R2 measurement.

[Electricalserv]

Is there any other way to take this measurent apart from using a long lead????

 

[Apollo]

Link at one end and test at the other:

Use calculation from

(r1+rn)/2
(r1+r2)-above=R2

thats the way I would do it. That's if you needed that figure alone.

 

[SirKit Breaker]

Yes R1 + R2.

Switch off the breaker, connect line to earth on the circuit to test. Then at the accessory measure across line and earth (cpc) of the circuit, this way you confirm polarity as well as earth continuity, make sure you test at switches with them switched on. You then enter the result on your Schedule of tests in the R1+R2 box, and put a line through the R2 box. buy Guidance note 3, it explains everything you need to know about testing.

Cheers........Howard

 

[Sparky Ninja]

Is there any other way to take this measurent apart from using a long lead????

Rip the cable out from it's installation and bring the furthest point back to the consumer unit.

 

[Electricalserv]

Rip the cable out from it's installation and bring the furthest point back to the consumer unit.

Seriously I'm talking about bonding conductors etc..... Would the above methods be o.k?

 

[telectrix]

for bonding conductors, you don'r have R1 or Rn. so that's out the window. long lead is only way. i just have a part coil of 6mm gn/y. and use that, then deduct the resistance of the lead ( i use a low ohms meter without a null facility.)

 

[Apollo]

Seriously I'm talking about bonding conductors etc..... Would the above methods be o.k?

Ahhhh You didn't say that in your OP. Long lead the only way as said!!!!

 

[Electricalserv]

Sorry chaps!!!!

 

[Sparky Ninja]

How else can it be done??

 

[telectrix]

we all make mistakes, as the hedgehog said, climbing off the bog brush