general query about the 2391

[bobby101]

when doing the Ze test on the single phase board how do avoid the parrallel paths via the three phase board

 

[ian.settle1]

when doing the Ze test on the single phase board how do avoid the parrallel paths via the three phase board

Do you mean a single phase DB supplied from a 3 phase DB?

 

[GStueyXR]

Ze can only be taken at the origin with the earting coductor disconnected.

 

[iceman]

with the supply isolated disconnect main earthing conductor from met at single phase board and record result as Ze on schedule of test results for single phase board

 

[GStueyXR]

with the supply isolated disconnect main earthing conductor from met at single phase board and record result as Ze on schedule of test results for single phase board

That would be Zdb would it not ?

 

[ian.settle1]

That would be Zdb would it not ?

Or is it Zs for that circuit off the 3 phase board

But test sheets don't have a Zdb box only a Ze box

 

[sparky2002]

I just failed miserably on the practical today. Only myself to blame.However I was led to believe all testing would be done on the main rig...... wrong.
I started filling out the 12 observed faults on the answer paper.........wrong, the cover was off the c/unit so how could I note a lack of danger notices, the cracked ceiling rose I was told was not a fault, the conductor that popped out of its terminal the moment I handled the switchplate was also not apparently supposed to be a fault there was no cord grip on the flex pendant in the ceiling rose, that's in addition to the moulded strain pillars in the base of the c/rose, never heard of them before neither has anyone else apparently.... by now I'm losing confidence.
It gets worse by the time I move to the main rig which has dimmer switch that falls apart as soon as I try to disconnect it.
The MICC is disconnected in the d/b because the crimp termination in the pot at the connection unit is faulty, a verbal reading for R1+R2 is given to me. The contactor cover has no fixing screws it is only held in place by the isolator after removing this I have great difficulty in replacing because the isolator doesn't clip correctly to the DIN rail. I have to remove conductors to link together for the continuity test and find it almost impossible to replace the conductors feeding the socket. Screws are missing all over the place, the consumer unit has none. The wiring in both the units is awful, nearly all conductors need restripping and terminating. The linking wire provided needs repairing when the tiny and I mean tiny croc screw falls out on the floor, took ages to find. The tools provided are s... screwdrivers need sharpening,all terminal screwheads are damaged it's a nightmare disconnecting anything and then reconnecting.
I could go on, I probably have, too much that is!
So next time ( which will be at a different centre) I take my own toolkit and meters. Like I say I can't blame anybody but myself but this rig was in apalling condition.

 

[GStueyXR]

I would complain to C&G about the quality of the centres Rig.....

 

[sparky2002]

I would complain to C&G about the quality of the centres Rig.....

I have to complain in writing to my local centre first before C&G will intervene. I'm a bit worried this might cause me probs if... big IF I go back there.

 

[Mr.Black]

I've been to colleges in Scotland,England and Australia.All the materials,tools and equipment are pretty much of the same standard i'm afraid.The budgets don't stretch too far.

Best thing to do is talk your way through the test as your doing it.i.e.Tell him what your doing and why,what sort of test results you should expect and whats wrong if you don't get the results.

That way at least your demonstrating your technical knowledge and ability and that is pretty much what their looking for.

If there is terminal screws missing tell them,if the lugs are rounded-tell them,if the cables are now too short to terminate-tell them,if its dangerous to turn a circuit on-tell them why.

Does any of this make any sense?

Anyone agree?

 

[bobby101]

hi sparky2002 sorry to hear about your experience but could you tell me what test centre did you attend

 

[GStueyXR]

I've been to colleges in Scotland,England and Australia.All the materials,tools and equipment are pretty much of the same standard i'm afraid.The budgets don't stretch too far.

Best thing to do is talk your way through the test as your doing it.i.e.Tell him what your doing and why,what sort of test results you should expect and whats wrong if you don't get the results.

That way at least your demonstrating your technical knowledge and ability and that is pretty much what their looking for.

If there is terminal screws missing tell them,if the lugs are rounded-tell them,if the cables are now too short to terminate-tell them,if its dangerous to turn a circuit on-tell them why.

Does any of this make any sense?

Anyone agree?

I agree mate. But surely it is the centre's responsibility to make sure the rig is to spec. That only the C&G specified faults exist. And that all terminations are in good order.