confirmation of earthing conductor size

[Daveh36]

Hi Guys just a quick question but what the hell do I put in confirmation of earthing conductor size when the earth is the swa

 

[buzzlightyear]

Hi Guys just a quick question but what the hell do I put in confirmation of earthing conductor size when the earth is the swa

what are you doing ?testing .http://www.earthingnuts.co.uk/pdf/pvc_xlpe.pdf

 

[Pete999]

Hi Guys just a quick question but what the hell do I put in confirmation of earthing conductor size when the earth is the swa

Refer to the Table Buzz has provided

 

[Daveh36]

I've already checked the table but it's not the csa I'm after which option on ecr do I put pass/na/nv etc

 

[Pete999]

I've already checked the table but it's not the csa I'm after which option on ecr do I put pass/na/nv etc

Your first post IS referring to cpc size isn't it?

 

[Pete999]

I've already checked the table but it's not the csa I'm after which option on ecr do I put pass/na/nv etc

refer to the chart it will give the size equiv to CU

 

[Pete999]

I've already checked the table but it's not the csa I'm after which option on ecr do I put pass/na/nv etc

No just the equiv SWA size compared to CU

 

[westward10]

How can the armour be your earthing conductor. I assume this is a submain and the armour is not the source earthing conductor.

 

[buzzlightyear]

I've already checked the table but it's not the csa I'm after which option on ecr do I put pass/na/nv etc

please elaborate.. what are you doing ?

 

[buzzlightyear]

have the op gone off the boil ,because if pops on tell me. I will be in the kitchen making a cup of rosy lee . and will grab a couple of biscuits this going to be a long night .

 

[Daveh36]

I'm filling out an EICR on a landlord supply there is a small consumer unit fed by 25mm 2 cire swa from an isolator which is fed from 25mm tails from a meter with a 16mm earth my question is how can I confirm the conductor size to the consumer unit when it is swa

 

[westward10]

It is a cpc then.

 

[buzzlightyear]

post 2#

 

[westward10]

If your earthing system is TN-C-S then the armour is inadequate to support main protective bonding.

 

[Ian1981]

Use table 54.7 of bs7671.
Or the Adiabatic equation for CSA of armouring for use as the cpc

 

[Ian1981]

You getting your post count up Buzz?

 

[buzzlightyear]

You getting your post count up Buzz

I want to be a forum mentalist like you ian 1981 i have been a bad boy in the past .I have turn over the bed sheet .

 

[buzzlightyear]

I have now started to go to church and go to the sort my sins out .
but the devil is still in side me waiting to get out .