How tight is tight.

[Kyran]

Ok so we all know we should do good connections, tight so they don’t creep out of create loss connections.


I know that there is a specified newton tightness but looking in the BGB I can’t see the value and i looking in the wrong place.


reg 526.1 “every connection between conductor or between a conductor and other equipment shall provide durable electrical continuity and adequate mechanical strength and protection.”


Thats all great but how tight should it be?


Can anyone point me at the right reg/value.


Thanks

 

[Stu1312]

All connections should be tightened to the torque stated in the manufactures instructions, there isn't a one value suits all for what a connection should be tightened to.

 

[Anthony S]

What exactly are you tightening up ?

 

[Kyran]

What exactly are you tightening up ?

Well it was a though related to the plastic/Metal CU argument going on at mo.

So if you were using MK CU they would have it in there literature in the box then?

 

[Kyran]

All connections should be tightened to the torque stated in the manufactures instructions, there isn't a one value suits all for what a connection should be tightened to.

So it is, just looked in the the box of a waterproof CU i have in the cupboard and sure enough in the first flap "installation" its as terminal bar 1-1.5 Nm and RCD/MCB 2-2.5Nm

Should have look there first

Thanks. Its just one of those regs that just refers to to the manufactures. Ops thanks peps.

 

[Leesparkykent]

So it is, just looked in the the box of a waterproof CU i have in the cupboard and sure enough in the first flap "installation" its as terminal bar 1-1.5 Nm and RCD/MCB 2-2.5Nm

Should have look there first

Thanks. Its just one of those regs that just refers to to the manufactures. Ops thanks peps.

well they weren't going to exactly list every make and model of consumer unit along with the required torque setting in the BGB/BYB were they lol

 

[Kyran]

well they weren't going to exactly list every make and model of consumer unit along with the required torque setting in the BGB/BYB were they lol

no there weren't going to. ops another case of think before one opens mouth (taps keys loudly)

 

[Leesparkykent]

no there weren't going to. ops another case of think before one opens mouth (taps keys loudly)

I've learnt that one myself on this forum also lol

 

[stevey1983]

Why not? They will be able to do updates every month then and make more money from us

 

[Anthony S]

I've learnt that one myself on this forum also lol

Yer, you don't want the real big boy's coming in heavy after a book worming session lol

 

[Andy78]

Tight enough so it doesnt fall out or move in its termination, but not so tight as it causes damage to the cable.
Done

 

[baldsparkies]

When its yer mates round, and he decides to go for a pee.
Now that's what I call very tight !! :smilewinkgrin:

 

[ruston]

no there weren't going to. ops another case of think before one opens mouth (taps keys loudly)

Just given yourself away for not reading the fine print lol. When all else fails look at the instructions.

 

[VoltzElectrical]

The only time I used a torque screwdriver I was surprised how tight the MI stated value was. It was WAY more tight than the maximum setting on the impact driver I usually use.

 

[shanky887614]

there is oo er tight then hernia tight.

 

[R G]

Tight ? , you want to visit Norfolk , better still , no you don't not really ...

 

[7029 dave]

Dave tight is good enough trust me. lol

 

[Adam W]

I've never used a torque screwdriver, and I've never envisaged having to use one in a domestic situation.
I always thought it was something you just get a feel for, like knowing how much pressure to apply on a cable to strip the insulation off but not cut right through it.

 

[Tidy Max]

The only time I used a torque screwdriver I was surprised how tight the MI stated value was. It was WAY more tight than the maximum setting on the impact driver I usually use.

Impact driver?? What are you using that on?

 

[Andy78]

Impact driver?? What are you using that on?

Something he doesn't give a ---- about ?

 

[PEG]

...And what do you do when it's torqued up to the recommended setting,and it is not enough?

Leave it loose,or wonder why you bought one...:conehead:

Torque screwdrivers have their place,but not in the normal sparks remit...

I haven't got a device to measure how full my bladder is,either....i just seem to know :joker:

 

[Jonspark]

Use the correct size driver and get tight without screwing the bollox off it, then give the wires a wiggle and check tightness again.
In industrial environments there's usually a planned maintenance system in place to check connections are tight at set periods. lose connections can also be found when conducting a thermographic inspection.

 

[Geordie Spark]

...And what do you do when it's torqued up to the recommended setting,and it is not enough?

Leave it loose,or wonder why you bought one...:conehead:

Torque screwdrivers have their place,but not in the normal sparks remit...

I haven't got a device to measure how full my bladder is,either....i just seem to know :joker:

Class! ............. Just pure Class!.. and it's a damned good analogy!! :yes:

 

[Jonspark]

...And what do you do when it's torqued up to the recommended setting,and it is not enough?

Leave it loose,or wonder why you bought one...:conehead:

Torque screwdrivers have their place,but not in the normal sparks remit...

I haven't got a device to measure how full my bladder is,either....i just seem to know :joker:

I have, or should I say the nurse who empties it has.