completing Form 4 - Schedule of test results

[avinalarf]

If I've changed the consumer unit along with adding several new circuits, when I complete the above, do I still put original, untouched circuits on the form, even if I haven't done any tests on them, and just put dashes through the test results boxes?

Also, is it imperative to write the circuits down in sequential order, starting from the main switch?

Thank you.

 

[Apache]

Someone else will come along and help, I'm sure. But my understanding was when you change CU you must test all circuits as, by definition, you have worked on them all. Unless you have more than 1 CU (ecomomy 7?)

 

[steptoe]

would concur with Apache here,

as you have changed CU you have effectively changed all circuits, different protective devices etc.

you need to test ALL circuits,(on that board), all fill in all results.

YES, IMHO it is IMPERATIVE that all circuits are listed in sequential order, starting from main switch in a standard domestic CU, 3 ph is different.

 

[PAUL M]

If I've changed the consumer unit along with adding several new circuits, when I complete the above, do I still put original, untouched circuits on the form, even if I haven't done any tests on them, and just put dashes through the test results boxes?Also, is it imperative to write the circuits down in sequential order, starting from the main switch?

Thank you.

As stated by apache,when you do a cu change you must test all the circuits it is feeding

As for the sequential order of the circuits surely it is easier to put them in correct order than not and it makes life so much easier for everyone who works on the installation after you,dont you thinkGuiness DrinkGuiness Drink

 

[mikel]

Agree with steps there. You need to test all circuits and put the results on oyur schedule of test results. Also is better to list them in the order they are numbered on consumer unit. The man from niceic told me the same today

 

[stringy]

going off track slightly but when you guys install a new consumer unit do you put the largest mcb next to the main switch then work downwards on mcb size?

they told me that at college

sorry to hijack the thread lol

 

[mikel]

Not necessarily. Again another point I raised on my niceic assessment today and the assessor said you no longer have to put them in order of size. He did explain why as well

 

[stringy]

do tell then mikel

take it you passed your assesment then mate?

 

[mikel]

how did you guess, wish I could say it was a breeze but...... oh well all that matters is he said those immortal words 'I'm recommending that you've passed and are compliant with the requirements of the scheme' yippee even had a few Guiness Drink tonight

 

[a2]

Well done Mikel.

Have a few more Guiness DrinkGuiness DrinkGuiness Drink

 

[stringy]

congratulations mate

Guiness Drink

 

[SPECIAL LOCATION]

going off track slightly but when you guys install a new consumer unit do you put the largest mcb next to the main switch then work downwards on mcb size?they told me that at college

sorry to hijack the thread lol

With a 17th compliant high integrity Cu..

with a couple of RCDs and maybe with some RCBO's as well

it is no longer just a straight run from main switch...

I do out of have tend to put my MCB's RCBO's in a descending sequential rating order..

This goes back to the old wylex type CU's with push in blade fuse holders..

the two nearer the main switch were of a high quality contact thus better for larger fuse ratings.

Modern CU bus-bars are of a consistent quality though out their Length!

 

[avinalarf]

Thanks everyone - admittedly, there was only 1 circuit which I hadn't tested, but shall do so tomorrow.

Not necessarily. Again another point I raised on my niceic assessment today and the assessor said you no longer have to put them in order of size. He did explain why as well

Congratulations Mike Applaud Smiley Are you going to tell us why you don't have to put the breakers in order of size then? Or have you celebrated a bit too much to be bothered? Guiness DrinkGuiness DrinkGuiness Drink

 

[SPECIAL LOCATION]

how did you guess, wish I could say it was a breeze but...... oh well all that matters is he said those immortal words 'I'm recommending that you've passed and are compliant with the requirements of the scheme' yippee even had a few Guiness Drink tonight

Good one M8!

Applaud SmileyApplaud SmileyApplaud SmileyApplaud Smiley

Guiness DrinkGuiness DrinkGuiness DrinkGuiness Drink

 

[Apache]

how did you guess, wish I could say it was a breeze but...... oh well all that matters is he said those immortal words 'I'm recommending that you've passed and are compliant with the requirements of the scheme' yippee even had a few Guiness Drink tonight

Well done

 

[stringy]

With a 17th compliant high integrity Cu..with a couple of RCDs and maybe with some RCBO's as well

it is no longer just a straight run from main switch...

I do out of have tend to put my MCB's RCBO's in a descending sequential rating order..

This goes back to the old wylex type CU's with push in blade fuse holders..

the two nearer the main switch were of a high quality contact thus better for larger fuse ratings.

Modern CU bus-bars are of a consistent quality though out their Length!

cheers special

i havent done a 17th unit as yet, my boss allways gets us to fit single rcbo's, which are good but a pain in the **** to get neat and tidy

 

[avinalarf]

would concur with Apache here,as you have changed CU you have effectively changed all circuits, different protective devices etc.

you need to test ALL circuits,(on that board), all fill in all results.

YES, IMHO it is IMPERATIVE that all circuits are listed in sequential order, starting from main switch in a standard domestic CU, 3 ph is different.

Steps, do you just start the numbering at the first circuit after the main switch and continue to the very last, or do you re-start the numbering after each RCD?

IE:

Main switch - 100A

RCBO - smokes - 6A

RCD1 - 30mA

Hob - 40A

down lights ...

RCD 2 - 30mA

I'm sure you get what I'm trying to ask

 

[steptoe]

yep,

I number continually, ie, a 12 way split way board is still numbered 1-12, personally I omit the RCDs, switches etc, but I know some people put them in for some unknown reason,.

sometimes this will necessitate you renumbering the supplied labels, but I think its better to keep everything in a sequence, esp if you are on the phone trying to explain to customer how to re-set circuit number 2, when you may have 3 circuit number 2's,,,, (if you get me?!)

 

[avinalarf]

yep, I number continually, ie, a 12 way split way board is still numbered 1-12, personally I omit the RCDs, switches etc, but I know some people put them in for some unknown reason,.

Maybe that's 'cos it's written that way on the example form in the 17th OSG!

sometimes this will necessitate you renumbering the supplied labels, but I think its better to keep everything in a sequence, esp if you are on the phone trying to explain to customer how to re-set circuit number 2, when you may have 3 circuit number 2's,,,, (if you get me?!)

I certainly do gets ya ?:| Forgot to ask tho...do you number the spareways for clarification on the test sheet and just dash through the results boxes, or omit them?

Many thanks.

 

[SPECIAL LOCATION]

yep, I number continually, ie, a 12 way split way board is still numbered 1-12, personally I omit the RCDs, switches etc, but I know some people put them in for some unknown reason,.

sometimes this will necessitate you renumbering the supplied labels, but I think its better to keep everything in a sequence, esp if you are on the phone trying to explain to customer how to re-set circuit number 2, when you may have 3 circuit number 2's,,,, (if you get me?!)

I generally leave a blank line to mark where an RCD exists on a split load board..

can make it easier to pick out the groups of MCB's either side of an RCD..

e.g. five or six circuits.. blank line (may put comment e.g. RCD#2 protected circuits in this line.)

then next group of five or six circuits! So a new 17th ed High integrity board may read..

3x lines of circuits.

1x blank.

5x lines of circuits.

1x blank.

5x lines of circuits.

(obviously with suitable numbering as Steptoe said! )

can just make the schedule or test results easier to read IMHO? ?:|