 61800-5-1:2007/A1:2016) |
NEMA ICS 4:2015 | Application Guideline for Terminal Blocks |
14/30278882 DC : 0 | BS EN 60079-7 IEC 60079-7 ED. 5.0 - EXPLOSIVE ATMOSPHERES - PART 7: EQUIPMENT PROTECTION BY INCREASED SAFETY 'E' |
16/30336111 DC : 0 | BS EN 60715 ED 2.0 - DIMENSIONS OF LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - STANDARDIZED MOUNTING ON RAILS FOR MECHANICAL SUPPORT OF SWITCHGEAR, CONTROLGEAR AND ACCESSORIES |
IEC TR 63054:2017 | Low-voltage switchgear and controlgear - Fire risk analysis and risk reduction measures |
15/30265353 DC : 0 | BS EN 62271-1 ED 2 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: COMMON SPECIFICATIONS FOR ALTERNATING CURRENT SWITCHGEAR AND CONTROLGEAR |
BS EN 50343 : 2014 | RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING |
BS EN 62271-1:2017 | High-voltage switchgear and controlgear Common specifications for alternating current switchgear and controlgear |
I.S. EN 60715:2017 | DIMENSIONS OF LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - STANDARDIZED MOUNTING ON RAILS FOR MECHANICAL SUPPORT OF SWITCHGEAR, CONTROLGEAR AND ACCESSORIES |
BIS IS/IEC 62271-1 : 2007 | HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: COMMON SPECIFICATIONS |
BS EN 60079-15:2010 | Explosive atmospheres Equipment protection by type of protection \'n\' |
BS EN 62683:2015 | Low-voltage switchgear and controlgear. Product data and properties for information exchange |
IEC 60715:2017 | Dimensions of low-voltage switchgear and controlgear - Standardized mounting on rails for mechanical support of switchgear, controlgear and accessories |
EN 60715:2017 | Dimensions of low-voltage switchgear and controlgear - Standardized mounting on rails for mechanical support of switchgear, controlgear and accessories |
BS EN 61800-5-1:2007 | Adjustable speed electrical power drive systems Safety requirements. Electrical, thermal and energy |
15/30259978 DC : 0 | BS EN 62477-2 - SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 2: POWER ELECTRONIC CONVERTERS FROM 1000 V A.C. OR 1500 V D.C. UP TO 36 KV A.C. OR 54 KV D.C. |
08/30176298 DC : DRAFT JAN 2008 | BS EN 62477-1 - SAFETY REQUIREMENTS FOR POWER SEMICONDUCTOR CONVERTER SYSTEMS - PART 1: GENERAL |
IEC TS 60204-34:2016 | Safety of machinery - Electrical equipment of machines - Part 34: Requirements for machine tools |
I.S. EN 50343:2014 | RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING |
IEC 62477-1:2012+AMD1:2016 CSV | Safety requirements for power electronic converter systems and equipment - Part 1: General |
13/30292412 DC : 0 | BS EN 62683 - PRODUCT DATA AND PROPERTIES FOR INFORMATION EXCHANGE |
ISO 22734-2:2011 | Hydrogen generators using water electrolysis process Part 2: Residential applications |
BS ISO 22734-2:2011 | Hydrogen generators using water electrolysis process Residential applications |
UNE-EN 60079-15:2013 | Explosive atmospheres - Part 15: Equipment protection by type of protection "n" |
PD IEC/TR 63054:2017 | Low-voltage switchgear and controlgear. Fire risk analysis and risk reduction measures |
BS EN 60694:1997 | Common specifications for high-voltage switchgear and controlgear standards |
UNE-EN 62683:2016 | Low-voltage switchgear and controlgear - Product data and properties for information exchange |
BIS IS/IEC 60079-7 : 2006 | EXPLOSIVE ATMOSPHERES - PART 7: EQUIPMENT PROTECTION BY INCREASED SAFETY 'E' |
I.S. EN 60079-7:2015 | EXPLOSIVE ATMOSPHERES - PART 7: EQUIPMENT PROTECTION BY INCREASED SAFETY 'E' |
NF EN 61800 5-1 : 2007 | ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 5-1: SAFETY REQUIREMENTS - ELECTRICAL, THERMAL AND ENERGY |
UNE-EN 60079-7:2016 | Explosive atmospheres - Part 7: Equipment protection by increased safety "e" |
I.S. EN 62271-1:2017 | HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: COMMON SPECIFICATIONS FOR ALTERNATING CURRENT SWITCHGEAR AND CONTROLGEAR |
EN 62477-1:2012/A1:2017 | SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL (IEC 62477-1:2012/A1:2016) |
BS ISO 22734-1:2008 | Hydrogen generators using water electrolysis process Industrial and commercial applications |
ISO 22734-1:2008 | Hydrogen generators using water electrolysis process Part 1: Industrial and commercial applications |
15/30322229 DC : 0 | BS EN 61800-5-1:2007/AMD 1 - ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 5-1: SAFETY REQUIREMENTS - ELECTRICAL, THERMAL AND ENERGY |
UNE-ISO 22734-1:2012 | Hydrogen generators using water electrolysis process. Part 1: Industrial and commercial applications |
EN 50343 : 2014 AMD 1 2017 | RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING |
CSA C22.2 No. 60079-15 : 2016 | EXPLOSIVE ATMOSPHERES - PART 15: EQUIPMENT PROTECTION BY TYPE OF PROTECTION 'N' |
IEC 60947-7-1:2009 | Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors |
IEC 60715:2017 | Dimensions of low-voltage switchgear and controlgear - Standardized mounting on rails for mechanical support of switchgear, controlgear and accessories |
IEC 60947-1:2007+AMD1:2010+AMD2:2014 CSV | Low-voltage switchgear and controlgear - Part 1: General rules |
IEC 60439-1:1999+AMD1:2004 CSV | Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies |
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