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 119 replies
  • Subscribers 32 subscribers
  • Views 17601 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

Type A rcd . EICR coding ? etc

aligarjon
Hi Guys.   Not been on for a long time, just had a bit of a search and couldn't really find anything so thought i would ask and see what you all thought.


1.  Are we or will we be coding type AC rcd's if there are LED's or induction hobs, lots of electronics  etc  present.

2. How much DC leakage does it actually take to saturate an rcd and cause  problem?

3. How much does a standard LED lamp or induction hob  leak ?

If we test an AC RCD with no load and it's fine then re-test it with all LED lights, induction hobs etc turned on and it operates correctly could we then say that it is ok with a note on EICR  OR EIC if installing any of the above.  


Obviously also on an EICR if the RCD then doesn't operate with it all on it becomes a C2 ?


Any thoughts



Gary
Parents
  • 0
    I think the old RCD was getting a bit trip happy in its old age, unlike its new fresh out of the box cousin and did not like the freezer kicking in.


    I'd be surprised and interested if RCDs get more trip-happy.  I can't imagine a mechanism for it. 

    I think it's just that they were always trigger-happy [edit: trip-happy], but that:  (a) modern loads are better at stimulating the trip-happiness, and (b) modern RCDs are less trip-happy because of the standards requirements.  How much (a) caused (b) or vice versa I don't try hard to guess .. it was sensible to do (b) anyway as there were cases of RCDs tripping on transients from the supply that caused currents in L-PE or N-PE capacitance. 


Reply
  • 0
    I think the old RCD was getting a bit trip happy in its old age, unlike its new fresh out of the box cousin and did not like the freezer kicking in.


    I'd be surprised and interested if RCDs get more trip-happy.  I can't imagine a mechanism for it. 

    I think it's just that they were always trigger-happy [edit: trip-happy], but that:  (a) modern loads are better at stimulating the trip-happiness, and (b) modern RCDs are less trip-happy because of the standards requirements.  How much (a) caused (b) or vice versa I don't try hard to guess .. it was sensible to do (b) anyway as there were cases of RCDs tripping on transients from the supply that caused currents in L-PE or N-PE capacitance. 


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