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immediate downloadReleased: 2013-10-31
BS EN 50123-3:2003+A1:2013
Railway applications. Fixed installations. D.C. switchgear Indoor d.c. disconnectors, switch-disconnectors and earthing switches
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| Standard number: | BS EN 50123-3:2003+A1:2013 |
| Pages: | 26 |
| Released: | 2013-10-31 |
| ISBN: | 978 0 580 82865 2 |
| Status: | Standard |
DESCRIPTION
BS EN 50123-3:2003+A1:2013
This standard BS EN 50123-3:2003+A1:2013 Railway applications. Fixed installations. D.C. switchgear is classified in these ICS categories:
- 45.020 Railway engineering in general
- 29.120.40 Switches
This part of EN 50123 specifies requirements for d.c. disconnectors, switch-disconnectors and earthing switches for use in indoor fixed installations of traction systems.
NOTE 1 Switchgear assemblies, electromagnetic compatibility (EMC) and dependability are not covered in this part of EN 50123, but rather by other parts of this standard or other documents as indicated in EN 50123-1.
NOTE 2 In this standard the word "unit" means "disconnector and/or switch-disconnector and/or earthing switch" as defined in 3.1.4, 3.1.5 and 3.1.6 of EN 50123-1.
NOTE 3 Disconnectors, switch-disconnectors and earthing switches may have electrically latched mechanisms and, in such cases, may be indicated with the current term of "power contactors".