Earth Fault loop impedence results not matching up!!!

[Sparky Ninja]

Firstly, there are four warehouses here and from the schematics i have been looking over 8 distribution boards. Mainly three phase which i am not hugely familiar with. i work as an onsite electrician at festivals and events over the summer and install three phase systems on a temporary basis fed from generators around site but its a very different ball game altogether!

I would suspect that there wouldn't have been much training with regard to TP&N systems. I used to install the temporary supplies and manage the generators at Royal Ascot, it's definatley a different ball game.

Yes, thats exactly the course i went on and obtained these qualifications:

City & Guilds (2382) – 17th Edition IEE Wiring Regulations (Level 3)

Logic Full Scope Electrical Part P Scheme

City & Guilds (2392) Certificate in Fundamental Inspection and Testing and Initial Verification

Logic Certification Domestic Periodic Inspection and Testing Award​

It seems like a little collection of small courses, primarily domestic based.
A good solid footing for you, but if you plan on working in other sectors you may want to seek further training in the future as some employers may not recognise them yet.

And as far as post help is concerned i believe all i have is the numbers of my tutors to ring if i need a "chat" or some advice. i have done this once....

Well that's good

The course was good, but of the 8 of us in the group we ALL had issues with many aspects of it and certain phrases became increasingly irritating such as "you dont need to know that lads" or "just do it that way its good practise" with no further explanation. i was under the impression that if i was to pay the money they were asking for which was a lot!..than i am entitled to an answer if i want it no matter how in depth it might have been. i was often palmed off with "thats more then u need to know ben, or, dont worry about that for now just concentrate on this" etc. which really began to get on my wick. I think if i dont get going pretty quickly and start immersing myself in electrical work then a refresher course id exactly what i need to do before long.

That's very interesting. Eye opening and slightly disappointing. I suspect, from experience, that the training providers may not be too sharp on some of the technicalities.

I apologise if i caused any offense with my remarks concerning NICEIC its just what i have been told at face value. i think its simply the cost that puts me off NIC as they are £100 more then anyone else. I have heard great things about Napit but dont feel im anywhere near ready to be taking my 2391, for at least 6 months to a year anyway but am very keen to aquire that qualification. seems to open a lot of doors.

No offense here. I CANNOT stand the NICEIC anymore. I disagree with their ethics, their methods, their interpretation and their fees. IMO, Napit are better and Elecsa possibly even more so, going on the opinions of others here.

Regarding the 2391, there are so much constant discussions on this forum regarding the 2391. Wether it's advice for the course or sample questions (I'll be posting up the most recent questions in the week if it's not already done by then). I refer all my students their for them to get their mind working on that level, so to speak.

ive been very impressed actually with the forum and the guys in it, and really didnt expect the level of help ive been getting. im very grateful to say the least i shall be sticking around for some time here i think!

Glad to hear

If i had known my career in the police force was never going to happen and my degree would be worth no more than the paper its printed on to me, i would have gone for the apprentiship straight away when i finished college, and done this the proper way and got the experiance i needed as i went along over that period of time, but this was the only option available to me to obtain these qualifications, its just very difficult to try and apply a hugely limited knowledge to earning a living. we wernt even shown how to chase cable! so thats something im going to have to teach myself on someone else's wall... eeek. we didnt lift floor boards, we didnt lift carpet, we didnt really navigate cable etc etc, i think your getting the picture. i had my head stuck in the regs book for 3 weeks and did my part p for a week, then had exams, and wired in a few consumer units...despite being very practically capable anyway, my skills in this sector are grey to say the least!

More eye opening stuff, thanks for sharing.

Its daunting stuff, but i have to just attack it head on i suppose to keep it up and get that experiance.

Stick with us, you'll be fine

 

[wayne305]

Mate, you've done the right thing by asking. Everyone started somewhere. If your unsure about anything else, put it to the forum, and people will help you understand and overcome your problems.

