BS7671 Question

[shnabz]

Where the hell is the answer to the following question in BS 7671:

The required current carrying capacity of a three-phase circuit conductor I[SUB]z [/SUB] is 26A. From the correct table, the minimum size of three single-core thermoplastic covered, heavy duty MICC cables, installed flat on a perforated cable tray and spaced by two cable diameters is
A.1.0mm2
B.1.5mm2
C.2.5mm2
D.4.0mm2

 

[Andy78]

Its a cable calc question so you want to be in appendix 4.

 

[telectrix]

table 4G1A in the BGB. might be differeny in BYB.

 

[Eland Cables]

Hi Shnabz,

The current carrying capacity for MICC cables is located in Table 4GA of BS7671, reference column 8 and 9 for your cable selection. Here's a link to the table and to MICC cables for ease of reference! http://www.elandcables.com/Eland/me...-Table-4E1A-Electrical-Wiring-Regulations.pdf
Fire Performance Mineral Insulated MICC Cables | Eland Cables

Happy to help further if needed.
Ivan
Eland Cables

 

[benji]

think smallest single core micc is 6mm ??

 

[davesparks]

That's a good point, none of the above answers are correct as 1H6 is the smallest listed