Another Pair of eyes on an outbuilding job please

[Guest55]

Acetone ? is that flammable ?
oops , looks like a full pyro install is needed.
I can see all the Electrical Trainee breaking out in a nervous sweat lol.

 

[needasparks]

Just to add a little more.

Ventilation is going to be an important factor if spraying using acetone based aerosols. So perhaps a look at BS EN 60079 series of standards may be something to consider.

Thats a good point, staying with the subject of fans, I thought the 1.5kw was a bit ambitious for a fan but could be wrong.

 

[ackbarthestar]

Acetone ? is that flammable ?
oops , looks like a full pyro install is needed.
I can see all the Electrical Trainee breaking out in a nervous sweat lol.

I once considered wiring my bathroom lighting circuit in Pyro, on the advice of my first wife :biggrinjester:

 

[needasparks]

I once considered wiring my bathroom lighting circuit in Pyro, on the advice of my first wife :biggrinjester:

Why ? Does she service the car in there ?

 

[ackbarthestar]

Why ? Does she service the car in there ?

I've never heard it called a 'car' before......

..... Maybe that's why its called a carzy?

 

[ackbarthestar]

Thats a good point, staying with the subject of fans, I thought the 1.5kw was a bit ambitious for a fan but could be wrong.

A 1.5kW fan should provide a reasonable throughput, but the positioning of the fan and vents will be critical.
Sticking all the switchgear and protective devices externally is also something to think about.
I once installed a10 way dist. board on the outside of a summerhouse in a surface mounted meter cabinet.

 

[claret73]

Are you ending up with two RCDs in series? If so, and both 30mA non-delayed, you won't have any discrimination between them

I realise that & have seen that before. I was thinking of an RCBO at the house & just MCB's at the Outbuilding contrary to the above.

- - - Updated - - -

I'm glad Tel could help as I was slipping into a coma by the 6th paragraph of the opening post lol.

I know you're having a laugh, Sorry to bore you! But I wanted to run it by somebody

 

[claret73]

Just to add a little more.

Ventilation is going to be an important factor if spraying using acetone based aerosols. So perhaps a look at BS EN 60079 series of standards may be something to consider.

He doesn't spray with aerosols. It's mixed & sprayed from an air gun. It's a fairly large extract Fan not a Bathroom 'Manrose'...hence the Wattage. I would think if it's flammable & combustive, he wouldn't be brazing with a welding torch in the same space!...

 

[ackbarthestar]

He doesn't spray with aerosols. It's mixed & sprayed from an air gun. It's a fairly large extract Fan not a Bathroom 'Manrose'...hence the Wattage. I would think if it's flammable & combustive, he wouldn't be brazing with a welding torch in the same space!...

If the paints are suspended in acetone then spaying it from a compressed air cylinder electrically powered will require some adherence to BS EN 60079. Ventilation in this case will be very important.

 

[Amp David]

Thought ti was cellulose spray?