- Oct 17, 2011
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- If you're a qualified, trainee, or retired electrician - Which country is it that your work will be / is / was aimed at?
- France
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- Other
- If other, please explain
- Retired Engineer
That’s my point. Most that I’ve seen are combined devices, so do we need a new form for a board filled with AFDDRCBO’s as well as a different one for split load boards, and another one for all RCBO boards?Will AFDD's ever become the norm, or will the manufacturers take the bull by the horns and combine them?
Live/Earth includes the neutral to Earth insulation resistance, as well as the line (phase) to Earth. Live/Live is not only phase to neutral, but also between all phases, and these to the neutral.Wondering why they isn’t a Zs box to fill in,& if Connected to origin do not fill in box.
Also altered the Rcd times,now just entering the x5 trip time.
Why is there no N-E insulation reading ,& a L-L entry,which I would take to be L-N.
Just pondering these thoughts,will phone helpline next time in office,but any ideas.
RCD is a generic term. What you are describing as an "RCD" is, in fact, an RCCB (residual current circuit breaker). This is merely one type of RCD.It's probably the Aspergers kicking in, everything must be correct and in order, to me an RCD does not do the same job as an RCBO therefore should not be listed in the same way.
This is my point I don’t do an all rcbo board I do a split load rcd but I see the pros and cons of both, on the test form if it’s rcbos you will enter each rcbo reading individually normally round about the same, and then rcd covering few circuits is the same for each circuitSo why do we recommend an all RCBO board and not a all RCD board?
I've seen this done before. Surely though we are recording the circuit details on each line, not just the device details. Every circuit under the RCD is protected by the RCD and therefore it is appropriate to enter the I delta n, and trip time on each of these circuits.I write the rccb in the circuit column if it’s a split load board, 61008, it’s current rating etc then I record only one rcd trip time measurement,I do not repeat the measurement to correspond to each circuit, for the column that covers 60898 devices I put N/A as it’s an mcb and not an rcbo.
I do record each circuit on each line but above I record the rccb, it’s rating, it’s I delta N etc then the circuits it protects underneath with its circuit number. One rcd, one trip time measurement, it’s just the way I do it, I used to do it that way before.I've seen this done before. Surely though we are recording the circuit details on each line, not just the device details. Every circuit under the RCD is protected by the RCD and therefore it is appropriate to enter the I delta n, and trip time on each of these circuits.
That's how I see it anyway.
So how do you show on the circuit schedule that the circuits following the RCD are in fact RCD protected?I do record each circuit on each line but above I record the rccb, it’s rating, it’s I delta N etc then the circuits it protects underneath with its circuit number. One rcd, one trip time measurement, it’s just the way I do it, I used to do it that way before.
If they are rcbos then there’s an rcd trip time for each circuit corresponding to each line.
Because I write the circuits underneath, then if there’s another rcd the other circuits are written under that one,So how do you show on the circuit schedule that the circuits following the RCD are in fact RCD protected?
For me that's not clear enough for someone else to interpret. Each to his own way I guess.Because I write the circuits underneath, then if there’s another rcd the other circuits are written under that one,
The other way it’s written to me suggests that the circuit have individual rcd protection as you have written 30mA for each 60898 and a trip time but there’s only one or two rcd’s etc.For me that's not clear enough for someone else to interpret. Each to his own way I guess.
I think the whole of the legislation is out of control, can anyone answer "Why Part P"?I don't believe that the ticks lists have any real merit and need a serious rethink. I'd be more in favour of a simple declaration that the works have been verified in accordance with the Standard and comply fully with it. This would not affect how the initial verification is carried out, but I think the paperwork is out of control.