Garage/Workshop Supply

[richo106]

Hi,

My friend has a detached garage and he would like to have a workshop in there to work on his cars. Eventually he would like a welder, pillar drill, bench grinder, compressor, lighting and couple of double sockets for general use. All the equipment mentioned will be on a 13A plug top. He said he will only be using one thing at a time (they all say that)

Ive said he would need at least a 10mm SWA cable to feed a new DB. Just after some advice on what DB would people install and the circuit layout. A couple of ring mains? radials?

All advice greatly appreciated and other things to consider when installing a new garage supply

Thanks

 

[Pete999]

Sorry Pete, was just finishing your incomplete sentence. No offence intended.

None taken

 

[Pete999]

Sorry Pete, was just finishing your incomplete sentence. No offence intended.

None taken

 

[Rpa07]

None taken

One for now @DPG

None taken

One for next time!

 

[richy3333]

As someone with a wood shop its my experience that dust gets everywhere! Ask your spark to consider containment of cables carefully and IP rated CU's and boxes. Decent table saw and dust extractors usually need a 16A supply of their own.

 

[ruston]

As above. Sawdust is a dangerous waste product with sources of ignition from sparking machines.

 

[Strima]

If you want water run it all in plastic, no need for bonding then.

 

[Blaspark]

Ruston - how much saw dust is required before it counts as a hazard?

My brother wants to set up a wood working work shop too. I doubt he will worry about it. He never has and he chain smokes in the garage with no extractor but plenty of power tools.

I suspect how fine the dust is might be important.

 

[ruston]

It is the fine airborne dust that is the main hazard if there was a source of ignition this could cause a chain explosion.
I know what you mean about woodworking sheds , I have seen many that are full of dust, but it is still a risk.
At the Quarry I worked at we were shown two explosions . One without dust blew a hole in a small purpose built wall , the other with the same amount of explosives with a bag of sugar added blew the wall to bits.

Ps . It might of been flour , my memory is not what it was.
Sugar. Dust explosion info | Website for dust explosion information - http://www.dustexplosion.info