Resurrection of a CFEI 100 KVA Induction Furnace

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awemawson:
Touch wood ATM that bit is OK (the inner wall is plain - corrugations only on the outside) but I've just noticed a weep from the upper 1" BSP plastic connector :bang:

. . . .more re-work needed

But I think that I've found a simple solution to the 'tank to Grundfos' pipe leak, hopefully suitable bits ordered

And again , hopefully, the rest of the trench is being dug tomorrow :thumbup:

awemawson:
First thing yesterday I finished hand digging the pipe trench, and have the blisters to prove it :clap: This first part of the trench is quite shallow, so once a few inches of soil are covering the cable and pipes I'm putting old roofing tiles topped with warning tape then fully back filling

Then having identified that I still had some 4 core 6 mm SWA cable (53 amp rated) left over from the Tractor Shed build, unrolled it (on grass to avoid scratching the sheath) and found that there was 15 metres on the reel.

Careful measurement of the only possible route from the main distribution board to a suitable spot in the foundry for a sub-panel showed that it was tight but just about achievable length wise - on this basis I ordered up a 4 way 3 phase panel and started drilling the necessary holes.

Both the main workshop and the foundry wall that needed drilling have changed their form several times over the years - the main shop is timber feather edge clad, but on the welding shop side I've built a fire stop from 100 mm block-work, and on the workshop side it's been foam insulation sprayed and lined with 18 mm OSB board, so the aggregate thickness is quite considerable and fun to drill holes in. Entering the Foundry, the only route was through the 6 mm web of an RSJ up in a tight corner, the other side of which was again ultimately feather edge board with other layers between.

In all a fun time but the cable got there in the end - length limitations mean I can't put the sub panel quite where I wanted, but it'll be OK. From this panel will radiate feeds to two 16 amp commando sockets (for new cooler and pottery kiln), several twin 13A sockets and the lighting circuit.

Now I need to cut a load of box section to weld into the structure of the foundry to support the sub-panel sockets and a water panel for flow and return from the bore hole.

AdeV:
I have to say, this is quite an amazing project.... I really hope the thing works for you after all this effort!

awemawson:
Well Ade, it would be rather nice if it does :clap:

And if it doesn’t , well there’s another challenge to tackle.

As I sit here typing a friend is putting sealant dope on the corrugated cement roof as it was laid to too shallow a pitch and water tracks up the valleys when it rains and leaks in at the sheet overlaps. Seems to be pretty good stuff with 10 mm fibres to bridge gaps. At the price it should be fantastic 😀

It’s called Cromapol and has some pretty good reviews

hermetic:
Chromapol is the dogs whatsits Andrew, It is expensive, but cannot be beaten for roof repairs, especially flat and built up felt roofs. Sweep the water off and apply it straight to the wet roof!!! as it settles into the leak the water comes up through the chromapol, I did not believe it till I used it.
Phil

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