T
TheFishmonger
That is because the tails are stranded.
- Thread starter Amp David
- Start date
That is because the tails are stranded.
The last few posts about large stranded cables just enhance my point about the differences in bolted joints.
There are hard joints and soft joints and many in between.
"Generally" a solid core 1.0, 1.5, 2.5mm would be a relatively "hard" joint.
4.0, 6.0 and upwards will be progressively softer due to the deformation mechanisms related to the ductility and dimensions of the wire strands.
Hence my argument that no single torque value is acceptable.
There are hard joints and soft joints and many in between.
"Generally" a solid core 1.0, 1.5, 2.5mm would be a relatively "hard" joint.
4.0, 6.0 and upwards will be progressively softer due to the deformation mechanisms related to the ductility and dimensions of the wire strands.
Hence my argument that no single torque value is acceptable.
M
manda
I was actually considering eventually getting the Wiha torque set in the future. Reading this thread though, I'm fast considering saving my money! Thanks all! 
I always find it strange when fitting a new consumer unit it recommends checking the factory terminations for tightness and they always seem loose. It's not surprising if they are using such low torque values that they tell you to check the factory terminations
Thought about purchasing torque screwdrivers a while ago but came to the conclusion that they are possibly more trouble than they are worth
Thought about purchasing torque screwdrivers a while ago but came to the conclusion that they are possibly more trouble than they are worth
Most things that are torqued up to a predetermined value are usually subjected to regular maintenance, how many maintenance visits have been done on domestic consumer units to check the security of the connections
With this in mind how many times using the as tight as possible system do you find when returning to installations years later do you find loose connections a few times doing PIR's I've recommended that all the connections throughout are checked having found some that are very loose
On one industrial site I worked years ago they had a factory shut down every couple of years and every termination and connection was checked in all the switch rooms and plenty of them needed tightening to get back to the torque value
With this in mind how many times using the as tight as possible system do you find when returning to installations years later do you find loose connections a few times doing PIR's I've recommended that all the connections throughout are checked having found some that are very loose
On one industrial site I worked years ago they had a factory shut down every couple of years and every termination and connection was checked in all the switch rooms and plenty of them needed tightening to get back to the torque value
I just looked at sets of these torque screwdrivers in two different wholesalers locally and C.K. ones came out £95. and Schneider ones at £96 with a retail of £206 !! and the c.k. ones are not at all insulated whereas the others are. My little counter monkey informed me that it is wholly illegal to NOT use them now and all Main D.P. switches must be 2.3 Nm and all Rcd's and Mcb's etc at 1.7 Nm whereas before I always tightened to a reasonable torque and pulled gently to make sure cables were securely connected. ?????
P
pennywise
If anyone is still thinking about buying the wiha ones, wera have their own one coming out that has the torque setting adjuster built in so you don't lose the bloody torque setting tool. Gutted I bought the wiha ones now, this was at the beginning of last year mind you.
I've had a set of Wera torque screwdrivers in our workshop for a while now, they adjust by hand within a certain range. To cover all the ranges I had to buy 3 of them, one covers 0.3-1.5Nm, one for 1.5-3.0Nm and one for 3-5Nm. (figures are approximate from memory) I have no complaints about them, they're easy to use and they've survived well with daily workshop use plus they've stayed in calibration.
P
pennywise
I don't think they're VDE, we don't use them on live equipment only for panel assembly. We went with the Wera because they're ESD compliant which is important for some of the components we use. Here's an RS components link
S
Stuuk1
Got handed a set of these the other week at work, fantastic bit of kit but unfortunately doesn't have a small terminal driver..
I have just bought a set of the Wiha 2872. Yes you have to set the torque for each setting with the supplied tool. The slim bits fit very easily in all the mcb/rcd's etc I've tried. By the by, the set I purchased from an online tool supplier, was faulty. I rang Wiha UK to seek advice, and they sent me a replacement free of charge through the post. Can't beat that for service.
D
Dangeruss99
Hi there , does anyone know the quality of the schneider set ? I'm thinking about buying them but now sure
Looked at the Schneider one yesterday and it may well make sense if made by Wiha as they look almost identical, they have a seperate screwdriver handled looking allen key tool to insert up the centre of the torque handle to set the torque figure. Nice zip up case and the Schneider definately has a small terminal too maybe 3.5 or 4mm blade width.
Yep mate you're bang on there ;-)
Wiha indeed do make the set for Schneider although I will look again as the Wiha apparently may not have a small flat terminal driver ??
S
Stuuk1
My set didn't. Although mine is the torque set so other sets may differ
OFFICIAL SPONSORS
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
Advert
Thread Information
Thread Tags
Advert
Advert
TrueNAS JBOD Storage Server
-
-
Understanding TrueNAS JBOD Servers: A Comprehensive Guide- Started by Dan
- Replies: 8
-
