What happened?

JakeC · Jan 9, 2016

Hi all, trying to understand what I did wrong or what caused my volt meter tip to arc, ruin my tester and trip out rcd & mcb. I had a fluke t100 and have been fault finding a tumble drier. I probed L2 onto heat element to check voltage was present and blew the tip off. What caused this? Cheers

LankyWill · Jan 9, 2016

maybe capacitance? was the dryer plugged in and turned on?

telectrix · Jan 9, 2016

meter set on ohms?

davesparks · Jan 9, 2016

Contact between L and N or E will have caused it (or L to L if TP)

Leesparkykent · Jan 9, 2016

jekyll from flebay?

R G · Jan 9, 2016

Possibly touched the earth and the live at the same time with the tip....

Dave beat me to it ....lol.....

JakeC · Jan 9, 2016

I used a fluke t100 volt meter so not a case of wrong settings it's all automatic and I'm sure I didn't short :thinking:

davesparks · Jan 9, 2016

JakeC said:
I used a fluke t100 volt meter so not a case of wrong settings it's all automatic and I'm sure I didn't short :thinking:

For an arc to have occurred there must have been conductors at two different potentials making loose contact.

Leesparkykent · Jan 9, 2016

JakeC said:
I will post photo of where I probed tomorrow :nopity:

haha..

sparksburnout · Jan 9, 2016

JakeC said:
I will post photo of where I probed tomorrow :nopity:

I could do with a good probe myself, I'm looking forward to this. If you don't have any luck we will make do with the tumble dryer.

telectrix · Jan 9, 2016

seems to have been a bit of a fluke.

ruston · Jan 9, 2016

Maybe your test lead was snagged in an earthed sharp edge. Have you checked the leads.

telectrix · Jan 9, 2016

should have used the correct tool for repairing a fumble dryer.

sparksburnout · Jan 9, 2016

Sounds like a load of cold air to me

telectrix · Jan 9, 2016

funny, coz i just had to fix our dryer. think i posted about it last week. bloody thing tripped RCD an hour before we went away for new year,

Marvo · Jan 9, 2016

Did you do a risk assessment before testing a machine that was live and I'm guessing actually operating?

Here's my guess what happened.....

davesparks · Jan 9, 2016

That couldn't possibly have happened because, as you pointed out, he would have carried out a risk assessment for the live testing procedure and as a result used shrouded probes in accordance with gs38

telectrix · Jan 9, 2016

davesparks said:
That couldn't possibly have happened because, as you pointed out, he would have carried out a risk assessment for the live testing procedure and as a result used shrouded probes in accordance with gs38

and the pope is married.....

PEG · Jan 9, 2016

This is why Zorro gave up testing :smile5:

What happened?

JakeC

LankyWill

telectrix

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davesparks

Leesparkykent

R G

JakeC

davesparks

Leesparkykent

sparksburnout

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telectrix

-

ruston

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telectrix

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sparksburnout

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telectrix

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Marvo

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davesparks

telectrix

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PEG

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