16mm Tails

[Bez]

Just been to see a job, quite knowledgable lady actually, asked me to price for new CU and Bonding upgrade, her words, not mine. Anyway I digress, current CU is some three or four meters away from head, which is in an external cabinet. Lord knows how the tails arrive at the CU but they do, and are 16mm, and you've guessed my next question. Can I avoid pulling her house to bits to get new 25mm tails in and note it as a deviation, or does it have to be done. I'm thinking of those words again in the EAWR, "so far as is reasonably practicable". It really would be a pig of a job to route new tails.

Your comments, good and bad always appreciated.

Bez

 

[Andy™]

i would most likely leave them

 

[tom1]

i did not think there was a reg to say you had to change them.

what about sticking in a isolator and running 25mm to your cu.

maybe give the dno a call to say they need upgrading and you also noticed the fuse needs seling

??

 

[SPECIAL LOCATION]

Providing the sizes of ALL of the various installtion conductors are appropriately protected by a suitably rated fuse / breaker...

then safety wise no problem...

Only issue would be inconvenience if the popped the main fuse!

 

[SPECIAL LOCATION]

i did not think there was a reg to say you had to change them.what about sticking in a isolator and running 25mm to your cu.

maybe give the dno a call to say they need upgrading and you also noticed the fuse needs seling

??

there isn't a reg...

But there is guidance in OSG

page 17 point 2.2.3

it does suggest 25mm!

coffee

 

[steptoe]

I wouldnt worry about them.

 

[Riggy]

I would suggest you need to consider two points:

1. Incoming fuse rating

2. Likely load

I would only leave 16mm tails if the incoming fuse was 80A or less, OR it's highly unlikely the tails will be overloaded (e.g. gas cooker, gas heating, no electric shower)

Otherwise I'd upgrade.

 

[steptoe]

I would suggest you need to consider two points:1. Incoming fuse rating

2. Likely load

I would only leave 16mm tails if the incoming fuse was 80A or less, OR it's highly unlikely the tails will be overloaded (e.g. gas cooker, gas heating, no electric shower)

Otherwise I'd upgrade.

but how do you know,

unless the seal fairies have been in. ........

 

[Riggy]

If the seal fairies haven't been in, you won't be replacing the consumer unit, so I assumed they had, they always seem to precede me!

 

[Bez]

Thanks guys, this property has been chuffing along with these tails for 25 odd years. Low demand property I would say.

1 30A Ring

1 30A Cooker

2 5A Lighting

1 15A Immersion

Don't think I'll be fighting to change them if I get the job!

 

[SPECIAL LOCATION]

I am concerned that the "SEAL FAIRIES" get too much free publicity on this forum!

I demand equal rights for the "DOLPHIN FAIRIES" and the "SEA LION FAIRIES"!!!

Stand up and be counted for all aquatic mammal fairies!!!!!

BlushingGuinnessGuinnessGuinness



how many have I had???BlushingGuinness

GuinnessGuinnessGuinness

:coat

 

[Bez]

I like em' they always seem to be around when you need them

Oh, by the way, it's time for your tablets and off to bed specs

 

[Andy™]

If the seal fairies haven't been in, you won't be replacing the consumer unit, so I assumed they had, they always seem to precede me!

dont assume things. you dont know if there is an isolator fitted or not.

and it is possible to replace a CU without removing fuse

 

[Riggy]

[quote name='Andy

 

[Andy™]

there is a difference between having an opinion, and giving potentially false information because you dont have any knowledge of particular installation.

 

[Riggy]

[quote name='Andy

 

[Andy™]

i wasnt on about those seal fairies. i was on about the part where you said you wont be replacing CU if fuse hasnt been removed (by seal fairies). you can replace a CU/install isolator without removing fuse

 

[Bez]

You are quite correct Andy, there is an isolator between fuse and old CU, so no need to pull fuse.