derating factors for enclosed conductors
Posted 04 January 2006 - 08:55 PM
I have looked at a number of cable handbooks and standards and codes and have found heaps on enclosed conductors in thermal insulation and overall derating factors but have not been able to pin down this specific factor. eg of application: internal cabling run in wiring duct of a metalic switchboard.
I need this to extrapolate data from manufacturers handbook.
i hope someone can help me out.
Posted 29 April 2006 - 04:33 PM
Posted 10 April 2007 - 08:30 AM
try the IEE wiring regulation (cannot remmember he exact BS no.)
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