Published:
16 February 2012
Category:
Q&A
Alan asks a question about transportable container mineral insulated wiring and Table 4A2 reference methods. It is answered here by SELECT (Theme – Cables and Wiring):
This Q & A is one of thousands posted in our Technical Expertise area, and answered on a daily basis by our Voltimum Experts.
Question: All the wiring in a transportable 40ft container facility is clipped directly to a metal surface and the majority of the circuits are made using mineral insulated, copper clad material.
I cannot find anything in the table that matches this, neither in the current nor my available legacy editions of BS7671. Please advise….?
Answer: You should probably use Number 30 (see p262 of BS 7671:2008), which is Reference Method C.
See also p268 for Table 4C1 and p298 for Table 4G1A.
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