Double insulation

[D Skelton]

Does anyone else come across EICs which have double or reinforced insulation as a protective measure ticked on the schedule of inspections?

This springs to mind as I am currently looking at three different EICs for three seperate installations by three different companies, all have whom have ticked this box. Is it just me, because it seems like every single EIC I ever see has this box ticked?!

I have yet to design and/or install an electrical installation that utilises double or reinforced insulation as its sole protective measure???

Just wondering?

 

[Croney]

Are the not listed as "other methods of protection" i.e supplemental methods of protection rather than sole protective measures?

 

[D Skelton]

No, listed under - Methods of protection from electric shock is:

Both basic and fault protection

Which covers:

SELV
PELV
Double insulation
Reinforced insulation





Never have I designed and/or installed a system that utilises any of these as its sole protective measue. I can't see that a great many other sparks will have either unless they work for Network Rail or TFL, and yet they all seem to want to tick these boxes?!

 

[Croney]

Maybe if they don't understand the meaning they just tick the boxes?!

 

[D Skelton]

Tick tick, cross cross, tick tick, cross cross.

It's like they aren't even reading the schedule, they're just 'ticking' and 'N/A'ing willy nilly?! lol

 

[Engineer54]

Most people still think or call service head tails as ''Double Insulated'' but are actually insulated and sleeved!! lol!!

 

[Croney]

I must admit I'd filled in hundreds of PIR reports for caravans, nearly always the same on the tick sheets so you get into a routine with them, really threw me when they changed to 17th edition, and EICR!

 

[Geordie Spark]

Maybe if they don't understand the meaning they just tick the boxes?!

It means you wrap the insulation tape around twice.

 

[Knobhead]

If they tick the box, insist on a complete rewire. It’s not to their requirements is it.

 

[D Skelton]

If they tick the box, insist on a complete rewire. It’s not to their requirements is it.

Haha, if only I could!

"Sorry Sir, your last electrician ticked the wrong box, you know what that means don't you!", "REWIRE!"

 

[Simlec]

Where do you stand on the note at the bottom of page 61, where it makes reference to EQUIPMENT, and not just the final circuit?
lets say a double insulated light fitting that forms part of the fixed installation.

 

[D Skelton]

Where do you stand on the note at the bottom of page 61, where it makes reference to EQUIPMENT, and not just the final circuit?
lets say a double insulated light fitting that forms part of the fixed installation.

I haven't got my book in front of me it's in the van so will dig it out tomorrow, but the first part of the inspection schedule is only referring to the protective measure applied to the whole installation.

 

[Simlec]

protective measure applied to the whole installation.

wheres it say that?

 

[D Skelton]

I'll dig it out for you tomorrow

 

[Zebra Stripe]

Does anyone else come across EICs which have double or reinforced insulation as a protective measure ticked on the schedule of inspections?

This springs to mind as I am currently looking at three different EICs for three seperate installations by three different companies, all have whom have ticked this box. Is it just me, because it seems like every single EIC I ever see has this box ticked?!

I have yet to design and/or install an electrical installation that utilises double or reinforced insulation as its sole protective measure???

Just wondering?

Double insulation is not suitable as the sole protective measure in domestic situations as it would require require the installation to be under effective supervision (Reg 412.1.3)

However, this box would be ticked if double insulated equipment was connected or installed, as would Selv if Selv downlights were installed etc