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 23 replies
  • Subscribers 32 subscribers
  • Views 2361 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

How a simple job can go wrong quickly....

Former Community Member
Former Community Member
Not my work before I relate:


Existing 3-ph circuit breaker DB in a shop has a 30 mA 4 pole RCD belatedly fitted in a separate enclosure to provide blanket RCD protection. OK, not ideal.

Electrician asked to install extra 13 A socket-outlet in window during shop hours so padlocks off the circuit's circuit-breaker and proceeds, He lets the circuit neutral and cpc touch when fitting the socket-outlet and out trips the RCD as expected. Resets and shop keeper then announces that the card reader, till, air-con and some lights not working.


All that equipment now duff (technical term!).


For an interesting weekend quiz, what happened?


Without hindsight and the work being done during opening hours, what would you have done differently?


Regards


BOD






Parents
  • 0
    I am not convinced by the the reversed polarity theory, I think the electrician carried out the safe isolation including testing for voltage being present.


    So I do not think there was a big bang and the electrician was aware that there was a problem until being told that there was by the shop keeper.


     Andy Betteridge
Reply
  • 0
    I am not convinced by the the reversed polarity theory, I think the electrician carried out the safe isolation including testing for voltage being present.


    So I do not think there was a big bang and the electrician was aware that there was a problem until being told that there was by the shop keeper.


     Andy Betteridge
Children
No Data

Community Rules & Guidelines