The IET is carrying out some important updates between 17-30 April and all of our websites will be view only. For more information, read this Announcement

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 31 subscribers
  • Views 2891 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Checking Appliance Earthing.

Zoomup
Today I spoke to the manager of a local chain of domestic appliance retail shops. The chain sells and installs appliances like cookers and ovens etc. I asked the manager if they carry out an earth fault loop impedance test to confirm adequate earthing of the supply circuits and good earthing of appliances like cookers. He said that they did not. He asked me what test gear is used to carry  out the tests. I was shocked by this. People are having appliances installed by unqualified installers and the earthing effectiveness is not being tested.


Also his shop has nuisance tripping of the R.C.D. when several appliances are turned on. In particular washing machines cause tripping. Probably down to the 50 appliances each leaking a small current to earth via their internal mains filters. Get the cheapest quote. That''ll do. That's Norfolk for you.



Z.


Z.
Parents
  • 0
    It's an interesting question. Is it really the appliance supplier/installer's responsibility to check the adequacy of the installation's earthing? (rather  than just their connection - which at a push could probably be adequately checked with a look and a tug).


    If we'd been a bit more organised in the past and come up with a plug & socket arrangement for cooker connections would anyone really be expecting anyone to do a loop test before plugging a cooker in?


       - Andy.
Reply
  • 0
    It's an interesting question. Is it really the appliance supplier/installer's responsibility to check the adequacy of the installation's earthing? (rather  than just their connection - which at a push could probably be adequately checked with a look and a tug).


    If we'd been a bit more organised in the past and come up with a plug & socket arrangement for cooker connections would anyone really be expecting anyone to do a loop test before plugging a cooker in?


       - Andy.
Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines