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NR/SP/ELP/21014

Specification of voltage testing electrical distribution equipment (including cables) on a.c. and d.c. electrified lines

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Organization: NR
Publication Date: 1 December 2005
Status: active
Page Count: 22
scope:

This specification applies to the major items of electrical distribution equipment (switchgear, transformers and cables) in the range 3.3 kV to 66 kV, 50 Hz on A.C. and D.C. Electrified Lines.

This specification does not apply in cases where equipment is removed from site for major refurbishment, modification or repair.

Purpose

This specification states the requirements for on-site voltage testing (pressure testing) of major items of electrical distribution equipment, including cables, in the range 3.3 kV to 66 kV, 50 Hz, on A.C. and D.C. Electrified Lines when the performance of insulation has been affected by refurbishment, modification, repair or relocation. The specification provides guidance on the selection of test voltage values and durations applicable to the equipment as it ages.

The voltage testing is to establish whether the electrical insulation properties of the equipment are acceptable for return to service.

Document History

NR/SP/ELP/21014
December 1, 2005
Specification of voltage testing electrical distribution equipment (including cables) on a.c. and d.c. electrified lines
This specification applies to the major items of electrical distribution equipment (switchgear, transformers and cables) in the range 3.3 kV to 66 kV, 50 Hz on A.C. and D.C. Electrified Lines. This...
November 1, 1997
Voltage Testing of High Voltage Electrical Distribution Equipment on AC & DC Electrified Lines
This specification applies to the major items of electrical distribution equipment (switchgear, transformers and cables) in the range 3.3 kV to 66 kV, 50 Hz on A.C. and D.C. Electrified Lines. This...

References

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