Meter tails >3 metres in length

[andrew8902]

Hi

Has anybody ever found where this "rule has come from"? In the NAPIT codebreakers book it quotes "ESQCR regs" but it is not actually written in there. If it is a DNO rule then it comes under their regs (ESQCR), but as I said, it is not in there....

 

[Flanders]

I believe is DNO rules but not written in stone

 

[D Skelton]

It's not a regulation, nor a statutory requirement, don't worry about it. NAPIT can go swivel.

 

[DPG]

I think different DNOs sometimes have slightly different requirements, but the 3M rule is a good rule of thumb and should ensure compliance.

 

[D Skelton]

I think different DNOs sometimes have slightly different requirements, but the 3M rule is a good rule of thumb and should ensure compliance.

Compliance with what?

 

[DPG]

Compliance with what?

DNO requirements

 

[Ian1981]

It’s the DNO’s fuse for protecting their equipment, not for protection of the consumers side, other than what they allow which is typically 3 meters.
Not that they police it mind.
I also wouldn’t code it on an EICR tho for tails longer than this, provided that the fuse offered fault protection.

 

[D Skelton]

DNO requirements

It's important to remember that their 'requirements' are nothing more than 'nice to haves'. We have no legal or moral duty to comply with them.

I would take a far more case by case approach to the provision of isolation on tails rather than trying to stick religiously to a 3m preference expressed by companies who ultimately have no duristiction over anything past the main head.

 

[DPG]

It's important to remember that their 'requirements' are nothing more than 'nice to haves'. We have no legal or moral duty to comply with them.

I would take a far more case by case approach to the provision of isolation on tails rather than trying to stick religiously to a 3m preference expressed by companies who ultimately have no duristiction over anything past the main head.

I'm not saying you should necessarily stick to it 100%, I was saying it could be a rule of thumb guide to what DNOs sometimes require

 

[D Skelton]

I'm not saying you should necessarily stick to it 100%, I was saying it could be a rule of thumb guide to what DNOs sometimes require

I know you weren't. I was just making a general point.

 

[pc1966]

I think it comes from the regs 433.2.2 (ii) and 434.2.1 (i)

 

[Electrics]

What is the rule?

 

[D Skelton]

I think it comes from the regs 433.2.2 (ii) and 434.2.1 (i)

These regs may feed the rumour but are certainly nothing to do with DNO's asking for isolation within 3m.

Overcurrent protection for the tails will always be provided by the main fuse.

 

[andrew8902]

I believe is DNO rules but not written in stone

This is how it is written in the NAPIT Codebreakers book. If it is "ESQCR" then why is it not listed in there?? How can it be a DNO rule if different DNOs quote different lengths? Here in the westcountry, WPD will not allow sparks to remove the service fuse but in the east of the country the DNO permits it!

 

[Ian1981]

Why would you FI that?
What limitations during the inspection would lead you to believe that there could be potential for danger but a limitation on the inspection prevents you from finding out?
Then they quote the ESQCR ?