Welder "must be connected to a 30A fused spur"

[Guest112]

My old man just rang me wants to buy a welder but the manufacturers instructions say the welder has to be connected to a 30A fused spur, He hasnt bought it yet he said hes going to get more details for me tomorrow which ill post up,

From what i gather this'll have to be on a dedicated circuit but ive never heard of a 30A fused spur and can't find them online.

Anyone heard of these or know where to get them or installed one of theses welders before?

Any information would be great, I'll post the extra info as soon as i get it on here.

Thanks

 

[Guest123]

Your old man not called Imran is he???

http://www.electriciansforums.net/e...forum/45019-30a-fused-spur-needed-welder.html

 

[Guest112]

didnt see that thread cheers lenny must be a good welder word is spreading lol

 

[telectrix]

bear in mind that a "30A fused spur" can be renamed a 30A fused radial. i.e. referring to the circuit, not a FCU. then it makes sense. a 30A radial circuit ( 4mm) protected by a 30Afuse ( or 32A MCB. )

 

[Guest112]

bear in mind that a "30A fused spur" can be renamed a 30A fused radial. i.e. referring to the circuit, not a
FCU. then it makes sense. a 30A radial circuit ( 4mm) protected by a 30Afuse ( or 32A MCB. )

my thoughts also mate i was considering connecting the welder to a commando socket and just protecting the circuit from the db

 

[telectrix]

sounds like a plan. esp if you've got some 4mm or 6mm T/E left over from a job.

 

[Mr Mike]

Your old man not called Imran is he???

http://www.electriciansforums.net/e...forum/45019-30a-fused-spur-needed-welder.html

Lenny,
The Super Moderator, shall now have the title; Hawk Eye, Super Moderator.

 

[overskilled]

My old man has one of those welders.
Was thinking of going 6mm2 T+E (have a length going spare) from a 32Amp MCB covered by an RCD into a 32A Commando socket and putting commando plug on the welder.
However when I opened the welder box to have a look at the data plate, the cord supplying the welder is 1.5mm2 H07RNF LNE, which unless my head is up my rear end (wouldn't be the first time either) is only rated to 16 amps.
Data plate on the welder has a max I1 value of 36.8A and a nominal value of 11.8A, welder itself is internally fused at 22A.....So now considering a 16A Type C / Type D MCB (still covered by RCD) and 16A Commando socket and plug. Only concern is start up current draw might cause nuisance tripping even with the Type C or D MCB.....as welding is a hobby for my old man so can take him a bit to get a weld struck properly.
Thoughts?

 

[Deleted member 26818]

I wouldn't use an RCD.

 

[telectrix]

bear in mind that your Zs will have to be considerably lower on a type c or d MCB. 6mm should take care of that if you have a nice low value of Ze.

 

[telectrix]

I wouldn't use an RCD.

nor me, as long as it's not for outdoor use.

 

[overskilled]

The CU in the Garage is a dual RCD board, which would need some minor mods to fit a non RCD protected circuit.....might be an option though. However knowing my dad...it likely will get used outside so will need to be RCD protected...and he is one of "those" who are deliberately ignorant of electricity....so RCD protection might be a good thing.
I need to check the Ze...thanks. The house ratings are fine and the Garage is fed off a short run of 6mm2 mechanically protected T+E so hopefully Ze should be ok. (Though just remembered that the guy who replaced the house CU stuck the garage on the house RCD....so need to sort that to regain discrimination........my old man and "time served boys" recommended through the pub or other dubious means, none of them who have any clue seemingly.

 

[Knobhead]

The 32A rating is for when the arc is first struck and the transformer / choke saturates. Once saturated the current drops. If you do lots of little tacks expect trouble.
Glad I’ve only had to work on industrial sets. Mind you a moron welder can cause plenty of damage. “There’s something wrong with the 63A plug and cable, it’s smoking!” I’ve near strangled them with the earth clamp lead.

 

[telectrix]

dunno about welders, but i could name a few plumbers i would like to connect to a 30A socket.

 

[Rockingit]

dunno about welders, but i could name a few plumbers i would like to connect to a 30A socket.

Can I add one to your list? Please?!