garage unit

[paul b b]

Hi all,

My inlaws had power put ot their shed and the guy (not a spark) has put a ring on a 16a and lights on a 6a.

I have just passed my exams and was looking at it, he has also put their kiln (6kw) straight into the rcd.

1. can i confirm that this is wrong

2. if i put a 32a mcb in for the ring can i put the kiln on that too? it is not going to be used too often.

thanks

 

[Evans Electric]

A ring main in a shed, blimey !! ? How many sockets are in there ? There is no problem with a 16a MCB, its probably a radial, Paul.

The kiln , however needs a 30amp MCB and not connected direct to the RCD.

What size is the cable from the house ?

Deke

 

[a1]

A ring main in a shed, blimey !! ? Deke

I have a 32 A ring Final in my Workshop. (AH Hem, - Shed).

 

[Andy™]

I have a 32 A ring Final in my Workshop. (AH Hem, - Shed).

yea, but the 32A ring is 11KV!

 

[Andy™]

Hi all,My inlaws had power put ot their shed and the guy (not a spark) has put a ring on a 16a and lights on a 6a.

I have just passed my exams and was looking at it, he has also put their kiln (6kw) straight into the rcd.

1. can i confirm that this is wrong

2. if i put a 32a mcb in for the ring can i put the kiln on that too? it is not going to be used too often.

thanks

straight into the RCD with no overload/fault protection is a very bad idea. although it may be on a breaker elsewhere (feeding shed), its still very bad practice and should not be done like that

you could put it in the same MCB and ring, but MCB's are only a few quid (if there is space)

 

[Apache]

you could put it in the same MCB and ring, but MCB's are only a few quid (if there is space)

Sounds like a ready filled 2 way garage CU to me? Probably came with the 6A and 16A?

Do we have a rating for the kiln?

How is the supply run to the shed, what is the size of the cable and what is the protection at the house end?

 

[Andy™]

Sounds like a ready filled 2 way garage CU to me? Probably came with the 6A and 16A?

maybe 2 way... in which case add an external MCB in 2way enclosure

Do we have a rating for the kiln?

he has also put their kiln (6kw) straight into the rcd.

it may be 6KW patch?

 

[Apache]

it may be 6KW patch?

Blushing

Thanks Andy - first rule read the question!

6000/240 = 26A Deke is not psychic, he is correct.

We need to know what the supply can handle then?

 

[Andy™]

BlushingThanks Andy - first rule read the question!

6000/240 = 26A Deke is not psychic, he is correct.

We need to know what the supply can handle then?

you should always use 230 for calculations (even though the supply will normally be at least 245)

 

[Apache]

you should always use 230 for calculations (even though the supply will normally be at least 245)

I did 6000/230 = 26A as I said

6000/240 = 25A

I miss typed

You're on form tonight

 

[SPECIAL LOCATION]

it may be 6KW patch?

Quite right Sherlock..

I would concur it just may well be 6000watts,

(26A approx?)

As Deke said..

How big is the supply cable from the house? ?:|

please don't say its only a 2.5mm SWA:_|

on a 25m run down the garden..

with an Exported earth!! :_| :OPray

Hello Paul b b?

how long ago was this work done?

were there any testing/certificates/or Part P notification?

It does sound a tad wrong to me!

 

[paul b b]

Sounds like a ready filled 2 way garage CU to me? Probably came with the 6A and 16A? Do we have a rating for the kiln?

How is the supply run to the shed, what is the size of the cable and what is the protection at the house end?

Yes the garage cu is 2 way with a 16a and 6a, B&Q super deal no doubt.

I'm not sure about the house ccu. the swa cable was put in by a real spark, but they had no shed there at the time.

so i should be coverd if i replace the 16a with a 32a and run the sockets and kiln from that 1?

thanks for the reply

 

[Apache]

Yes the garage cu is 2 way with a 16a and 6a, B&Q super deal no doubt.I'm not sure about the house ccu. the swa cable was put in by a real spark, but they had no shed there at the time.

so i should be coverd if i replace the 16a with a 32a and run the sockets and kiln from that 1?

thanks for the reply

As long as supply cable can take it (and protection @ source ?MCB)

 

[SPECIAL LOCATION]

Yes the garage cu is 2 way with a 16a and 6a, B&Q super deal no doubt.I'm not sure about the house ccu. the swa cable was put in by a real spark, but they had no shed there at the time.

so i should be coverd if i replace the 16a with a 32a and run the sockets and kiln from that 1?

thanks for the reply

Not necessarily.. need more info.....

What size CSA is the SWA from the house?

and how long is the run?

it may not meet max permitted volt drop limitation with a 6k load?

I would have thought the Kiln should be treated as a dedicated circuit as with an oven?

 

[SPECIAL LOCATION]

....the swa cable was put in by a real spark, but they had no shed there at the time.....

So it may well be properly installed...

BUT the real spark would probably have had no Knowledge of the expected 6k load.

so cable could well be too small?

You do need to go back and do the basic cable loading calcs to ensure its safe. :|

Guiness Drink

 

[paul b b]

So it may well be properly installed...BUT the real spark would probably have had no Knowledge of the expected 6k load.

so cable could well be too small?

You do need to go back and do the basic cable loading calcs to ensure its safe. :|

Guiness Drink

its about 2 metres from the house. i'm not sure what the csa of the swa is or what the mcb that is is fed from so will have to pop back and have a look.

thanks for your help!!!!!

I will be back with more i'm sure