Crimps: follow-up from 'very stupid'

[milkman]

See previous:
//www.diynot.com/forums/viewtopic.php?p=838328#838328


Have purchased ratchet crimpers and yellow crimps and have been practising like a mutha.

cable is 6 mm. Using red crims for connecting earth wires.

Question: the crimps are very solid under strain from pulling but give with a click ever so slightly when pushed together. When I say slightly i mean by a gnat's crotchet. Is this a big deal?

Also Tyco's PDF on crimping describes a bend test performed on crimped but unstripped wire. This works fine with the red crimps but not even close on the yellows. What gives? As I said test the practice pieces are shaping up nicely

http://ecommas.tycoelectronics.com/...114-2157DpdfEnglishENG_SS_114-2157_D.pdf

 

[streetlighter]

If the cable is 6mm2 you will need Yellow crimps

 

[milkman]

If the cable is 6mm2 you will need Yellow crimps

yes but not for the earth

 

[ban-all-sheds]

Have purchased ratchet crimpers and yellow crimps and have been practising like a mutha.

Have you also purchased heat-shrink tubing?

 

[briwire]

are you sure that the tiny movement is not just the metal tubes moving slightly inside the yellow plastic.

 

[milkman]

are you sure that the tiny movement is not just the metal tubes moving slightly inside the yellow plastic.

Don't think so. Last thing last night I did a loop with three staggered joints and the thing is way tight so i'll eave it. only one end on one of the three does this and its negligble.

Have purchased ratchet crimpers and yellow crimps and have been practising like a mutha.

Have you also purchased heat-shrink tubing?

Getting it this AM.

Thanks be to the forum. Its brlliiant

 

[daytona]

Thanks be to the forum. Its brlliiant

i like this geezer

 

[GaryMo]

If its 6mm t&e then the CPC will be 2.5mm and will require blue crimps.

4mm t&e had a 1.5mm conductor which requires red crimps.

 

[milkman]

If its 6mm t&e then the CPC will be 2.5mm and will require blue crimps.

4mm t&e had a 1.5mm conductor which requires red crimps.

CPC: is this what I would call the earth wire? What does t&e mean?

 

[fleming'slefthandrule]

CPC is the circuit protective conductor, commonly known as the earth wire.
t&e is twin and earth cable.

 

[milkman]

grrr just got to screwfix in time! to get some blue crimps

when applying shrink tubes do you follow the colour of te wires or the colour of the crimps? Or do you just shrink wrap the whole lot?

 

[milkman]

also how strong do the crimps have to be?

the next to last practice piece just failed but only after putting my foot into thhe loop i'd made and pulling with both hands.

 

[ricicle]

the next to last practice piece just failed but only after putting my foot into thhe loop i'd made and pulling with both hands.

Where are you going to joint this cable?

 

[milkman]

its a repair and under a floor running between joists . There's plenty of slack in the cable ends so i se no reason why it should come under any abnorma stress.

 

[milkman]

Crimps are crimped shrunk wrapped and choc boxed. Thanks to everyone for your help on this.

Marko