C

chris-leeds

Hi. By trade I'm a qualified mechanical maintenance engineer with 30 years experience and recently I've been trying to diversify in order to gain not only new, but continual employment.

Over the last couple of years I've passed the nebosh health & safety qualification, the city & guilds 2377 pat testing qualification and recently the city & guilds 2382 17th edition qualification. This week I took the city & guilds 2392 inspection & testing examination after completing the course. I passed the online Gola exam but failed miserably with the practical. I'm annoyed at failing the practical exam, but not as annoyed as I am at what is happening in this country when it comes to securing employment.

These days to be a mechanical maintenance engineer you have to be all things to everybody. You're required to have qualifications and experience of much more than was required of you 20 or 30 years ago. People like myself in their late 40's are having to go out and learn new skills and obtain diverse qualifications or resign themselves to the scrap heap. Gone are the days when we all stuck to our own disciplines, we’re now expected to be multi-skilled, work overtime for single time pay and be on 24 hour call out.

It's not surprising that I failed the 2392 practical because as to date, I have pretty much no knowledge of electrical installations, yet I've taken a course that covers testing your own installations, I'm the first to question the logic in that, but I don't have the time to go on a 2330 course and there are limited options available to people like myself at this time of life with regards to learning new skills.

I know that in a factory environment like I'm used to there is very little need for single phase domestic qualifications, but I guess they're better than none.

I'm determined to pass the 2392 practical exam and then consider scrambling my brain with the 2391 course if I have to. The Part P course is an option I guess, but the cost of that has jumped up at some places to around a £1000 and I don't know how much that course would benefit me. If anyone can advise me it would be much appreciated.

I've even recently completed a night class welding course as well for what it's worth.

I don't think that there are many more courses to be had, and with all those qualifications they aren't worth much without the experience, a kind of chicken and egg situation. I've been considering looking for work as an electricians mate, but I have to question the wisdom of that move for someone in their 40's.

.... Is there anything out there such as a step by step guide to the testing sequence in detail of the 2392 practical exam? Written as if you were talking someone through it... I think the best description is a crib list? Any help would be much appreciated.

Experienced sparks needn't worry that I'm going to let myself loose out there, all I'm hoping for is extra qualifications to secure a job. I’m the first to agree with the requirements of the terms skilled, instructed, an ordinary person.

I am considering out of desperation becoming a freelance health & safety officer and the electrical qualifications would help me to pass comment on some aspects of visited companies’ electrical testing & inspection compliance, which is something I’m guessing not many H&S inspectors have.

Thanks for reading. And best of luck with your employment.
 
I didnt answer this question as part of my 2392 practical..I can jus about remember it, i wasnt sure how to do it, any help would be appreacited..thanks

A consumer asked to install a heater in a conservatory.

3kw Heater
Length of Cable 25m

Design the circuit.

1. Cable Size =
2. Fuse Size =
3. R1 + R2 Value =
4. Zs Value =
5. Volt drop =
6. Maximum Demand =
7. PFC

Also, Rule of thumb, does it apply or not?
 
I havent done the 2392-10 yet. But I am going on the course in June.

Had a look through me books and tried to work it out for you.
As I havent had any experience Im sure some of this will be wrong so if any is please feel free to correct.



1.Cable Size - 1.5MM (P131 OSG) 1.5mm can hold 16.5A. As 13.04A is Ib This is the cable I would use. (ref method B - Trunking)

2.Fuse Size - 16A Type B CB to BS EN 60898 (Can hold the Ib 13.04A)

3.R1+R2 - Less than or equal to if TN-C-S - 2.52 (Ze Max 0.35 +R1+R2 2.52 = Max Zs - 2.87)

4.Zs Value - 2.87 (P49 BS7671)

5.Volt Drop - VD= (mV/A/m) X Ib X L /1000
VD = 29 X 13.04 X 25 / 1000
VD = 9.45V

5% allowable for Power, as 5% is 11.5V and your VD is 9.45V the circuit is within safe parameters.


Max Demand - 13.04A (As I read it OSG p97 Table 1B-8 No diversity allowable?)

PFC - .657kA (230V/Ze 0.35)/1000



Wrong or Right this is the answer I would have given.
;)
Wallicio
 
I havent done the 2392-10 yet. But I am going on the course in June.

Had a look through me books and tried to work it out for you.
As I havent had any experience Im sure some of this will be wrong so if any is please feel free to correct.



1.Cable Size - 1.5MM (P131 OSG) 1.5mm can hold 16.5A. As 13.04A is Ib This is the cable I would use. (ref method B - Trunking)

2.Fuse Size - 16A Type B CB to BS EN 60898 (Can hold the Ib 13.04A)

3.R1+R2 - Less than or equal to if TN-C-S - 2.52 (Ze Max 0.35 +R1+R2 2.52 = Max Zs - 2.87)

it's just asked for your R1 + R2 value so the earthing system is irrelvant ie TN or TT. If you chose 1.5/1.0 T + E then your R1 + R2 will be the resitivity of the cable from OSG Table 9A X length of the run X temp factor / 1000. So that is 30.20 X 25 x 1.2 / 1000 = 0.906 ohms

4.Zs Value - 2.87 (P49 BS7671)


5.Volt Drop - VD= (mV/A/m) X Ib X L /1000
VD = 29 X 13.04 X 25 / 1000
VD = 9.45V

5% allowable for Power, as 5% is 11.5V and your VD is 9.45V the circuit is within safe parameters.


Max Demand - 13.04A (As I read it OSG p97 Table 1B-8 No diversity allowable?)

PFC - .657kA (230V/Ze 0.35)/1000



Wrong or Right this is the answer I would have given.
;)
Wallicio

I think he must have missed the Ze off the question as in an exam they would give you this, and not rely on your guessing the value for a TNC-S, which I assume you guessed as it don't mention it at all
 
I went with the max value as your right it did not state and didnt know how to work out but thanks to you I do now.

Thankyou so much for a very usefull reply

Wallicio.
Happy days!
 

Similar threads

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electric Underfloor Heating Electrician Courses Heating 2 Go Electrician Workwear Supplier
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Advert

Daily, weekly or monthly email

Thread Information

Title
City & Guilds 2392 Practical Exam
Prefix
N/A
Forum
Australia
Start date
Last reply date
Replies
23
Unsolved
--

Advert

Thread statistics

Created
chris-leeds,
Last reply from
wallicio,
Replies
23
Views
18,669

Advert