Cable help

[R32]

If something is to be installed using twin with protective conductor PVC insulated and sheathed cable how do I find out the ambient temperature correction factor? I need it for 45[SUP]o[/SUP]C and I have 0.79 for 70[SUP]o[/SUP]C thermoplastic and 0.91 for 90[SUP]o[/SUP]C thermoplastic. How do I tell which one is the right correction factor?

 

[Guest123]

Standard BS 6242Y is a 70 degree C, thermoplastic cable.

 

[R32]

Thanks Lenny!