Torque settings - hmm

[Madocks]

Bought a torque driver today, any clue on recomended values for connector blocks, henleys, MCB ?

I imagine its cable size dependant? Anyone have a quick table i can print and laminate?

Please dont say manufacturer instructions! would be poop!

 

[telectrix]

Every year the assessor goes over all the sample cu terminals and checks them for tightness by the arm & wrist method.

i'd torque to him about that.

 

[1Justin]

[QUOTE="
I imagine its cable size dependant? Anyone have a quick table i can print and laminate?
[/QUOTE]
It's very cable size depentent. CU manufacturers are (IMO) remiss not to always point that out clearly (some do). OK for bus bars and fat cables, but applying the "recommended" torque into a screw-down N or E terminal on domestic lighting can easily do this (pic). I've been called out and have come across CU with cables snapped right off. I often take the time to trim and re-dress the ends where I see this (which is quite often nowadays with the promotion of torque drivers).

 

[Pete E]

Just curious, but what Nm range should an electricians torque driver be rated?

 

[Squid]

I don't know why but the line "all the gear no idea" just jumped in to my head...... ;o))))

 

[ipf]

i'd torque to him about that.

Yep, seems to me like someone should get a tighter grip of all this crap..

 

[benji]

Bit off subject but Toyota operatives working on new hydrogen cell engines use bluetooth torque wrenches that report back to a central computer

 

[ipf]

Bit off subject but Toyota operatives working on new hydrogen cell engines use bluetooth torque wrenches that report back to a central computer

I have one in my right hand that reports back to the central computer in my yed.

 

[Andy78]

All this torque driver nonsense winds me up tight.

They are of no benefit whatsoever if termination techniques are not properly practised. You can easily make a defective connection with a torque driver if incompetent enough.

 

[pirate]

Couldn't agree more Andy78! Many on here talk about "knowing the torque" and I truly believe they do, from years of experience. I fondly believe one instinctively knows when something is right...

We know some cables "creep", some soldered connections do particularly, some fine-stranded are susceptible to being over-tightened etc etc...
I am no expert, I just do 'em up...pause a while, then just check 'em again...that's what my dad taught me 50 years ago, and it has been good advice, from home, to caravan, to extreme marine use on 12v DC...
Amateur, maybe...never known a failure yet, but seen loads...
usually on 2.5 rings where the sockets are not tightened properly. Frankly, they need to design those terminals better, but that's another story.

Get a torque driver, keep it in your toolbag and produce it if asked...but I believe you should trust your hand and wrist first of all.

 

[Squid]

Its like being in the North again on a night out with the Northerners, all torque and no action and us smooooooth Southerners move in and cop of with the Northern lasses..........

 

[sparkdog]

What, lasses with torque drivers?

 

[Squid]

What, lasses with torque drivers?

Feels like it when they get hold of your 'tool"

 

[ipf]

Its like being in the North again on a night out with the Northerners, all torque and no action and us smooooooth Southerners move in and cop of with the Northern lasses..........

Hey......not as easy as us up here copping OFF wiv an Essix biooty.

 

[telectrix]

Hey......not as easy as us up here copping OFF wiv an Essix biooty.

problem there is scraping off the make-up to see what you've got. like lancashire hotpot. you need to scrape off the grease to see what the meat's like.

 

[ipf]

problem there is scraping off the make-up to see what you've got. like lancashire hotpot. you need to scrape off the grease to see what the meat's like.

Suppose so....typical scouse, mind you....eating a hotpot cold.