16 amp socket in garage

[ashleywood.ash]

Hi guys
Since having a new consumer unit fitted in my house my mug welder now constantly trips with initial power source (damn new electric set up making things all safe)
Anyway is there a way I can add a 16amp socket in my garage relatively easily?
It's not a big welder only a 105.

Current setup is garage has its own fuse on consumer unit that is rcd protected.
Garage is detached and cable runs under floor to an inline fuse in the garage itself that then powers 3 strip lights and 3 double sockets.
I can't really change the existing cable or run a new one due to oak flooring in concrete floors.

Cheers

[wine~o]

Pic of your garage consumer unit please ??

[multiman]

And details of welder model may help as well

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[ashleywood.ash]

Sorry I don't think I was overly clear.
Garage doesn't have its own consumer unit, it has its own switch/fuse on the house consumer unit (so it's not part of the house ring circuit or a spur etc)
The wire then runs to the garage from the consumer unit and has a single inline fuse, the type that you turn on and off like a light switch. Then wires run from this to the lights and sockets.

Welder is a sip 105 migmate mig welder.

[multiman]

Right so looking at manual that should not demand more than 6amps seems like you have faulty welder or electric wiring issue have you tried welder inside house to see if it trips on that circuit ?

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[ashleywood.ash]

No
I'll try that first then.
Thanks

[wine~o]

6A welder is not so hot. What breaker do you have in the CU for the garage circuit ?

[ericmark]

I would think 105 is output amps rule of thumb output is 25 volt plus 1 volt per 25 amp so likely 29 volt so simple maths 29 x 105 = 3045 / 230 = 13.24 amp. This is with no loses and not counting inrush. So if what I say is correct if an inverter welder it may just about work on a 13 amp outlet, if however the old transformer type a D16 MCB is the smallest MCB which could supply it.

In the main a supply to a garage is just about enough to run a few lights and a drill, my mothers garage if fed from the ring final with a 13A FCU. I can't quite work out what you have, but is seems likely you need a dedicated supply for a welder.