Date of original installation

[sparkymatt1987]

Can anyone help with estimating a dates of original installations. It needs recording on the certificates but can't come up with a date. What are the signs to look for to estimate a date. Other than rubber cables and old wooden backed wylex boards.

 

[telectrix]

green cpc sleeving would date it pre early 70's. stranded cables about the same. a photo or 2 might help.

 

[SirKit Breaker]

Or you could just put "Not Known"

Cheers..........Howard

 

[Edd]

If im not sure i use the > button,, say old wylex poss rubber cables then greater than say 40 years. pvc but still looking old then >30 its an estimate remember, make it up.. its a pointless question

 

[D80]

It is only an Esitmate at the end of the day! I had a really good guide but can't find it at the moment, but here's a few things: 10MM bonding cables - 80's or later (could have just been added later though!)

No main bonding - pre 1966

Supplementary bonding in place - 1981 or later

No cpc in lighting circuit - pre 1966

Green earth sleeving - pre 1977

Fuse in the neutral conductor - pre 1955

Voltage operated earth leack circuit breakers pre 1981

None square pinned 13A socket outlets - 50's and before

Red/Black cable colours - pre 2006

Imperial Twin & Earth - pre 1970

 

[The_Wanderer]

Nice list, i too had a book with a table in it once. Wish i could find it.. Was very handy