RCD tests and EIC

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as GH says, a test from each circuit may give slightly different trip times, but the regs do state test shold be done as near to RCD as possible, so you could easily test at the RCD terminals, then all results will definitely be the same
quite so Captain paint ball! ;)

 
Well the Don, cannot agree with your line of thinking here.On a 17th edition CU, we have 2 RCD's connected to 2 banks of circuits. In a newly tested installation, with no equipment etc connected and with all circuits exceeding the minimum requirements of BS7671 testing (Zs, IR, R1 + R2, functional testing etc).

And verified each circuit is on which bank, then surely testing of the RCD at the CU (and or at individual circuit point) is sufficient.

And then the RCD times applied to ALL circuits on the relevant bank.

The Godfather
I agree with the horse chopper as well....

well ffs i aint stoopid..

would you disagree with the Don?

theres only one person worse to disagree with....

ADMIN2!!! :eek: :O:O

:coat

 
I would like to thank my fellow members for discussing and clarifying the reasoning behind the single testing

while i was in bed !!!!!!!

Personally i have tested all the ccts and to be fair there has not been too much of a difference.......just time consuming

one test on each rcd it is then

 
However each circuit has a column relating to the rcd type and disconnection times, your proposals are to now fill each column as N/A ?If so the electrical installation certificates will have to be reprinted with all the columns removed, and in its place two columns one for each RCD .

I would suggest you get back on the line to Elesca and verify why such a statement was made and why.

I still do every circuit but all my certs are fully filled and not part filled.
Why would they need reprinting? What if you have an rcbo on a circuit that will require those columns.

Ian.

 
I would like to thank my fellow members for discussing and clarifying the reasoning behind the single testingwhile i was in bed !!!!!!!
Stay up later then!

AndyC is putting sometimes an extra 2 hours in in the evening now. He's often on till midnight. :D

The late shift is much more fun!

now will Specs agree with that?

:)

 
I have always tested for every eventuality, its how I was taught way back, and is now a habit that I have got into.

After some deliberation today, where I argued my point I must now eat some humble pie, and I now have to agree with other posters on this topic.

I would not say that I am totally at fault, I probably over test if you ever can that is.

However I have now reduced my testing times, thanks to all of you who have put me right!

The differences in times to be honest are so miniscule it was hardly worth me doing them in the first place. Like I said its just a habit I got into, but intend to change.

So once again an old dog learns something new from the best forum on the planet!!!

 
I have always tested for every eventuality, its how I was taught way back, and is now a habit that I have got into.After some deliberation today, where I argued my point I must now eat some humble pie, and I now have to agree with other posters on this topic.

I would not say that I am totally at fault, I probably over test if you ever can that is.

However I have now reduced my testing times, thanks to all of you who have put me right!

The differences in times to be honest are so miniscule it was hardly worth me doing them in the first place. Like I said its just a habit I got into, but intend to change.

So once again an old dog learns something new from the best forum on the planet!!!
Dont forget the topic the other day about a UPS preventing RCD from functioning properly - tests fine in isolation but not under normal use, so it can be safer to test more than is required

 
I have always tested for every eventuality, its how I was taught way back, and is now a habit that I have got into.After some deliberation today, where I argued my point I must now eat some humble pie, and I now have to agree with other posters on this topic.

I would not say that I am totally at fault, I probably over test if you ever can that is.

However I have now reduced my testing times, thanks to all of you who have put me right!

The differences in times to be honest are so miniscule it was hardly worth me doing them in the first place. Like I said its just a habit I got into, but intend to change.

So once again an old dog learns something new from the best forum on the planet!!!
Probably save your legs running back to reset that RCD too.

Ian.

 
The differences in times to be honest are so miniscule it was hardly worth me doing them in the first place. Like I said its just a habit I got into, but intend to change.

So once again an old dog learns something new from the best forum on the planet!!!
The Don is pleased.

The Godfather

 
Probably save your legs running back to reset that RCD too.Ian.
I have auto reset on my tester so its not a problem :D

But it will save me some time now lol

 
As everyone has already said this is a test is for the RCD not the circuits.

In the schedule of test results I put in a row for each RCD which I allocate an id (A,B...) and the readings that go with it. I label the RCDs in the CCU with this id.

Then for each circuit that is protected by an RCD I put the appropriate RCD id in the RCD column.

This is not an ideal solution but I does clearly show which results go with which RCD, and doesn't duplicate results (which I really hate).

I guess most people use fancy software to generate their forms so can't abuse them like me!

 
I have always tested for every eventuality, its how I was taught way back, and is now a habit that I have got into.After some deliberation today, where I argued my point I must now eat some humble pie, and I now have to agree with other posters on this topic.

I would not say that I am totally at fault, I probably over test if you ever can that is.

However I have now reduced my testing times, thanks to all of you who have put me right!

The differences in times to be honest are so miniscule it was hardly worth me doing them in the first place. Like I said its just a habit I got into, but intend to change.

So once again an old dog learns something new from the best forum on the planet!!!
Top man Mr Hornet sir!Applaud SmileyApplaud SmileyApplaud Smiley

:x :x

IMHO Its far better that you have been possibly "over testing" but been absolutely sure that your work is safe before handing back over to the customer...

Rather than to have been skipping essential tests, (as some less conscientious sparks may do), that may have left possible hazards or dangers.

; )Applaud Smiley

This is a classic example of one of the best points about this forum..

Sharing info & learning in a polite & friendly manner..

once again Cheers Guiness DrinkGuiness Drink:Y:Y:Y

to ALL our members.. Admins & Mods etc...:)Guiness DrinkGuiness DrinkGuiness Drink

 
Stay up later then!AndyC is putting sometimes an extra 2 hours in in the evening now. He's often on till midnight. :D

The late shift is much more fun!

now will Specs agree with that?

:)
Agree with a VET?????? ?:| :eek:

whada ya take me for....

i may be crazzeyy... :p :p:p

but I aint no idjut!!! ]:)

 
Agree with a VET?????? ?:| :eek: whada ya take me for....

i may be crazzeyy... :p :p:p

but I aint no idjut!!! ]:)
pah

hold still mr guinea pig....................

Just a little injection...............

It's just like going to sleep..................

;)

:D

 
as GH says, a test from each circuit may give slightly different trip times, but the regs do state test shold be done as near to RCD as possible, so you could easily test at the RCD terminals, then all results will definitely be the same
Andy

I think if you try testing a mem rcbo at the terminals it may not work.

Batty

 
Stay up later then!AndyC is putting sometimes an extra 2 hours in in the evening now. He's often on till midnight. :D

The late shift is much more fun!

now will Specs agree with that?

:)
its not as if i have anything better to do at mindnight. like sleeping or something!

 
AndyI think if you try testing a mem rcbo at the terminals it may not work.

Batty
havent tried a MEM RCBO but i usually avoid testing at the terminals where possible anyway, saves having to hold all probes in place till the testing is done. much easier just plugging it in

 
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