 

[wade88]

Thanks lads I appreciate the support

 

[ezzzekiel]

testing takes time to learn and even longer to be able to interprit the results and identify faults - i advise a lot of study and maybe 2391 (not a prequisite for joining a scam by the way)

 

[jdtae]

Thanks for useful threads and it is very helpful and appreciate you all
Could anyone please help me to get my head round for the following questions?
1. If I extended a light from existing circuit I will need to carry out Zs test including other tests. Which Zs value I need to put on the installation cert as I would not know if the measured value is lower than other circuit?Should I measure all other circuit to find out which point is highest value and record it then ignore the value for the circuit that I have just installed?

Same question for a ring socket circuit
2. If I added a socket as a spur from existing circuit I will need to carry out Zs test including other tests. Which Zs value I need to put on the installation cert as I would not now if the measured value is lower than other circuit? Should I measure all other socket point to find out which point is highest value and record it and ignore the value for the spur socket that I have just installed?
JD

 

[morph]

i just read this thread with horror!
you are not qualified as you said , you are so out of your depth its untrue, i am now going to look at how much you were scammed for this course,
you are just about suitable to do a bit of house bashing at best, no offence but this is a joke surely, your company must have been desperate to take you on you dont have any experiance , good luck anyway

 

[morph]

|||£5875 and the only real qualifications you have are 2392 which is worthless and 2382 which cost about £300 ! , oh and a nice megger

 

[brucelee]

Thanks Widdler, that was a very helpful reply.

Firstly, there are four warehouses here and from the schematics i have been looking over 8 distribution boards. Mainly three phase which i am not hugely familiar with. i work as an onsite electrician at festivals and events over the summer and install three phase systems on a temporary basis fed from generators around site but its a very different ball game altogether!

Yes, thats exactly the course i went on and obtained these qualifications:

City & Guilds (2382) – 17th Edition IEE Wiring Regulations (Level 3)​

Logic Full Scope Electrical Part P Scheme​

City & Guilds (2392) Certificate in Fundamental Inspection and Testing and Initial Verification​

Logic Certification Domestic Periodic Inspection and Testing Award​

And as far as post help is concerned i believe all i have is the numbers of my tutors to ring if i need a "chat" or some advice. i have done this once....

The course was good, but of the 8 of us in the group we ALL had issues with many aspects of it and certain phrases became increasingly irritating such as "you dont need to know that lads" or "just do it that way its good practise" with no further explanation. i was under the impression that if i was to pay the money they were asking for which was a lot!..than i am entitled to an answer if i want it no matter how in depth it might have been. i was often palmed off with "thats more then u need to know ben, or, dont worry about that for now just concentrate on this" etc. which really began to get on my wick. I think if i dont get going pretty quickly and start immersing myself in electrical work then a refresher course id exactly what i need to do before long.

I apologise if i caused any offense with my remarks concerning NICEIC its just what i have been told at face value. i think its simply the cost that puts me off NIC as they are £100 more then anyone else. I have heard great things about Napit but dont feel im anywhere near ready to be taking my 2391, for at least 6 months to a year anyway but am very keen to aquire that qualification. seems to open a lot of doors.

ive been very impressed actually with the forum and the guys in it, and really didnt expect the level of help ive been getting. im very grateful to say the least i shall be sticking around for some time here i think!

If i had known my career in the police force was never going to happen and my degree would be worth no more than the paper its printed on to me, i would have gone for the apprentiship straight away when i finished college, and done this the proper way and got the experiance i needed as i went along over that period of time, but this was the only option available to me to obtain these qualifications, its just very difficult to try and apply a hugely limited knowledge to earning a living. we wernt even shown how to chase cable! so thats something im going to have to teach myself on someone else's wall... eeek. we didnt lift floor boards, we didnt lift carpet, we didnt really navigate cable etc etc, i think your getting the picture. i had my head stuck in the regs book for 3 weeks and did my part p for a week, then had exams, and wired in a few consumer units...despite being very practically capable anyway, my skills in this sector are grey to say the least!

