A right head scratcher

[drew84]

Need help recently called out to a fault where the rcd would trip when iron plugged in and used for half hour to an hour into most sockets on ground floor but when plugged into 1st floor socket seemed ok
ground and 1st floor sockets are on same circuit and only happens with the iron which has been replaced
IR is ok getting around 8Meg acoss circiut and earth loop's fine

please help

 

[telectrix]

gordon bennet, kamikaze, that's an essay by your standards

 

[Kamikaze]

I will get my coat!

 

[telectrix]

well.you ain't gonna win the booker prize

 

[Geoffsd]

(i.e. = possibly low insulation resistance below 50 Mega ohms) then it is not uncommon for the main RCD to trip off.

230 / 50,000,000 = 0.0000046 A (x 1000 = 0.0046 mA.)

That's roughly half of one hundredth of a milliamp.

You need to buy better RCDs.

 

[telectrix]

can't fault your sums, geoff. that amount of current wouldn't fibrillate a gnat

 

[Kamikaze]

230 / 50,000,000 = 0.0000046 A (x 1000 = 0.0046 mA.)

That's roughly half of one hundredth of a milliamp.

You need to buy better RCDs.

Especially with the power off….lol
You must remember to read through every last comment of my post before being led astray by the Dark side...