Section 26.2 of BS5839-1:2002 with A2:2008 gives the recommendations for cabling. Generally standard fire resisting cables should be used for the mains supply, with enhanced required in some circumstances.
On the large commercial sites I attend a separate supply is made straight from the busbar...
This question is a no-brainer (which suits me)
Around my way the NICEIC name carries the most respect from the public/councils and yes, other electrical contractors even if they also belong to ECA etc
I am a DI with NIC just to make Part P issues go away. If I actually did a greater percentage...
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