Meter tails & Protection

[westward10]

Mechanical protection to meter tails or any cable is difficult to achieve as even the on site guide gives 3mm plate steel as an example but even this maybe insufficient against nail guns and the like
Not that your average home owner wields about a nail gun of course....,,,,,

I don't have an OSG but should this plate be earthed or is it just acting like armour. Can this suggestion be found in BS7671?

 

[Ian1981]

I don't have an OSG but should this plate be earthed or is it just acting like armour. Can this suggestion be found in BS7671?

It says nothing about earthing the plate.
I think if you did it would need soldering on as any other connection would need to be accessible for testing and inspection.
I think that an earth covering like that of armour of a swa ,it has to be acceptable as a cpc in its own right to be considered as earthed protection/containment.

 

[Ian1981]

I don't have an OSG but should this plate be earthed or is it just acting like armour. Can this suggestion be found in BS7671?

 

[Midwest]

View attachment 39511

I'll take that to bed with me tonight, I've been having trouble sleeping

 

[Ian1981]

I'll take that to bed with me tonight, I've been having trouble sleeping

Sweet dreams

 

[westward10]

So this little snippet is not in BS7671.

 

[Midwest]

So this little snippet is not in BS7671.

Might take that with me as well, really bad at the mo.

 

[Ian1981]

So this little snippet is not in BS7671.

No but it does mention regulations just above.
As far as I can see in bs 7671 it mentions mechanical protection for cables non rcd protected or out of zone but does not go into detail.....
Go figure so it’s all interpretation and guess work again why they can’t elaborate I do not know?

 

[Midwest]

I've got me OSG, BS7671, GN8 and a copy of Gardeners Weekly. Could be a long night

 

[Ian1981]

I've got me OSG, BS7671, GN8 and a copy of Gardeners Weekly. Could be a long night

I would add a copy of GS38 to the list to finish you off.
2mm tips or 4mm?
Oh the dilemma!!

 

[Midwest]

Is okay until the flipping milkman delivers the milk at 3. I mean what was wrong with a milk float. Friggin diesel truck now, I mean honestly.

 

[HandySparks]

So this little snippet is not in BS7671.

The OSG is just giving one option to comply with 522.6.204 (iv), 'mechanical protection against damage sufficient to prevent penetration of the cable by nails, screws and the like'. ie, if sufficiently robust, it doesn't need to be earthed metal.

 

[Leesparkykent]

PRODUCTS | TridentSections - http://www.tridentsections.co.uk/press/products/

This is the stuff...I order it through electric centre. My local branch now keeps a few lengths on the shelf.

 

[Des 56]

I don't know,whats with all this flimsy material,whatever happened to angle iron