NR/L2/SIG/11655
Management of Cable & Wire Insulation
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| Organization: | NR |
| Publication Date: | 3 December 2011 |
| Status: | active |
| Page Count: | 10 |
scope:
This standard applies to signalling cable & wire insulation degradation on the infrastructure.
Inspection of wire insulation degradation on the signalling infrastructure is covered by NR/L3/SIG/31655.
Purpose
The safety integrity of the signalling system is at risk if cable/wire insulation is allowed to degrade. This standard specifies:
- The requirements for inspections
- The precautions to be taken during inspections
- Constraints to be placed on work where degradation is detected, and
- Action to be taken to remove degraded
wiring/installations
.
When the insulation degrades, the inner conductor can become exposed and come into contact with other exposed wires and terminals. The risks are that:
- Contacts are bypassed in a circuit
- Circuits are falsely energised
- Electrical shock, especially when carrying out hand tracing.
Document History
NR/L2/SIG/11655
December 3, 2011
Management of Cable & Wire Insulation
This standard applies to signalling cable & wire insulation degradation on the infrastructure.
Inspection of wire insulation degradation on the signalling infrastructure is covered by...
August 26, 2008
Management of Signalling Wire & Cable Insulation Degradation
The scope of this standard is the management of insulation degradation in signalling wires and cables of all types, including trackside multi-core cables.
Purpose
The purpose of this document is to...
October 1, 1999
Management of Signalling Wire & Cable Insulation Degradation
The scope of this specification is the management of insulation degradation in signalling wires and cables of all types, including trackside multi-core cables.
PURPOSE
The purpose of this document...