Spot the fault

[Andy™]

 

[steptoe]

oh,

I like the little one way unit,



are we using radio wave earthing on the SWA?

although apart from it looking dog rough and not terminated I really cant see any major issue with no other info.

 

[Lusk]

I think you might have missed an 'S' off the end of your thread title!

 

[Andy™]

its a submain to house, located in a meter cupboard (small brick building)

the mini CU is for the driveway lighting

SWA to lighting does use a core as an earth. submain is TT with no RCD protection, and no earth to the armour

 

[steptoe]

and,

you havent told us that the armour isnt rodded at some other point.

TT does NOT have to be one sole rod at origin, as PME does not always define one sole rod at origin,

the house may, or may not be rodded at the house end.

so apart from it just being DOG ROUGH you havent actually showed a major defect or safety issue IMO

 

[Andy™]

The photos not good and doesnt blow up enough, is the double pole device from the DNO's meter just a switch ?

yes, just a switch

 

[kerching]

Insulated BUT unsheathed conductors going into the isolator Jobbie?...................

....sent from my sick bed........... :coat

 

[steptoe]

so,

apart from the fact there is NO 100mA RCD on the front end and its dog rough terminations,

there is NO other de-facto fault visible.

as I said, the SWA may well be earthed at the other end of the cable.

Im not trying to be twisted, just trying to point out, dont manufacture faults that dont exist.

---------- Post Auto-Merged at 22:17 ---------- Previous post was made at 22:17 ----------

The earth in the Henley Block, where does it go at the bottom of the pic ?

Im assuming A rod

 

[kerching]

So are we just relying on the DNO's fuse to protect the SWA cable then?

...and also protect that little twin that goes to the small consumer unit?

 

[Andy™]

Thats well done then, presume its longer than 3 meters ?I love the way the armoured and T&E is terminated.

The earths i think are confusing steptoe - and i have to admit its not that clear!

yes, its longer than 3mtr (probably more like 25mtr)

there is an earth rod below (going to henley). this is the earth to the lighting DB only

 

[Andy™]

so,apart from the fact there is NO 100mA RCD on the front end and its dog rough terminations,

there is NO other de-facto fault visible.

as I said, the SWA may well be earthed at the other end of the cable.

Im not trying to be twisted, just trying to point out, dont manufacture faults that dont exist.

---------- Post Auto-Merged at 22:17 ---------- Previous post was made at 22:17 ----------

Im assuming A rod

no earth at other end of armour either. installation has its own rod though

 

[superspark]

yeh looks like 2.5 mm twin protected by poss 80 or 100 1361 fuse mmmm not good lol

 

[Andy™]

yeh looks like 2.5 mm twin protected by poss 80 or 100 1361 fuse mmmm not good lol

that would be 1.5 (although it does have overload protection by the 6A MCB)

 

[steptoe]

its protected by the OCPD in the small CU

 

[Andy™]

so,apart from the fact there is NO 100mA RCD on the front end and its dog rough terminations,

there is NO other de-facto fault visible.

as I said, the SWA may well be earthed at the other end of the cable.

Im not trying to be twisted, just trying to point out, dont manufacture faults that dont exist.

---------- Post Auto-Merged at 22:17 ---------- Previous post was made at 22:17 ----------

Im assuming A rod

no RCD & armour isnt earthed at any point on any cables (although house does have its own rod)

 

[steptoe]

no earth at other end of armour either

new information comes to light

---------- Post Auto-Merged at 22:37 ---------- Previous post was made at 22:34 ----------

So what about the SWA then

yes it needs protecting,

but on the original picture are we supposed to guess/assume/know all these things,?

a picture and no info can only be took at face value,

yes, I missed the RCD, but other than that there really wasnt much else technically wrong,

and even the RCD could be omitted if Ra/Ze was low enough,

 

[mikep]

I see what it is, they forgot to plaster the wall !!