I bought a home powder-coating kit and need to install an oven to bake my bits in (ooh, err, missus!) Given that the oven in the kitchen gets an RCD and a switch all of its own, will my garage wiring handle the current?

The circuit out to the garage is in armoured cable, and protected by a Hagar B32 (is that 32amp?) RCD, straight from the main consumer unit in the house.

I'm guessing that the RCD may need uprated, and that I'll need another in the mini consumer unit in the garage to supply power direct to the oven via heavier cable?

 

It all depends an the oven, what is it rated at i.e. does it require a 45A Feed?

 

Wil depend on the amperage of your oven,the cable size and length of run m8.

 

Didn't know ovens came in different strengths!!!

I was planning to buy a cheap secondhand oven until this thought occurred to me.

The cable from consumer unit to garage is about 25 metres or so, all in armoured cable but I don't know what rating it is.

 

If its just a domestic oven with no heating rings the cable you have should be fine. A normal oven will only draw about 15Amps its the heating
rings that are hard on electricity. The 32A RCD will be fine.

To get a rough Idea what size the cable is just measure the outside diameter of the cable and I can tell from that i.e. a 3 x 16sq SWA will have an outside dia of 22.4mm.

 

get a gas oven and put it on changeable bottles - MUCH cheeper