Qs on assessment day ??

[james king]

can any one give me sum examples of the king of questions they will ask me.???

eg why do zs test things like that???

 

[MarcT]

When I did the practical, there were three different mock-up boards. One one you had to do all the standard tests, on the second you had to do the visual, and on the third they would tell you that there were 12 faults and you had to list them all. some of the less obvious ones were bend radius of cables, using one clip for two flat cables side by side, that sort of thing.

In the written exam, they might ask why the value of PSCC is important when selecting a protective device
what is the breaking capacity of a 3036 fuse, and what a ring continuity test can actually tell you about the circuit itself apart from R1+R2.

A lot of us found that we already knew the answers but had forgotten them over time and this was a handy refresher.

hope this helps

 

[james king]

When I did the practical, there were three different mock-up boards. One one you had to do all the standard tests, on the second you had to do the visual, and on the third they would tell you that there were 12 faults and you had to list them all. some of the less obvious ones were bend radius of cables, using one clip for two flat cables side by side, that sort of thing.

In the written exam, they might ask why the value of PSCC is important when selecting a protective device
what is the breaking capacity of a 3036 fuse, and what a ring continuity test can actually tell you about the circuit itself apart from R1+R2.

A lot of us found that we already knew the answers but had forgotten them over time and this was a handy refresher.

hope this helps

sorry did not make my self clear i ment a assessment by a nic eic - napit or elecsa lol

 

[monkeyelectric]

can any one give me sum examples of the king of questions they will ask me.???

eg why do zs test things like that???

Have you any biscuits to go with my tea? Is that motorbike a ktm? my assessor was very laid back and the worrying i did for weeks before was for no reason, he just asked things about the regs which you could look in the book for, what do you check for before you alter a circuit or add a circuit just things like that, he's not looking to catch you out but just wants to know you're competent

 

[MarcT]

On assessment day, once we had gone through all the admin stuff. the questions were site specific.
All the RCD tests I had performed, how i calculated Zs, what provisions I had taken for circuits that were not on an RCD, maximum trip times. it was all standard stuff really.

 

[james king]

ok so x1 rcd half and ful cycle and x5 full and half, Zs= Ze+(r1+r2). rcd test times = either 0.4 or 0.2secs is that how u would asnwer it or in more detail

 

[MarcT]

yeah those sort of answers, except the RCD operating times. I got caught out there and said 200mS for all of them, which in practice is probably what a lot of us assume. however the operating times are:

RCD's to 4293 = 200mS
RCD's to 61008 = 300mS
RCBO's to 61009 = 300mS
'S' type RCD's = 130 - 500mS
RCD sockets = 200mS

more details on GN3 p.56

If you get asked to do a live test on the day, remember you're the duty holder then, inform responsible person etc etc.

 

[james king]

yes that is correct cheers mate.

any other questions they may ask???? all the question will be better as many as possible

thanks
.

 

[MarcT]

If you have installed any circuits where you needed to work out the size of the cable i.e a long cable run outside , they may want see the calculations you made. It's not a pass fail thing anyway, If there are no observations at all then you'll get an A. If they find something you need to improve on you'll get B and so on.

 

[james king]

the job i am showing him is a flat re wire so not really any long cable runs. yes but there must be a point at witch they fail you. would they ask for tail lenghts that i brought feed into CU from down stairs

 

[monkeyelectric]

the job i am showing him is a flat re wire so not really any long cable runs. yes but there must be a point at witch they fail you. would they ask for tail lenghts that i brought feed into CU from down stairs

Did you put a switch fuse at the start of the tails?

 

[james king]

yes it can all be isolated

 

[AA410]

I know how you feel i have my second asesement in a couple of weeks is that much diffrent to the first

 

[monkeyelectric]

yes it can all be isolated

Is it fused, smaller than the main fuse?

 

[james king]

Is it fused, smaller than the main fuse?

Yes I think its on a 80a isolting fuse. Main fuse may be 100 not 100@er cent sure?

