Powder coat oven keeps tripping mains rcd all off a sudden?

D

Darkwood

• Dec 3, 2018

• #2

It could be several issues, but damp ingress into the elements wouldn't be my first thought as it powers them up for 2mins and any damp would be eliminated in that process, are there any timed controls that operate about that time like a fan etc, it could also be a failing element which leaks down due to expansion once it has heated up, I would just disconnect the elements one at a time and see if problem clears first before going any deeper.

 

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DPG

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• Dec 3, 2018

• #3

What other circuits are fed from the RCD that trips?

 

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adamfromayr

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• Dec 3, 2018

• #4

Thanks, None others trip! Its something to do with the oven heating up and tripping wasnt doing this before until today?

I was thinking its gotta be a damp issue!

But i dont know, I think i will dissconnect the elements one by one, not sure how it was working but now it isnt! I had an air compressor 16a on the wired into the same RED DIAL" Isolator switch but the compressor wasnt on and doubt thats the cause as was all working okay until today,

Darkwood i meant damp on the cables going to the elements, see my new picss please

Finger points to the RCD that trips! Nothing else is on in my house other than the normal house items!

See the cables "Going in at the bottom" ? I thinking that might be the issue? the cold maybe? earth? This dont worry was going to get fixed! and was just tempoary like this! Its not sheilded etc and i bought the correct "Oven high Temp" cable and High Temp crimps

 

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Squid

• Dec 3, 2018

• #5

My Electikery knowledge is ancient but 2000W is that about 24A draw on on a circuit?

 

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Silly Sausage

• Dec 3, 2018

• #6

adamfromayr said:

View attachment 46144

Click to expand...

Hmmm, are they single insulated cables passing through a roughly cut hole in a sheet of metal? That JB probably needs checking out, as well.

 

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• Dec 3, 2018

• #7

SWD said:

My Electikery knowledge is ancient but 2000W is that about 24A draw on on a circuit?

Click to expand...

Need new batteries in the calculator

 

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• Dec 3, 2018

• #8

Still might not be the oven at fault. There's a few things on that RCD.

 

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adamfromayr

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• Dec 3, 2018

• #9

LOL Calculator yes even i know it draws around 21a 4000kw lol

Yes im going to fix the input to the rough metal, agreed

But this was working before and now is not!

Whats JB ??

 

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adamfromayr

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• Dec 3, 2018

• #10

Was also wondering

Why does it trip the Main RCD and not the dedicated 40A MCB ??

 

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telectrix

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• Dec 3, 2018

• #11

SWD said:

My Electikery knowledge is ancient but 2000W is that about 24A draw on on a circuit?

Click to expand...

I = P/V. 2000/230 =8.6956521739 to 10 decimal places. nowhere near 24.

 

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adamfromayr

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• Dec 3, 2018

• #12

So what does 2 x 2000w heating elements = 4000w = into amps dude?

 

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• Dec 3, 2018

• #13

adamfromayr said:

Was also wondering

Why does it trip the Main RCD and not the dedicated 40A MCB ??

Click to expand...

RCDS are tripped by current leaking to earth. MCBS are tripped by overcurrent or short circuit

 

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Squid

• Dec 3, 2018

• #14

telectrix said:

I = P/V. 2000/230 =8.6956521739 to 10 decimal places. nowhere near 24.

Click to expand...

Thats why I went in to data cabling and computers and earn't a lot of money ;o)))))

 

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Squid

• Dec 3, 2018

• #15

V I R triangle blah blah blah

4000 divided by 230 - about 17.........

 

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