Panel problem

[rizla1990]

1.5ma? You sure?

Maybe there was a x on it, the scale was 0.5-2.5 on both

 

[LeeH]

Could have been just a kiss.

 

[davesparks]

Sorry guys, forgot to let you know, turns out antony you are spot on, it was set quite low 0.5ma and 0.5 time delay. It has worked like this for around 10 months no problems. Have turned up to 1.5ma and 1.5 time delay and all is good. Thanks again everyone for the help

Was this a random hit and hope job or did you work out the correct settings for this particular system?

 

[rizla1990]

Was this a random hit and hope job or did you work out the correct settings for this particular system?

I had a second opinion of a panel builder friend of mine, he could not see the point of this particular circuit in the wiring diagram, he has made panels and installed them in almost identical situations so he agreed that i should try turning it up first otherwise to bypass it but as it worked by turning it up its all good

 

[LeeH]

Then he's a tard.

 

[rizla1990]

Then he's a tard.

That may be your opinion. This forum seems to be full of people that just want to criticise everything everyone says . Suppose all of you guys have been perfect since day1 on the job! Never had to ask for help!?
Well i will not be wasting any more time on here.

 

[Bobster]

I guess the panel builder doesn't know much about M&Q regs, why would he.

Best hope nothing goes wrong, as on your head be it.

Just to add, M&Q is statute law an has teeth unlike bs7671

 

[davesparks]

I had a second opinion of a panel builder friend of mine, he could not see the point of this particular circuit in the wiring diagram, he has made panels and installed them in almost identical situations so he agreed that i should try turning it up first otherwise to bypass it but as it worked by turning it up its all good

There must be a point to it, otherwise it would not be there. Nobody will have put expensive components in to a panel for no good reason.

I can appreciate adjusting it as part of a fault finding process, but adjusting it permanently when you don't even know why it is there just makes no sense.

 

[Andy-1960]

The CT at the bottom of the panel looks like a core balanced transformer to me, therefore the entire system is being monitored for earth leakage, this is why the isolator is tripping. Glad I'm not looking for the fault!!