periodic codes

sparky0000 · 8 Aug 2010

hi all,

im just wanting to know a thew codes that im unsure of

on a ringmain circuit there is no end to end on earth to earth and n-n

poor IR readings on sockets as low as 20-60 M ohm

and no heat sleving on bathroom light

thanks

PrenticeBoyofDerry · 8 Aug 2010

• Code 1 Requires urgent attention

• Code 2 Requires improvement

• Code 3 Requires further investigation

• Code 4 Does not comply with BS 7671

JohnD · 8 Aug 2010

sparky0000 said:
end to end

continuity?

nozspark · 8 Aug 2010

sparky0000 said:
hi all,

im just wanting to know a thew codes that im unsure of

on a ringmain circuit there is no end to end on earth to earth and n-n
I'd say a 2 if only 1 break in CPC (so long as measured Zs is OK) or a 1 if more than 1 break
poor IR readings on sockets as low as 20-60 M ohm
20M-60M ohms is perfectly acceptable - no code
and no heat sleving on bathroom light
If it's suffering from heat damage then code 2 otherwise I wouldn't code it

thanks

Mine in bold

Have a look at the ESC guidance, loads of good info in it!

sparky0000 · 8 Aug 2010

sorry i know the codes just unsure wich one to use

yes continuity

PrenticeBoyofDerry · 8 Aug 2010

I'd go
1
nothing
3

sparky0000 · 8 Aug 2010

prenticeboy

was that code 1 for the first two and no code the heat sleve?

PrenticeBoyofDerry · 8 Aug 2010

sparky0000 said:
on a ringmain circuit there is no end to end on earth to earth and n-n

1

sparky0000 said:
poor IR readings on sockets as low as 20-60 M ohm

nothing

sparky0000 said:
and no heat sleving on bathroom light

3

PrenticeBoyofDerry · 8 Aug 2010

nozspark said:
Have a look at the ESC guidance, loads of good info in it!

This
http://www.esc.org.uk/pdfs/business-and-community/electrical-industry/BPG4_08.pdf

Spark123 · 9 Aug 2010

PrenticeBoyofDerry said:
sparky0000 said:

and no heat sleving on bathroom light

Click to expand...

3

Code 3 is basically for things outside the scope of the PIR hence I wouldn't use a code 3 for this.
Maybe code 2 if there was signs of heat damage or not installed to manufacturers instruction.

PrenticeBoyofDerry · 9 Aug 2010

Spark123 said:
PrenticeBoyofDerry said:

sparky0000 said:

and no heat sleving on bathroom light

Click to expand...

3

Click to expand...

Code 3 is basically for things outside the scope of the PIR hence I wouldn't use a code 3 for this.
Maybe code 2 if there was signs of heat damage or not installed to manufacturers instruction.

After reconsideration, I agree with you, meant to edit last night after my hot cup of coco.

1john · 9 Aug 2010

What are the concequences of the ring final being open circuit on CPC and neutral??

What is wrong with 20 meg insulation resistance reading??

Does the bathroom light need heat sleeving??

plugwash · 9 Aug 2010

1john said:
What are the concequences of the ring final being open circuit on CPC and neutral??

higher fault loop impedances

Potential for overloading cables depending on how the ring is loaded and where the break is.

Depending on how the break occoured the break itself could a further hazard such as a damaged cable or wires loose in a socket that could fal out or short at any time.

Risteard · 9 Aug 2010

nozspark said:
(so long as measured Zs is OK)

Also need to confirm it can handle fault current.

Spark123 · 9 Aug 2010

In reality that shouldn't be a problem as a spur only has a single piece of 1.5mm cpc

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periodic codes

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