brightspark
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handy for checking a bunch of live cables and you turn the power off to the one u want to connect to and run it across them and see which one goes dead and thats the one
Usually pretty big 3ph flange/foot mounted gear
I’d rather use a multimeter
In a word no, a voltstick will not indicate if a motor is still connected but not running.
There are no regulations (unless somethings changed) but good practice is to fit a local point of isolation within 2 metres of the motor, either a lockable isolator or a commando type plug that can be removed, lockoff covers can be used on the removed plug.
All said, the person responsible for locking off and signing is responsible in law, unfortunately that is small compensation for loss of limbs or life
Regs specify must have isolation to rotating machinery good old Victorian name for motors.
Can you point me to the reg No. please, I had a quick look, but as I haven't needed them for a few years, I'm a bit rusty
barthroom fans do not need isolators if a mcb is fitted at the db on that circuit and on the same floor as the fan .its classed as the isolator. i generaly fit them anyhow only time you need them is if there on a different floor or on commercial premises where the fan is on the roof and the controls is in the buildingWill do tomorrow
Its the sole reason bathroom fans have isolators
That's handy as I've forgotten to fit one on the utility room fan and the building inspector still needs to sign the house off!barthroom fans do not need isolators if a mcb is fitted at the db on that circuit and on the same floor as the fan .its classed as the isolator. i generaly fit them anyhow only time you need them is if there on a different floor or on commercial premises where the fan is on the roof and the controls is in the building
This would be used just as a quick visual test in conjunction with a lockout/permit procedure...
Usually prior to doing unrelated work.
It wouldn't really be viable to start pulling covers off and using test leads/meters.
The work wouldn't involve electrical, and as not electrically trained thats probably more dangerous.
For machinery, EN 60204-1:2018 section 5.3.3 shows the requirements. There is no set distance as others have said, it just needs to be clearly identified.Can you point me to the reg No. please, I had a quick look, but as I haven't needed them for a few years, I'm a bit rusty
Can you point me to the reg No
That reminds me. Found mine a few weeks ago. Must pop it on the van.volt stick is useful for taking up room in your toolbox. at a minimum you want something like this
View attachment 264981
its a pita to have to check, but a lot less inconvenient than being dead
When I worked for Pilkington our senior Elec engineer on site "took early retirement" due to him not isolating an annealing oven correctly - a contractor had his hand inside and touched a live busbar and ended up badly burned as a result, though he was fortunate to still be alive.Do you not trust the PTW isolations on the site where you're working?
I understand where you're coming from completely - a multimeter just isn't right in this circumstance. But then, IMHO a volt stick isn't either - too many possibilities for false positives/negatives.
If there's dodgy isolation practices, you'll have to raise it with management.
A few years ago, we had a terrible sparky on site... he ended up being told to resign, or he would be sacked... a couple of times he'd signed for isolations that he hadn't carried out... we were lucky no-one was hurt
there not to be relied up on only as an indicator rub it on your pullover and it will light up use proper test leads for anything electrical even if someone tells you the powers off or its marked on the board and you turn it off even ive had it where the db chart has been marked up wrong and stuff is still live when you've had as many shocks as ive had you wont want to be putting your fingers in without knowing. i work live often but i know its live thats why ive lived so long in the game