Its daunting stuff, but i have to just attack it head on i suppose to keep it up and get that experiance.

Hi wade
I too did the same course but last year
I have been involved 24 yrs on and off but no quals and the privatly paid route was the only option to me also mate
yes its very rushed mate and they do say things like you dont need to know that they are just interested in getting you through the course and exams

the 2391 is not needed for registratio with Elecsa or the 2382-10 just knowledge and experience but you have to have the 2382-10 in the first year of registration before renewal date

but I have just done the 2391-10 at college 8 week evening course and passed even though i am not in the industry i was the only one not employed and possibly the only one who had not done a appreticeship or 2330 but out of 10 of us only 4 passed its all about how much effort you put in and what you are willing to learn,
It would be better to get on with a fully qualified spark but not many are willing to take anyone on
as experience is vital and you only learn from good sparkys that are willig to show you how to do the job properly from there years of experience

I Knew how to practically do the job but not all the theory and the testing ad like you the private route was my only option Good luck mate

 

[wade88]

You test from the furthest point in the circuit and record the highest value...but I'm sure one of the the lads will give you a better answer then that

 

[mcmainelectric]

it is amazing what can be learnt in 7 weeks, however these courses are designed for basic domestic installation only.
If i was you i would back off the commercial stuff as you clearly do not understand the contexts of the installation etc Think competancy, not qualification, because if someone does suffer a shock or a fire is caused then its you who will be facing manslaughter if you've not done something right, dont bluff do it right, i'm sure the companies insurers would not see you as a competant person on your work.
please learn to walk not run, would you want a 7week guy comming round your house/business and would you give a job to one

 

[mcmainelectric]

good luck anyway

 

[Sparky Ninja]

i just read this thread with horror!
you are not qualified as you said , you are so out of your depth its untrue, i am now going to look at how much you were scammed for this course,
you are just about suitable to do a bit of house bashing at best, no offence but this is a joke surely, your company must have been desperate to take you on you dont have any experiance , good luck anyway

|||£5875 and the only real qualifications you have are 2392 which is worthless and 2382 which cost about £300 ! , oh and a nice megger

Ever heard of tact?

This chap has recognised his limitations and wants constructive advise for him to progress in his career.
I blame 2 people for his position. His training provider for misinformation and his employer not necessarily recognising his current skillset.

This is an open forum but I feel that kicking a man when he's down isn't necessary.

 

[armbands0]

Somebody thought that you were right for the job and you seem to be going about it in a professional if a little confused manner. Those results certainly need checking, you've been given several pieces of advise already so build on what you know and patiently work through the tests, good luck.

 

[armbands0]

As an after thought perhaps the previous guy was unable to actually test the Ze because of operational needs(was not allowed to power down factory) and has quoted that as the DNO stated Ze figure for a TNCS.

If you measure the R1+R2 of a circuit, then that same circuits Zs, then you could calculate the Ze, Ze = Zs-(R1+R2) so that will give you an idea of the Ze value. I apologies if this has already been stated.

 

[wade88]

Thanks widdler for the support. I undertand my limitations entirely and will certainly not attempt to do anything I feel is out of my depth, and a bit of house bashing that was nicely put, is what I'm really looking to do for now to build on the skills I have and concrete hat knowledge I have. To be honest I think some wires have been crossed to some degree regarding what it is I do for my job...the electrical content is very minor as the majority of serious installs have been done. I have only done very minor works as of yet such as new sockets, a few radial circuits for heaters etc. I have already made my position clear on the three phase elements of the job but like I said that's all been installed previously. They just want me more as a go to guy for advice and minor installs. The rest of my job is jut organising maintenance schedules and inspections etc. Make sure machines are working correctly that kind of thing.

Thanks again tho guys for helping me out!