AS/NZS IEC 60947.7.1:2015
Low-voltage switchgear and controlgear - Part 7.1: Ancillary equipment - Terminal blocks for copper conductors
Specifies requirements for terminal blocks with screw-type or screwless-type clamping units primarily intended for industrial or similar use and to be fixed to a support to provide electrical and mechanical connection between copper conductors. It applies to terminal blocks intended to connect round copper conductors, with or without special preparation, having a cross-section between 0.2 mm2 and 300 mm2 (AWG 24/600 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. Identical to and reproduced from IEC 60947-7-1, Ed. 3.0 (2009).
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AS/NZS IEC 60947.7.1:2015 Low-voltage switchgear and controlgear Part 7.1: Ancillary equipment—Terminal blocks for copper conductors
COPYRIGHT
PREFACE
CONTENTS
1 General
1.1 Scope
1.2 Normative references
2 Definitions
3 Classification
4 Characteristics
4.1 Summary of characteristics
4.2 Type of terminal block
4.3 Rated and limiting values
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
7.2 Performance requirements
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
8.5 Verification of thermal characteristics
8.6 Verification of EMC characteristics
Annex A Vacant
Annex B (informative) Items subject to agreement between manufacturer and user
Annex C Vacant
Annex D (normative) Additional requirements for test disconnect terminal blocks
D.1 Scope
D.2 Terms and definitions
D.3 Classification
D.4 Characteristics
D.5 Product information
D.6 Normal service, mounting and transport conditions
D.7 Constructional and performance requirements
D.8 Tests
Bibliography
Figure
Figure 1 − Arrangement for test according to 8.3.2
Figure 2 − Arrangement for tests according to 8.4.5 and 8.4.7,and for the verification of voltage drop
Figure 3 − Arrangement for test according to 8.5
Figure 4 − Point of test flame contact(view from the layer placed below the terminal block)
Figure D.1a – Verification of the voltage dropfor longitudinal disconnection within the terminal block
Figure D.1b – Verification of the voltage drop for perpendicular disconnection
Figure D.1c – Verification of the voltage dropfor direct longitudinal disconnection to the busbar
Table
Table 1 − Standard cross-sections of round copper conductors
Table 2 − Relationship between rated cross-sectionand rated connecting capacity of terminal blocks
Table 3 − Attachment test parameters
Table 4 − Values of test current for temperature-rise test, ageing testand voltage drop verification for metric wire sizes
Table 5 − Values of test current for temperature-rise test, ageing testand voltage drop verification for AWG or kcmil wire sizes
Table D.1 – Operating cycles
Table D.2 – Values of test current for temperature-rise test, ageing test and voltagedrop verification for metric wire sizes
Table D.3 – Values of test current for temperature-rise test, ageing test and voltagedrop verification for AWG or kcmil wire sizes
Table D.4 – Short-time withstand current and corresponding wire sizes in mm2
Table D.5 – Short-time withstand current and corresponding wire sizes in AWG
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AS/NZS IEC 60947.7.1:2015 Low-voltage switchgear and controlgear Part 7.1: Ancillary equipment—Terminal blocks for copper conductors
COPYRIGHT
PREFACE
CONTENTS
1 General
1.1 Scope
1.2 Normative references
2 Definitions
3 Classification
4 Characteristics
4.1 Summary of characteristics
4.2 Type of terminal block
4.3 Rated and limiting values
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
7.2 Performance requirements
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
8.5 Verification of thermal characteristics
8.6 Verification of EMC characteristics
Annex A Vacant
Annex B (informative) Items subject to agreement between manufacturer and user
Annex C Vacant
Annex D (normative) Additional requirements for test disconnect terminal blocks
D.1 Scope
D.2 Terms and definitions
D.3 Classification
D.4 Characteristics
D.5 Product information
D.6 Normal service, mounting and transport conditions
D.7 Constructional and performance requirements
D.8 Tests
Bibliography
Figure
Figure 1 − Arrangement for test according to 8.3.2
Figure 2 − Arrangement for tests according to 8.4.5 and 8.4.7,and for the verification of voltage drop
Figure 3 − Arrangement for test according to 8.5
Figure 4 − Point of test flame contact(view from the layer placed below the terminal block)
Figure D.1a – Verification of the voltage dropfor longitudinal disconnection within the terminal block
Figure D.1b – Verification of the voltage drop for perpendicular disconnection
Figure D.1c – Verification of the voltage dropfor direct longitudinal disconnection to the busbar
Table
Table 1 − Standard cross-sections of round copper conductors
Table 2 − Relationship between rated cross-sectionand rated connecting capacity of terminal blocks
Table 3 − Attachment test parameters
Table 4 − Values of test current for temperature-rise test, ageing testand voltage drop verification for metric wire sizes
Table 5 − Values of test current for temperature-rise test, ageing testand voltage drop verification for AWG or kcmil wire sizes
Table D.1 – Operating cycles
Table D.2 – Values of test current for temperature-rise test, ageing test and voltagedrop verification for metric wire sizes
Table D.3 – Values of test current for temperature-rise test, ageing test and voltagedrop verification for AWG or kcmil wire sizes
Table D.4 – Short-time withstand current and corresponding wire sizes in mm2
Table D.5 – Short-time withstand current and corresponding wire sizes in AWG
AS/NZS IEC 60947.7.1:2015
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.