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#149092 - 06/29/03 11:13 PM Lock-Out Mechanisms?
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Where you work,
How do you make sure that the Circuit-Breaker, that you have just isolated or the HRC fuse is not replaced on you?.
With using HRC fuses, there is no real way (I feel), apart from taking the fuse carrier AND the fuselink with you, if you are working at a site, remote from the supplying panel.
How would you normally lock-out a proprietary Circuit Breaker?.
Any thoughts on this subject, would be greatly encouraged.
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#149093 - 06/30/03 03:02 AM Re: Lock-Out Mechanisms?
pauluk Offline
Member
Registered: 08/11/01
Posts: 7520
Loc: Norfolk, England
This isn't usually a problem in the sort of small-ish premises in which I work, but if I feel that there might be a risk of someone re-closing a breaker I'll take a few minutes to remove the panel cover and physically disconnect the wire.
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#149094 - 06/30/03 04:43 AM Re: Lock-Out Mechanisms?
sparky806 Offline
Member
Registered: 12/07/02
Posts: 59
Loc: Shawnee, KS, USA
It's simple. Each of my guys has been issued a lock out/tag out kit, and is required to use it. He/She is the only person allowed to have a key to their lock. If locking out is impossible, then remove wires from sorce, but still required to "tag out" the equipment.

I was working on some 480 volt hi-bays a few years ago, and caught an employee of the customers trying to break my lock off of the panel to turn the lights back on. After he was arrested for criminal damage to property, he was sent to the unemployment line.
Richard
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#149095 - 06/30/03 03:44 PM Re: Lock-Out Mechanisms?
pauluk Offline
Member
Registered: 08/11/01
Posts: 7520
Loc: Norfolk, England
Sheesh.... Some people!

I wonder whether he thought somebody had put the lock there just for the fun of it?
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#149096 - 07/01/03 03:09 AM Re: Lock-Out Mechanisms?
PCBelarge Offline
Member
Registered: 06/08/03
Posts: 681
Loc: Dobbs Ferry, NY, USA
Sparky806

The frightening part of your story is it is not only enough for us to be trained in lockout/tagout, but what about the untrained trying to remove the lock? I was an apprentice working with a mechanic, and we were working on 277v lighting. we had turned off the breaker, but not locked or tagged. We were in the building alone ( new building, punchlist). All of a sudden he started bouncing around the 2x2 ceiling grid like a top (the building super saw the breaker off, and turned it back on). At first I thought he was fooling around, finally I had to pull the ladder from under him. He broke his leg and sustained multiple burns. I have been a safety nut ever since.

Pierre
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#149097 - 07/11/03 10:48 PM Re: Lock-Out Mechanisms?
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Here's a picture of a typical Lock-Out tag,
that we use over here.



It's made out of a special type of paper that has plastic mixed with it, so it won't tear!.(I've tried it.)
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin
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#149098 - 07/12/03 03:10 AM Re: Lock-Out Mechanisms?
pauluk Offline
Member
Registered: 08/11/01
Posts: 7520
Loc: Norfolk, England
Interesting tag for New Zealand. It looks much more like an American tag than anything used in Britain.
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#149099 - 07/13/03 10:14 AM Re: Lock-Out Mechanisms?
Scotts Offline
Member
Registered: 01/17/02
Posts: 209
Loc: Ventura, CA, USA
OSHA also mandates that the tag has to be attached with a non reusable "thing?" that is capable of withistanding 50 pounds of force. Sorry for the thing word, having a brain fart right now. The reson is do that it is harder for an unathorized person to take off the tag. Basically they mean a 1/4" wire tie. If the tag is put on with some string, or wire, it is easy for somone to undo the knot and remove the tag.

I received a catalog from a sign company that was selling the tags you pictured. However they had wire in the eye for people to use when attaching the tag. I e-mailed them about it and said they were selling something that is non-compliant. In their return e-mail they blew me off.
Scott
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