Yes I think its on a 80a isolting fuse. Main fuse may be 100 not 100@er cent sure?

in fact i just looked at note and yes it is a 80a switch being feed from 100a main incommer???

how come?

 

[MarcT]

yes there it a point at which they become concerned, anything that shows a serious failing in understanding rather than just an oversight.
In a domestic property I was asked to measure the distance between the floor and the skirt of the battenholder to confirm it was in zone 2. i was also asked to take the cover off the fan to prove it had a suitable IP rating for zone 1. My assessor was concerned that i was adding R1+R2 to Ze to Get Zs, Where as my course tutor said this was ok. So alot of the depth of the assessment will depend upon the temperement of the guy who visits.
For a flat rewire I would likely guess that you would get asked what circuits you had used, what methods of basic, fault and additional protection you have used, extraction rates if there is a fan, have you made good any fire barriers with regards to downlights, cable routes etc, your main bonding, if you used 10mm on a TN-S system you might get asked why you chose 10mm when you might have been able to use 6mm.
You will be asked to do a sample test which could be anything from RCD to ring continuity and there will be a few test questions.

 

[james king]

yes there it a point at which they become concerned, anything that shows a serious failing in understanding rather than just an oversight.
In a domestic property I was asked to measure the distance between the floor and the skirt of the battenholder to confirm it was in zone 2. i was also asked to take the cover off the fan to prove it had a suitable IP rating for zone 1. My assessor was concerned that i was adding R1+R2 to Ze to Get Zs, Where as my course tutor said this was ok. So alot of the depth of the assessment will depend upon the temperement of the guy who visits.
For a flat rewire I would likely guess that you would get asked what circuits you had used, what methods of basic, fault and additional protection you have used, extraction rates if there is a fan, have you made good any fire barriers with regards to downlights, cable routes etc, your main bonding, if you used 10mm on a TN-S system you might get asked why you chose 10mm when you might have been able to use 6mm.
You will be asked to do a sample test which could be anything from RCD to ring continuity and there will be a few test questions.

i am sure u can add ze+(r1+r2) for Zs. the system is tncs . as regards to down lights i have cutt holes in the insulation for fire purposes, no fan fitted all eathed water pipes using 10mm earthing cable. with clamps. fault protection is automatic dissconection of supply !!! hope that is ok also has 16mm tails to CU. y did u say thy would be concerned?

 

[MarcT]

It doesn't sound as though you have anything to worry about. When is your assessment?

 

[james king]

It doesn't sound as though you have anything to worry about. When is your assessment?

it is next week i payed to have it quicker. because i wanted to do it while flat was empty so i can go in take all bulbs out ect. i hop eit will be ok. the whole flat has a fire barrier cuz the fire ppl had to come and do it.

why were people qustioning the fuse rating? just wondering

cheers

 

[steviesparks]

Hi James, did you inquire as to tails csa with distributor? As I would of used 25mm csa. When you say fuse on tails, do you mean main switch or distribution co isolator? Just interested. I had this conversation on this site a few days ago about keeping the assessment simple, as I'm just going for a notifiable garden rcd protected socket and a non-notifiable new pir light and thats it. So I think your brave going for a full re-wire.

 

[james king]

Hi James, did you inquire as to tails csa with distributor? As I would of used 25mm csa. When you say fuse on tails, do you mean main switch or distribution co isolator? Just interested. I had this conversation on this site a few days ago about keeping the assessment simple, as I'm just going for a notifiable garden rcd protected socket and a non-notifiable new pir light and thats it. So I think your brave going for a full re-wire.

o really ummmm i was told i needed at least 2 new circuits from CU eg lighting and sockets. i have a garage re wire well about 3 of them for him to see. he said the flat is perfect he only wants one job and told me it will al take 2hours

as for the pir light- u have to show him certs u have tested, so u will need to test the full lighting circut on a minnor works cert i dont personaly think that is enuf for him to see but good luck any way.

no some one said is the fuse smaller than the main fuse i just wondered why he said that .