The scenario I have is the provision of power distribution panels for power to temporary equipment in a Theatre environment. Typically these have a submain-type supply provided by the electrical contractor, and the panels contain internal busbars, various RCDs and circuit breakers, and various outlets including IEC60309 and 'Powerlock' connectors.  The internal panel wiring is usually done in tri-rated cable but with 'double insulated' (insulated and sheathed) cables required by the specification for connections rated at over 150A.

We have a need for some 'split' power panels where the outlet connectors are in a different location approx 20m away from the busbars and breakers.  There will be steel trunking between the 2 locations.

My question is if the use of Tri-Rated cables to BS 6231 and 'Coil End Lead' cable to BS 6195/69  (https://www.clevelandcable.com/media/pdfs/coil-end-lead-type4-cable.pdf) within the trunking as interlink cables would raise any regs compliance issues?  Assume that the terminations will be ferruled to be suitable for the terminal types, and the sizing would be calculated correctly.  It's also proposed to use black cable for all the connections, and provide coloured heatshrink identifiers at the terminations.

Any regs issues foreseen with this approach?

Thanks,

Jason.