Power circuits problem

[Swrate]

I've got a job for next sat and the client has said he has 6 floorboxes in his office and 3 don't work.they are on 2 circuits and when he resets the mcb the other mcb trips! I was thinking crossed legs between the 2 circuits but it must have been ok when installed. Any thoughts?

 

[Darkwood]

Welcome to the forum

 

[sparksburnout]

You need to move to Derbyshire no problem with crossed legs at all. Two heads possibly.

 

[ruston]

You need to look . Customers descriptions can be iffy at the best of times.

 

[Pete999]

Time to get the MFT out

 

[Richard Burns]

If you have an MCB tripping then there is a significant fault that can be found. If it turns out to be an RCD tripping it is less clear but as it is instant it should be easy to find.
You would have to provide more detail on exactly which boxes are powered by which circuits and what exactly happens when MCBs are on or off.
It sounds a bit like an interconnected circuit with a fault.

 

[telectrix]

if the cabling is under floor in a void, could be roland has been nibbling.

 

[snowhead]

Or the area is infested with Beavers.

 

[Deleted member 9648]

Or the area is infested with Beavers.

Well....some of the offices I've been in.....

 

[ruston]

Well....some of the offices I've been in.....

One of the few bonuses of 'pat' testing. :crazy:
On second thoughts ,the only one.

 

[slingshot2000]

One of the few bonuses of 'pat' testing. :crazy:
On second thoughts ,the only one.

Been there, seen the beavers!