cable routing


Postby haliday » Wed Mar 05, 2008 1:20 pm

By agreement with my electrician (who is temporarily not contactable) I am running the cables for a new immersion heater and electric radiators on the first floor and he will then check and make the connections. It is an old two storey cottage and for several reasons I do not want to run cables in the void between floor and ceiling. This leaves the options of taking the cables up into the roof space and down again where they serve the units or running them in trunking round the walls at first floor level. I prefer the former from a practical and appearance point of view but are there any restrictions on doing this? If instead you would go for the horizontal trunking approach, can this be at floor level in the form of a purpose made mdf skirting duct?
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Postby ericmark » Wed Mar 05, 2008 5:22 pm

1. Volt drop is a consideration and long runs may cause a problem. (Appendix 12) you can calculate all this around the 60 meters mark.
2. Surface cables can run without the restrictions placed on cables buried in a wall. 522.6.6
3. You can buy dado and skirting trunking but expensive making your own trunking it will not comply with British standards and not in anything that can burn like wood.
All this will need verifying by your electrician it is really his decision. He is the one signing the form and does not matter as to what the regulations say you need his agreement.
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