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J

jordyboy004

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been on the firm for nearlly 2 years now and ive never had to do a test and inspect on a property. well now the time has come and im not entirely sure what tests i need to do, could some please tell me if this is correct.

visual inspection
IR all the circuits
get a Z reading from all the circuits
RCD test
earth loop
pfc

any more?

thanks
 
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you wana learn cris ban peef

continuity of bonding conductors and circuit protective conductors
continuity of ring final circuit
insulation resistance

barriers and enclosures

dead polarity (your doing this in ur continuity tests)(i think) or in the insulation R test
live polarity
Earth electrode ( zs )
earth fault loop impedance (ze )( zs)
PFC
funtional testing

hope that helps
 
J

jordyboy004

  • Thread Starter Thread Starter
  • #3
yeah thats great thanks, the continuity ones i forgot. im just trying to make up a little help sheet for myself explaining how to do the tests, ive got a mind blank of the pfc one tho. am i right in thinking there is different ways to test this depending on the earthing system? hard to remember 3 years ago at college lol. oh and what is crisban peef lol
 
T

TonyM58

  • Thread Starter Thread Starter
  • #4
Jordyboy

PFC is made up of prospective earth fault current (PEFC) measured between phase (sorry Line now, i've got my 17th edition head on) and earth, and Prospective short ciruit current (PSCC) measured between line and neutral.

the highest of these two values gets entered on the paperwork against PFC

Correct order is

Continuity (Protective and bonding conductors)
Insualtion Resistance
Polarity (which ISNT part of the IR test Luke!!!!)
Earth Fault loop impedence (Ze, Zs and your PFC's)
RCD's


Be aware that the general conscensus on Zs measurements is now changing.

If you have Ze, and your (R1+R2) values then measuring Zs when you dont need to is in direct contravention of the Electricity at Work Regulations. :eek:

Generally, measure it at a socket with a plug in lead, and calculate everywhere else
 
E

EasyFox

  • Thread Starter Thread Starter
  • #5
I was taught the acronym
CRIPELR

Continuity
Ring continuity
Insulation resistance
Polarity
Electrode resistance
Loop impedance
Rcd
 
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