Type of Wiring systems

[mehrdad]

Can anybody help me with this question because I don't understand what does following the question mean? Types of wiring systems used for the a)distribution systems(sub main) b)environmental control/building management systems c)communication and data transmission systems Many thanks in advance

 

[Clive P]

Hi,

Just have a think about it, Mains/ standard wiring systems and comms.

Regards.

 

[Simonslimline]

You may find the trainee section helpful if you're studying!

 

[GLENNSPARK]

class 1 and class 2...