Hi, i require some help

[Spark40]

Describe the use of BS 7671/IET wiring, and other regulations, when selecting wires and cables and when carrying out tests on systems

Could anyone please assist me on what to say here?

 

[telectrix]

question is a bit vague. as a starter you use BS7671 regs. using tables in there to select cables for current carrying capacity and volt drop. once installed, you the n carry out tests to ensure that the installation is compliant.

 

[Spoon]

question is a bit vague. as a starter you use BS7671 regs. using tables in there to select cables for current carrying capacity and volt drop and all other de-rating factors. once installed, you then carry out tests to ensure that the installation is compliant.

Just added a bit there mate.
The question is very vague.

 

[Pete999]

question is a bit vague. as a starter you use BS7671 regs. using tables in there to select cables for current carrying capacity and volt drop. once installed, you the n carry out tests to ensure that the installation is compliant.

And again, plus, what course are you studying for? these questions you are asking, seem typical of examination questions.