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immediate downloadReleased: 2009-07-31
BS EN 60947-7-2:2009
Low-voltage switchgear and controlgear Ancillary equipment. Protective conductor terminal blocks for copper conductors
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Standard number: | BS EN 60947-7-2:2009 |
Pages: | 22 |
Released: | 2009-07-31 |
ISBN: | 978 0 580 68511 8 |
Status: | Standard |
DESCRIPTION
BS EN 60947-7-2:2009
This standard BS EN 60947-7-2:2009 Low-voltage switchgear and controlgear is classified in these ICS categories:
- 35.100.40 Transport layer
- 25.040.40 Industrial process measurement and control
- 29.130.20 Low voltage switchgear and controlgear
- 29.120.99 Other electrical accessories
- 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.