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Wiring and certificates

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1 May 2006
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I was working in a mechanics garage and found a strange wiring configuration Im not sure if its bad practice or frowned upon, more importantly how to write it on the certificate

Coming out of the mcb was a red and yellow, blue went to neutral (colors noted) the red and blue fed 2 lights and were switched on their own. In the back of one of the lights the yellow joined onto a red from a twin and earth and the blue joined onto the black from the twin and earth, this twin and earth then fed a seperate switch controlling 2 seperate lights.

would you write it down as 1 circuit and take the highest readings from it?

Another question I had was there was a 5amp cartridge fuse supplying 3 lights and someone had wired the intruder spur onto this circuit as well, how would you write this down on the certificate as they should be seperate.

When I ask how would you write it down Im just after advice as to how you would put it on the cable test schedule
 
It's a report, not a certificate :)

It's a single circuit, albeit a messy single circuit. Treat it as one.

Regarding the alarm, you can only describe it as lighting and intruder alarm.
As long as the alarm is protected by an adequately rated FCU as per the MI then it's just bad practice sharing the same circuit, nothing more.
 
cheers Garry, its my 1st periodic since gaining 2391 so little bit new to it.


3 phase
Some screws would be nice
What is your opinion with regards to the tails, you can see the phase insulation is damaged, is it deemed unsafe or a recommendation?
 

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