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Discuss how to cure a blowing fuse in the Electrical Forum area at ElectriciansForums.net

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G

Guest111

Some latvian contractors had complained about a welder blowing a fuse on an extension lead repeatedly,Finally they announced they didn't need the electrician calling out as they had resolved the issue,yes that is a piece of an M6 bolt!

phone 002.jpg
 
Smart guys! They realised the wire was covered by the C/B so they didnt need any secondary fusing .......
 
G

Guest111

The laugh was the lead was a 50 foot length of 1mm flex,should have seen the overheating on it.
 

CockneyReject

Regular EF Member
God they could of atleast jammed an m8 in there and done a proper job

not just the euro trash that do this, plenty of fencing contractors and farmers are experts in this line of work
 

gnuuser

retired Industrial wire monkey
yeah they let the magic smoke out
you know when they do this type of **** they deserve the darwin awards:90:

most welder manufacturers specifically state that extension cords or leads must not be used.
 
K

Knobhead

Could you tell me the protection built in to US plugs and sockets?

The entire US electrical industry deserve a Darwin award.
 

gnuuser

retired Industrial wire monkey
actually some appliances are coming out with fused plugs and gfci.
dont get me wrong tony I agree with you and i wish we had fused type plugs like you guys use
but I have to work with what we have.
this is also the reason my home is wired for low voltage control (only outlets are at 120 volts)
all lighting and switching is at 24 volt.
also solar cells charge the battery banks for emergency lighting
the side benifit is a lot lower cost in wire
 

gnuuser

retired Industrial wire monkey
my statement about earning a darwin award is for those who would replace a fuse with a solid bar.
fuses are made to burn out if the current draw is exceeded this is a sacrificial safety element.
purposely bypassing a safety device be it a fuse or safety switch is just asking for problems.
 
K

Knobhead

my statement about earning a darwin award is for those who would replace a fuse with a solid bar.
fuses are made to burn out if the current draw is exceeded this is a sacrificial safety element.
purposely bypassing a safety device be it a fuse or safety switch is just asking for problems.
Fault finding I replaced a 450A fuse with a solid link, so the back up was a 1200A ACB. After many abortive tests I’d run out of ideas. Found the fault, a tree falling over on fire gave the game away. Its roots had broken an UG joint.

I don’t recommend this normally but needs must at times.
I’ve done it a few times on 11KV (upped the protection relays first) to give a good short that could be traced. Wandering around fields in the middle of winter isn’t my idea of fun.

PS I've never work on domestic.
 
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