big cables

[fotlong]

has anyone ever terminated a 400 mm 4 core swa how hard and how much space do you need

 

[Dave_]

Dave_


I'm sorry i haven't!! But i know that Raychem stock them, (look up there website) and i dare say most of the well know cable gland manufacturers (check them out too). One thing is for sure, they are a god send when having to terminate the larger sized multi core SWA cables.

Straight forwardly terminate the cable SWA onto the gland etc, then push the inner cores into the Switchgear chanmber and connect the the gland to the switchgear base via the 4 bolts (which you previously lined up and drilled) Pull up the heat shrink and shrink over the SWA connection. Whats more the finished gland termination gives a professional look/finish to the job!!!

Alas then i'm afraid your still left with the dressing of those larger sized cores. But the cable is solidly attached to the that switchgear ...lol!!!

Ill have a butchers

i remember when terminating a 300 4c with a mate. It was about 6pm we were sweating and needless to say, itching to get home. The xxxx cut the neutral short...! had to re-terminate obviously.... ok with a 4mm 4c but a wee bit different with a 300....

 

[Knobhead]

Ill have a butchers

i remember when terminating a 300 4c with a mate. It was about 6pm we were sweating and needless to say, itching to get home. The xxxx cut the neutral short...! had to re-terminate obviously.... ok with a 4mm 4c but a wee bit different with a 300....

OK if you can win a bit back.
Had the same happen to me but with paper/lead so not possible to win any back. My fault for leaving the mate to cut the tails to length. So I had to make 2½ x ¼” copper extensions to the bars. Expecting the forman to go ballistic I came up with the reason that to bolt the lugs direct the bars would have meant drilling too much out of the lug. Forman liked (fell for) it, “do the rest the same”. It was the first of 20 185mm paper/leads. The mate got the job of making the other 57 extension bars.

 

[grantr37]

one of those large Gas fan heaters to make it more flexible by warming up where you are working, you will want to get a boiler suit on as it may get very dirty/grimey and also some good gloves, the hard wearing industrial ones, to stop you from shredding your hands and also it will be wet/dirty.....there may be a disease risk from the tunnel/pit area as well if you are anywhere near a city as there will have been Rats in there....
A good idea to wear safety specs as well as there will be metal shavings, plastic and floor dirt pinging all over the place and you dont want that going in your eyes.
With the weight of that cable, I would say you will need 3 or 4 people there to be able to handle and move it, it gets seriously heavy, I have worked with a team before that used a mini digger reaching in through a doorway to bend and lift big cables, if somebody lets go of that stuff jump out of the way as it can give quite a belt when it uncoils...

 

[whats an rb4]

def rope to twist a lever through couple of lenghts of 3x2 bottle jack, short piece of scaffold bar to go over each core for leverage and a must is cardboard to protect cable when sliding and wedging of things.best advice is check phase rotation before you start sounds like got enough room externally.. some times good idea fix to gland plate first and roughly dress internals before re-attatching plate . and some good gloves

 

[cliffed]

just finished a job where we had to connect 2x300mm 4 core swas into an eaton panelboard onto lugs of 630 amp mccb.REALLY HARD WORK,BUT WITH THE 1.80M DEPTH U HAV,THIS WILL MAKE IT EASIER.Its the actually making off then in2 the pb thats the awkward bit.After doing ours,a few tips make sure the swas r bending at right angles to where the connections r ie.not sweeping into position then enterin at right angles,dont b afraid 2 man handle into the correct bending position,we had 3 blokes gettin this in2 the right position good luck.IT took us 1 day to position & gland off hope this helps ta ra bab

its 2 x 4core 400mm in parrallel into floor mounted switch board with a 1.8m deep cable pit underneath
dont fancy my chances

 

[somersetsparks]

Those 'Top Hat' Glands sound like a godsend! I've done a few 400 4 cores before, trying to get a cw 75mm gland into the panel would be fun, E1EX I always find easier but those top-hats look like the best thing since sliced bread!

 

[Engineer54]

They are Somerset, and what's more, give a professional finish to the terminated cable. Haven't used screwed glands on SWA cables over 120 sq mm on switchboards for over 20 years now on my projects. They come in 2 sizes ...small and large. The large will accommodate 4 core 500 sq mm SWA cables easily and probably higher, ...and the small upto 4 core 240 sq mm....

 

[sparkiegaz]

ive used glasgow threaded plates for terminating swa,s into and bolted these onto the glanding plates of the panels in the past, lot easier than getting serrated washer and lock nuts done up tight.these plates normally go onto glasgow 90,and 45 degree spreading boxes that attach to switch gear...

 

[Engineer54]

Any chance of a link or picture, ...of the method your describing mate??

 

[Knobhead]

What make of board is it?

 

[sparkiegaz]

the glasgow threaded plates ive used , grind the paint from both surfaces just wind it onto the gland then bolt onto panel,

 

[Knobhead]

Looks a job to be proud of