Part P Assessment

[mpfisher@hotmai]

Hello Boys.
I had my assessment with Elecsa and i'm pleased to say I passed! Just thought I'd let you know the questions "he" asked me, so they may help anyone else taking the test.

1 How do you tell it's a TNC-S system?
2 What's the max Ze permitted for a TNC-S system?
3 What's the max Ze permitted for a TNS system?
4 Explain how to test a ring circuit and what results you should expect to get?
5 Where are the safe zones?
6 What depth (%) vertically can you chase a wall?
7 what depth (%) horizontally can you chase a wall?
8 What size hole (%) can you drill a floor joist and how far from top and bottam must it be?
9 On a new build what % of the lighting should be low energy?
10 What is the height requirements on a new build for switches and sockets?

Hope it helps some of you

Mark

 

[Cirrus]

Nice and useful Mark. Does anyone fancy filling in the answers??

 

[sparkyork]

on no.4 on ring circuit test. ive wondered this me self like is the inspector gonna want me to do a figure of eight test or just test ring continuity on line, neatral, and earth at the consumer unit, expecting line and neutral to be the same and earth to be 1.67 times greater?

rich

 

[greekislandlover]

But you also have to prove each socket is correctly connected, get the highest Zs and perform RCD checks as well as the dead checks of continuity and IR.

 

[sparkyork]

thats what im meaning are the gonna want it linking up figure of eight style and readings taken at each outlet, or do they want end of ring testing and just standard Zs test at each socket outlet, obviously ir and rcd aswell

 

[Shakey]

thats what im meaning are the gonna want it linking up figure of eight style and readings taken at each outlet, or do they want end of ring testing and just standard Zs test at each socket outlet, obviously ir and rcd aswell

well a ring test is all three stages: end to ends, and the cross connects

if he wanted stage 1 only, then what would be the end to ends

 

[mpfisher@hotmai]

Boys..... number 4 like some of you said its the figure of 8 test "he's" lookin for and also the ring bridge test like shakey mentioned......

The guy from elecsa seemed a working class bloke and not a university type and he just wants to know you have an idea and not a total plantpot!....... it's really not that bad...... elecsa the future i say!!!!

And boys back to number 4 if i may............... he asked me to explain the test....but not actually do the test......so that made it easier........

 

[sparkyork]

forgive me if im wrong but is the figure of eight test not infact the bridge test?,or is that what you have said and ive miss interprated it! sorry if i have! lol
where you connect L1 - N2 and L2 - N1 and go round all the socket outlets and provided all outlets are within 0.05 ohms then theres no bridge in the circuit? then tested in the same manor for the cpc? what is the definitive ring test procedures 1 - 3

 

[mpfisher@hotmai]

Sparkyork hello mate.
1. End to end tests on line neutral and cpc
2.Cross connect opposite ends of line and neutral(figure of 8) and test at each socket and the results should be substantially the same (bridge test)
3. Cross connect line and cpc and test (figure of 8) (R1+R2)

Hope this helps

Mark

 

[greekislandlover]

Looking through the list, can any of us answer all of them from memory?? In my case I'd have a mental blank on 6,7 and 8. I KNOW there are regulations that apply for these items, but I would have to look them up. OSG, regs and GN3 live in the van for this purpose.

I think that most of us should be able to get through the majority of the list by knowing it, or being able to convince the examiner we aren't a "Plant pot", but how would they take to the reply of "Sorry mate - I just look it up in the OSG as and when I need to know that?" - which after all is a truthful answer, and the reason it's called an on site guide and supposed to be with you on site for that purpose?

 

[mpfisher@hotmai]

Looking through the list, can any of us answer all of them from memory?? In my case I'd have a mental blank on 6,7 and 8. I KNOW there are regulations that apply for these items, but I would have to look them up. OSG, regs and GN3 live in the van for this purpose.

I think that most of us should be able to get through the majority of the list by knowing it, or being able to convince the examiner we aren't a "Plant pot", but how would they take to the reply of "Sorry mate - I just look it up in the OSG as and when I need to know that?" - which after all is a truthful answer, and the reason it's called an on site guide and supposed to be with you on site for that purpose?

Hello........
No 7. i didn't know the answer off the top of my head and told him that, so he asked me to make a guess. Which was wrong by the way. But now i know and that is what the assesment is about.

It's 1/6th or 16.66 % of the width of the wall

 

[adasadas]

Congrats on the Elecsa pass; I have my assessment in a month - am doing the 17th edition C&G in a couple of weeks.

Errm....where ARE the safe zones?

Thanks

 

[ccrowe]

where ARE the safe zones?

522.6.6 in the Red Book for the Reg. Page 53 of the current OSG, or page 28 of the Electrician's Guide, for the picture.

9 On a new build what % of the lighting should be low energy?

This is under Part L and I'm not sure there is a percentage. Table 10.6 (page 127) of the Electrician's Guide gives a recommended number of low energy lights vs number of rooms created but no mention of percentages.

 

[mpfisher@hotmai]

522.6.6 in the Red Book for the Reg. Page 53 of the current OSG, or page 28 of the Electrician's Guide, for the picture.



This is under Part L and I'm not sure there is a percentage. Table 10.6 (page 127) of the Electrician's Guide gives a recommended number of low energy lights vs number of rooms created but no mention of percentages.

25% of light fittings should be low energy but this only applies to new builds

 

[Lastie]

Hi Mark,
What was the name of your assessor please? I've got mine on Monday!!! Very nervous!!! Cheers.