List of test...

[Sparky12021986]

hey everybody just need clarification to a question i think i got the right answer so here goes....

Q. List in the correct sequence the tests required for an installation to comply with BS 7671.

A. Continuity test
A. Insulation resistance test
A. Polarity test
A. Earth fault loop impedance
A. PSCC and PEFC if not determined by enquiry of the distributor.
A. Functional testing including, testing of RCD's and operation of all switchgear.

 

[i=p/u]

earth electrode/ze is missing between a and a

 

[supasparxs]

Visual inspection should also be before any of thoses

 

[Sparky12021986]

earth electrode/ze is missing between a and a

sorry there should of explained a bit better but i dont need an earth electrode test done as that is only required for TT systems i am working with TN systems so all is needed is a Earth Fault Loop Impedance test..

 

[Sparky12021986]

Visual inspection should also be before any of thoses

thanks just added it to my list...

 

[i=p/u]

your pretty dam close..

 

[Sparky12021986]

your pretty dam close..

ok so if i am pretty dam close as you put it what else am i missing...

 

[malcolmsanford]

do I have to get my coat ............................phase rotation ..................sorry gather it was single phase

 

[Sparky12021986]

do I have to get my coat ............................phase rotation ..................sorry gather it was single phase

yes it is single phase..

 

[i=p/u]

you just writting earth fault loop impediance, doesnt buy it for me, plus, ring final circuit conductors, and if was new install would differ from exisiting,

 

[Sparky12021986]

you just writting earth fault loop impediance, doesnt buy it for me, plus, ring final circuit conductors, and if was new install would differ from exisiting,

ring final circuit conductors comes under the same test as continuity, continiuty of conductors are to include protective conductors including main and supplementary bonding conductors, also ring final circuit conductors including protective conductors..

 

[JUD]

Visual inspection should also be before any of thoses

I wouldn't count visual inspection in the sequence of tests. They are completely seperate, hence why they call it Inspection AND Testing.

Inspection is done using the senses. Testing is done using test equipment.

 

[i=p/u]

nah, there seperate tests and if you look at the lists in most books there separate, all depends on what level you doing this... but your pretty dam close

 

[Sparky12021986]

nah, there seperate tests and if you look at the lists in most books there separate, all depends on what level you doing this... but your pretty dam close

On site guide chapter 9 page 75

9.3.1 Testing checklist...

Please read..

 

[i=p/u]

im getting proximity to electrical and other services,,, you wouldnt be using he book too older regs, hahah

your right to the on site guide, but this opens up completely when your a man, and what about vold drop..

your pretty dam close tho

ok your pretty much right

 

[Sparky12021986]

im getting proximity to electrical and other services,,, you wouldnt be using he book too older regs, hahah

your right to the on site guide, but this opens up completely when your a man, and what about vold drop..

your pretty dam close tho

ok your pretty much right

Thank you that is all i wanted to know was that i was right or wrong..

 

[Deleted member 26818]

If this is for an exam, then realy you should have two tests for continuity.
One for continuity of CPCs and bonding conductors.
The other for continuity of RFC conductors.

 

[i=p/u]

i reckon he is on level 2 first year or second year.. just a guess mind you

 

[JUD]

Dead Tests
Continuity of protective conductors (including main and supplementary bonding)
Continuity of Ring Final Circuit conductors
Insulation Resistance
Polarity (can be done while carrying out continuity of cpcs)

Live Tests
External Earth Fault Loop Impedance (Ze)
Prospective Fault Current (PEFC & PSCC)
Earth Fault Loop Impedance (Zs)
Functional Tests

 

[GLENNSPARK]

and verefication of polarity should be before IR....as polarity is one of the outcomes of continuity (R1 R2 Rn).......

 

[Geordie Spark]

and verefication of polarity should be before IR....as polarity is one of the outcomes of continuity (R1 R2 Rn).......

Now yer just showin' off !!! :book:

 

[GLENNSPARK]

youv got a PM paul...

 

[stephen1974]

The onsight guide refers to relevent tests. Under what circumstances wouldnt you have to perfome any of the tests mentioned?

 

[Guest123]

CRIPPLER.:biggrin:

 

[Guest111]

The onsight guide refers to relevent tests. Under what circumstances wouldnt you have to perfome any of the tests mentioned?

Well I shouldn,t think you would perform ring continuity tests on radials.