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Nuvo
Hi all my assesment for nic eic a friend has told me i need a torque screwdriver and the board terminals must be tourqed is this true?
Discuss Torque Screwdriver in the UK Electrical Forum area at ElectriciansForums.net
Just say it's been sent of for calibration and your not yet got it back. But I was never asked about it when I was with napit
I did have a idea of installing some 2" screws in some hard wood at different torques all labelled up then this could be used to prove the settings on it say every month or so
This is a joke yeah?
How on earth would you prove anything about a precision instrument with a bunch of screws in a block of wood?
To me, the whole idea of using a precision instrument like a torque screwdriver on the poorly made screws & busbars that are the norm nowadays is one of the biggest jokes ever!!!
I just don't bother!
I own torque wrenches, but I have only used them for various jobs on the landrover like working on the brakes and rebuilding the top end of the engine.
Exactly what they're intended for.
Any skilled person who needs a torque screwdriver to tell him when a screw is tightened properly is in the wrong job!!!
It's not just that, it's the variation in torque required depending on the type of conductor you put under the screw. The torque you use on a 16mm coarse stranded conductor would cut right through a 1mm solid conductor yet we're all supposed to tighten every terminal to the same torque???
I did have a idea of installing some 2" screws in some hard wood at different torques all labelled up then this could be used to prove the settings on it say every month or so
I was having a look at hager's and they specify torques for different cablesIt's not just that, it's the variation in torque required depending on the type of conductor you put under the screw. The torque you use on a 16mm coarse stranded conductor would cut right through a 1mm solid conductor yet we're all supposed to tighten every terminal to the same torque???
Would you be using a calibrated piece of wood to build this torque checking device?
I was having a look at hager's and they specify torques for different cables
Interesting, I wonder if they've improved the terminals and screws with proper threads so that the torques can actually be applied properly? Maybe they'll even do away with the crappy cage clamp terminals!
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