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Crimps (Read 14916 times)
woodsmith
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Crimps
May 14th, 2004, 6:57pm
 
I have been reading about crimps on this forum and I have been left with a couple of questions. ??? ???

  • I have read that crimps are only suitable for stranded cable, but 2.5mm t&e and smaller is solid drawn. So does that mean they are only be suitable for 4mm and above?

  • Are they special crimps or are automotive crimps suitable for 240V?


I have used quite a few recently and hope the news isn't too bad.
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supersparky
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Re: Crimps
Reply #1 - May 14th, 2004, 7:00pm
 
tis fine.....every spark in the land uses em!
solid cable is fine if you use a rachet crimper, ive never had a problem...coper is a soft metal anyway

they are pretty much all ok for 240...ive never found any that are specificly 12v....maybe the heat shrink ones...over than that no probs...if there is then probrably 99% of houses and shops are buggered  Grin


ss
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woodsmith
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Re: Crimps
Reply #2 - May 14th, 2004, 7:07pm
 
Thanks ss, I didn't fancy another day in the loft swapping these things over.
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HM
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Re: Crimps
Reply #3 - May 14th, 2004, 9:50pm
 
IMHO crimps are a waste of time unless you've got a proper ratchet crimper. The sheds sell toy crimpers which don't ratchet, and frankly I think they are potentially dangerous in so far that they tend not to give a firm crimp on the cable. I'll bet there's thousands of have-a-go heroes out there who have used these substandard tools.

Andrew
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supersparky
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Re: Crimps
Reply #4 - May 14th, 2004, 10:07pm
 
they are crap....
every decent sparky will have a rachet crimper...not only faster but safer...
it was without doubt the best £25 ive spent in a long time...(at the time i brought them Wink)

ss

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HM
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Re: Crimps
Reply #5 - May 14th, 2004, 10:08pm
 
Hmm, mine cost about £19 as I recall.....

Andrew
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supersparky
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Re: Crimps
Reply #6 - May 14th, 2004, 10:11pm
 
yes but when and what make are they? what else can they do?
never judge something by price  Wink
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LSpark
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Re: Crimps
Reply #7 - May 14th, 2004, 10:42pm
 
[quote author=HandyMac  link=1084557435/0#3 date=1084567839]IMHO crimps are a waste of time unless you've got a proper ratchet crimper. The sheds sell toy crimpers which don't ratchet, and frankly I think they are potentially dangerous in so far that they tend not to give a firm crimp on the cable. I'll bet there's thousands of have-a-go heroes out there who have used these substandard tools.

Andrew
[/quote]

leave that to them, for people like us who know better and want correct compression for each crimp size, a ratchet is the only way, and jsut like we done use them neon screwdrivers as voltage indicators, its the same, any good proffesional only uses the best!
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LSpark
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Re: Crimps
Reply #8 - May 14th, 2004, 10:47pm
 
oh and 1 more thing, i have a newlec crimper, the best ratchet ive seen, i have 1 for 1.5mm up to 6mm, and another for the 10mm and 16mm crimps, but my mate wanted 1, so i found 1 about £10 was TLC i think, aposoultely crap, didnt crimp properly at all, so you do need to look out for which crimper as some ratchet crimpers can be just as bad as non ratchet, fancy that!  Roll Eyes
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securespark
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Re: Crimps
Reply #9 - May 18th, 2004, 1:21am
 
Well, MY ratchet crimper was only a fiver AND it can make the tea and it's useful if your g/f's tired, so ner ner ne ner ner!! Grin

On the subject of crimping solid strands, my lecturer was of the opinion that yes, copper is a soft metal and to crimp enough to make a secure enough connection, the conductor is flattened, reducing the CCC.

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LSpark
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Re: Crimps
Reply #10 - May 18th, 2004, 2:54am
 
hey secure spark!, nice to have you with us on this forum  Grin - nice to hear your crimper does the biz  Wink
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Beanzy
Re: Crimps
Reply #11 - May 18th, 2004, 7:12am
 
Lecturer is right about the copper, except there's more metal in the area of the crimp, due to the connector increasing the CCC of the joint. Only thing is it's weaker where it's squished so will not put up with any movement, so need to ensure well secure either side of crimp.
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woodsmith
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Re: Crimps
Reply #12 - May 18th, 2004, 7:13am
 
Have we gone full circle here??? and Securespark is saying his lecturer told him

Quote:
yes, copper is a soft metal and to crimp enough to make a secure enough connection, the conductor is flattened, reducing the CCC.


Therefore crimps shouldn't be used on solid conductors  Undecided
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rabbit_rabbit
Re: Crimps
Reply #13 - May 18th, 2004, 7:51am
 
No go ahead Woodlice me old mate, never ever had a problem myself and they are used in some pretty harzardous industries and have been tested to death.

If ya think ya may lose sleep over using them then as a double safeguard stick some heatshrink sleeve over the joint (both sides) and dont forget to heat it up and shrink it!! That's stop the B's coming out. And if ya completely worried then stick some damn fast setting araldite on the junction as a well and to make extra secure sink the whole lot in concrete, then ya could buy a second hand battleship and submerge the whole junction into that as well!!  Grin

No, just "crimp and go". But as everyone says DO use a good quality RACHET crimping tool

Ray
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woodsmith
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Re: Crimps
Reply #14 - May 18th, 2004, 12:30pm
 
Thanks Ray, I've been so worried about this, no sleep and lost me hair through it, so your a life saver mate. I'm a bit worried about the battleship solution, won't that make the joint inaccessible ??? Oh no more hair loss..LOL

Keith (the owner of a proper, venerable, ratchet crimper)

Putting rabbit netting round garden today to keep your mates out. My little joke with FWL about getting a DAWG to keep the rabbits out has backfired. They have eaten all the vegetables and the bl00dy dog is useless.
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LSpark
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Re: Crimps
Reply #15 - May 18th, 2004, 1:49pm
 
lol v funny Ray, you better go move ur wabbits along as 1 last thing for woodsmith  Wink  Cheesy
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rabbit_rabbit
Re: Crimps
Reply #16 - May 18th, 2004, 6:50pm
 
lol Keith / LS

We wabbits fear only one thing - the cunning little B of a sly fox, they are the Tony Blair of our wee world.

Veggies? love em especially when they are not mine curly kale makes me fart though so its only OK'ish.

Now carrots!! yummy and when they are a person dressed up as a carrot (Little Miss ..) well extra yummy (private joke that last bit lads sorry).

Keith - I have no hair - too many failed crimps I guess did it lol!!

Again I was only joking about woodlice mate..

Ray

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