Discuss RCD Problem in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

S

Spaced

Hi all

Anyone got any thoughts on this....

TNS arrangement
ZE = 0.65 ohms
ZS on tested circuit 0.85ohms

RCD >1999 on 0.5 x

28 & 32 ish ms on 1 x

> 40 ms on 0 & 180 degs although the unit did pass on 0 degrees once or twice before failing the 180

Tested my Megger against a known good external RCD and changed batteries all to no
avail.

I haven't tested across the RCD directly as I didn't think to whilst on site but any suggestions would be most welcome.

The RCD is new as the old unit was giving 110ish ms on 1x and >40 ms on 5x so I assumed that it was this.

Thanks
CJ
 
as you're getting probs with 2 different rcds, i would test with loads removed. then if test is ok, the loads arfe influencing the trip of the rcd,

sorry, substitue "circuits" for "loads"
 
Superb, thanks everyone for your assistance, really very much appreciated.
I'll let you know how I get on tomorrow.

Thanks again.
CJ
 
Re: RCD Problem - Sorted!

Hi everyone

Just a quick update. Tracked the problem down to a new Saniflo macerator!
Turned off the FCU and all good.

Thanks again for everyones input.

Regards

CJ
 

Reply to RCD Problem in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock