Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 22 replies
  • Subscribers 32 subscribers
  • Views 5720 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

RCBO's and IR testing

Jaymack
I have had a problem with 5 off Wylex RCBO's. These were bought by a houseowner and fitted by him as there was no RCD protection for some circuits requiring such. These Wylex RCBO's have a warning hidden on the body that connections should be disconnected for Insulation Testing ..........too late the man cried!. For expediency and availability, I have redesigned the arrangement to have MCB's with a common RCBO as a M.S..

I have been in contact with Wylex technical help, who say that they should have been OK to withstand 250V IR testing as in this case, but to return them to the dealer. Anyone else have had similar problems?


Jaymack .
Parents
  • 0
    Some time back we played a 'what if' exercise on the old forum, to see what you would or would not bother testing, if you were only allowed one test before switch on.

    I think we agreed then that Zs would  win - the test, not the forum member, as all other faults posed little or no risk, or would most likley reveal themselves on energisation anyway.

    Polarity came a close second, but I guess with DP breaking RCBOs it is less of an issue. Insulation was further down the list.

    Insulation tests come into their own when the installation has already been made been dead for some reason, such as new work being added or a fault tripping something.

Reply
  • 0
    Some time back we played a 'what if' exercise on the old forum, to see what you would or would not bother testing, if you were only allowed one test before switch on.

    I think we agreed then that Zs would  win - the test, not the forum member, as all other faults posed little or no risk, or would most likley reveal themselves on energisation anyway.

    Polarity came a close second, but I guess with DP breaking RCBOs it is less of an issue. Insulation was further down the list.

    Insulation tests come into their own when the installation has already been made been dead for some reason, such as new work being added or a fault tripping something.

Children
No Data

Community Rules & Guidelines