crimping

[m25maintenance]

lads u know d new regs say all stranded cables must be crimped now, u know the wires in plugs are now crimped on the ends. where can i buy the butts

 

[Spudnik]

Try a search for bootlace ferrules.

Should throw back plenty of info

 

[ringer]

Is this only stranded wires when used in the installation, or does it also apply to plug connections on the flex fitted to appliances? Which regulation refers?

 

[m25maintenance]

i don't know the reg but i know that we should be doing it

 

[Hawk81]

i don't know the reg but i know that we should be doing it

why? I dont see anything wrong with the way we've been doing it for years. But i am willing to learn and adapt.

 

[m25maintenance]

open a new plug and av a look, they say is helps stop lose wires and heat damage

 

[ringer]

I was under the impression that manufacturers automatically fit ferrules with their wire stripper machine to make fitting the flex to the plug more efficient, not that there was any particular requirement for it. The COP (electrical equipment) says 'there should be no loose strands' - so by implication, we would expect to find cables without ferrules.

 

[m25maintenance]

ok thanks

 

[Martie_uk]

I've not heard of this being a reg. I use ferruels on larger stranded/TRI raited cable for piece of mind to ensure I am getting a mechanically sound connection and to ensure no strands are exposed. I would be interested to know different tho.

I've been meaning to buy one of these bad boys (as i use alot of stranded cables mainly terminated into Din rail terminals) but they are £££ Weidmuller | Connectors | Accessories | Connector Tooling | Bootlace Ferrule Strips |9021920000

 

[netblindpaul]

Martie,
Don't bother unless you are doing 100's per day <2.5mm sq.
Have used them and still prefer seperates!

Paul

 

[Martie_uk]

Cheers Paul, i'll take that on board!

 

[rwb]

Does this mean we now have to fit crimps to 25mm tails.

 

[jamie-spark]

Guys
ferruels are a requirement by BS7671
check out page 107 re 526.6

 

[pennywise]

Does this mean we now have to fit crimps to 25mm tails.

If it's Tri rated 25mm, though you would only use it if it were enclosed along it's entire length as it's not double sheathed you would most likely use 16mm as it's rated for 100amps.

 

[jamie-spark]

pennywise
thought the minimum size for tails from a meter was 25mm

 

[pennywise]

sorry was thinking more on the lines of a DB feed from a panel board with a trunking system, 25mm tails doesn't count as having fine cores, and 25mm is the recommended for DB upgrades etc.

 

[jeremy]

I didn't think plug tops were covered by the regs as they are not part of a fixed installation. Could be wrong though; it wouldn't be the first time today!