best way to joinn cables in cu change ?

[cossie400]

I was brought up to believe that crimping of solid cores is "bad practice".Surely an adaptable box with fixed base connectors of the correcting rating for the circuits involved should do the job fine. Obviously the correctly labelling should be fitted to the box cover which should be mounted in an accessable position.

I have been told in the past, that over time the copper will fuse together with the crimp/lug.

 

[uksel]

response to uksel, won't the solder eventually melt a tad with electricity causing heat? I heard in one situation that sum1 soildered sum machinary, aparatenly a big mistake because the soilder melted and caused it to burn out or sumit?....

Hi LukeScotty

I think it's reasonable to say that this would only happen in the most extreme of circumstances, ie. house fire.

the connection is initially soldered on to the supply cables armouring anyway, the amount of heat it would take for the solder to melt is fairly substantial and the connection would be open and only really subject to room temperature. the heat of the supply cable would be very minor as the cable is generally sized for it's use.

 

[12345aob]

What would be the best way of joining 6mm?

 

[LukeScotty]

good point uksel, just thought i'd liven it up abit

 

[jeremy]

at what point does solder melt. I have had the severe misfortune of working for my Brorther in law, plumber and I'll tell you when solder melts , it's FLICKING hot. not overcurrent hot , Flame hot! I can't see over current melting solder.,

What would be the best way of joining 6mm?

Whopping great yellow crimps and forearms the size of Ulster!!

 

[bert1964]

I think this may be what Jeremy is on about HellermannTyton United Kingdom - HelaCon - HelaCon

 

[LukeScotty]

how much do they cost?

 

[montybaber]

agree that ideal word no crimping solid cores and adaptable box with din mount screw terminals inside

but its not ideal im afraid lol

 

[uksel]

JB & DIN rail. that's an idea and a half - good shout there i think from monty

 

[Spudnik]

Guilty of using crimps and still do when space is of a premium.

But, as suggested, suitable enclosure with din rail terminals is the way to go.

 

[montybaber]

I have always stood fast on never crimping solid cables until very recently when i was in a position where it was unavoidable.

I remember thinking at the time about this forum and the various thoughts and I felt guilty doing it after making such a stance on here but I remember thinking to myself

'if you cant beat em join em (literally lol)'

I wont make a habit of it thats for certain but I suppose in certain circumstances I can now see why its unavoidable

 

[bert1964]

how much do they cost?

I got a box of 2 way and a box of 3 way (100/box) £19 delivered from EBAY - work a treat. Obviously need a suitable enclosure.

 

[Stixicus]

I've used some of those HelaCon Plus connectors recently and think they're really good, cost £8.99 for 100 of the 3-way ones . As far as I'm aware they can only be used on cables between 1mm and 2.5mm, but i've seen some similar-ish ones on Ebay made by "Wago" described as "lever connector block electric crimps" which will apparently take up to a 4mm stranded core.