commercial meter tails

[Justin2211]

bit of reassurance on coding
I have 3 phase 3x150a (checked with supplier) incomer feeding meter in 50mm tails- 5omm tails to 3x blocks from meter
from each block tails to various isolators all not exceeding 1m in the same cupboard, the highest fused isolator at 60a being fed with 16mm and other various isolators around 32a -60a
anyway Im judging between c3 or c2 as the demand can't exceed 60a just after your thoughts

 

[Andy78]

If you think it would comply with 433.2.2 then no code.

 

[netblindpaul]

What are the blocks rated at?
Normal Henley blocks wouldn't be 150A I would think...

 

[Toneyz]

What are the blocks rated at?
Normal Henley blocks wouldn't be 150A I would think...

You can get them at 200A Greenbrook do them can take 70mm cable. What are the existing rated at?

 

[davesparks]

As long as the tails are suitably sized for each switched fuse and the service connector blocks are rated at 150A or more (which I'm guessing they are if 50mm fits in them) then there no issues with current rating.

 

[davesparks]

What are the blocks rated at?
Normal Henley blocks wouldn't be 150A I would think...

Normally no, but also they normally don't accept 50mm conductors so it's likely that these are going to be rated at more than the usual 100A.

 

[bigspark17]

No code.

 

[netblindpaul]

Peeps you are presuming that the tails haven’t been given a haircut!
It would not be the first time for me to find wiring given a trim to fit into a connection.

 

[davesparks]

Peeps you are presuming that the tails haven’t been given a haircut!
It would not be the first time for me to find wiring given a trim to fit into a connection.

It wouldn't be the first time for many of us, but we can only assume the OP would have noticed that.

 

[Deleted member 26818]

From the information supplied, I’m struggling to think of a reason why a code would be applicable.
Perhaps the OP could tell us why they think a code is warranted?

 

[Toneyz]

Please note my post No.4 It is basically the same principle as connecting onto bus-bars from switched fuses.

 

[Justin2211]

thanks for replies yes 200a blocks checked
the reason I was wanting to code was the fact that someone may replace a fuse in one of the iso for +80 and then we have an issue
which is quite possible as I found a fuse wire in a sub board had been replaced for a bit of 2.5

 

[Deleted member 26818]

You can’t really code because someone might replace a fuse with a different size.
The same applies with boilers and extract fans.

 

[Andy78]

You'd have to code every circuit on every EICR jut in case someone changed the OCPD in the future ?

EICRs report what is found at the time of inspection.

 

[Justin2211]

You can’t really code because someone might replace a fuse with a different size.
The same applies with boilers and extract fans.

You'd have to code every circuit on every EICR jut in case someone changed the OCPD in the future ?

EICRs report what is found at the time of inspection.

point taken thanks