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#147733 - 01/17/03 07:40 PM Electrical Safety Tags?
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
Over here in New Zealand, we are required to test each and every portable appliance in a
commercial and Industrial workplace and affix a plastic safety tag to the flex on the said appliance.
This is a relatively new concept over here, but good all the same, but testing these things every 3-6 months, does become a pain,
especially if you only do Commercial and Industrial work.
Is there a similar system in place in your country?.
Your comments, please-
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

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Arc Flash PPE Clothing, LOTO & Insulated Tools
#147734 - 01/17/03 07:56 PM Re: Electrical Safety Tags?
txsparky Offline
Member

Registered: 05/25/01
Posts: 578
Loc: Magnolia,.Texas U.S.A.
Never heard of 1 here in the south.

Well I have seen inspection stickers on medical equipment but I'm not sure what all is tested or how often.

[This message has been edited by txsparky (edited 02-09-2003).]
_________________________
Donnie

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#147735 - 01/18/03 03:53 AM Re: Electrical Safety Tags?
pauluk Offline
Member

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
Yes, there is a requirement for regular appliance testing in workplaces in the U.K.

As I'm not involved with anything above very light commercial work, I don't know how vigorously or otherwise it is enforced by our HSE (Health & Safety Executive).

Certainly in the small retail shops, pubs, etc. around here you'd have a hard time finding a recent test sticker on most of their equipment.

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#147736 - 02/09/03 04:32 PM Re: Electrical Safety Tags?
OSHA Professor Offline
Member

Registered: 12/06/02
Posts: 50
Loc: Chicago
Trumpy & Pauluk,
Can you provide information on what specifically is required for the testing?
Are you required to test for say equipment grounding conductor continuity similar to the "assured equipment grounding conductor program" required / per NEC article on Temporary wiring or are the appliance tedsting requirements you mention more detailed? Insulation testing ? Megger ? Hi Pot tests?
Any info on this would be greatly appreciated.
OSHA Professor - Grizzy

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#147737 - 02/09/03 09:07 PM Re: Electrical Safety Tags?
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
Grizzy,
Over here in NZ, we have a Standard, called
AS/NZS 3760, that tells us what is required for these tests, and also how often they should be done.
Try, www.ess.govt.org.nz, not sure if it is there are not.
But, long story longer, when testing appliances, it depends upon what Class of
Equipment it is:
Class I: Earthed, with metal casing.
Class II: Double Insulated, with non-conductive casing, but may have exposed metallic parts, which are isolated from Earth.
Class III:Protected by RCD(GFCI).
Now, for a Class I appliance, a Resistance test with an Ohmmeter, between the Earth pin of the Plug and the Metal case of the said appliance, this must not be any higher than
0.5Ohm, for safety reasons.
Also, an Insulation Resistance Test, using a Megger, should be applied, by bridging out the Phase and Neutral pins of the plug and connecting the other lead to the Earth pin of the plug, anything less than about 100Megohms, should worry you.
Finally, with Class II appliances, there is really only the Insulation Resistance test, that can be done on these appliances,but the probe that would normally be fitted to the Earth pin is connected to any exposed metal,(like Drill chucks, etc), a very high reading is expected from this test,(>200MOhms).
A Class III appliance, is tested in the same way as the Class I appliance, except the RCD is disconnected first and tested seperately,with a dedicated RCD(GFCI)tester.
As a side note, when doing any appliance testing, it is good practice to check the
appliance for physical faults, too, especially with flexible cords, run the whole length of the flex, through your closed hand, any irregularities, felt, should be checked.
Hope this helps.

[This message has been edited by Trumpy (edited 02-10-2003).]
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

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#147738 - 02/10/03 08:45 PM Re: Electrical Safety Tags?
SvenNYC Offline
Member

Registered: 08/19/02
Posts: 1685
Loc: New York City
 Quote:
Over here in New Zealand, we are required to test each and every portable appliance in a
commercial and Industrial workplace...


Trumpy:

Would this also apply to the small electric radio, lamp or pencil sharpener sitting on ... say a secretary's desk?

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#147739 - 02/11/03 06:01 PM Re: Electrical Safety Tags?
pauluk Offline
Member

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
They're similar requirements here: Insulation test, earth continuity test for grounded equipment, and yes, a high-pot "flash" test for some equipment.

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#147740 - 02/12/03 09:15 PM Re: Electrical Safety Tags?
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
Sven,
Yes, if it means that safety compliance is achieved, then that's just the way life is.
This is just how silly things have got, in the world of safety practices, over in this neck of the woods!.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

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#147741 - 02/15/03 03:05 PM Re: Electrical Safety Tags?
OSHA Professor Offline
Member

Registered: 12/06/02
Posts: 50
Loc: Chicago
Thanks Gentlemen,
Couldn't get to the URL.
The requirements you outline certainly go beyond the NEC, in terms of testing to verify the requirements. For class I,It's is very similar to the assured equipment ground program.

The majority of industrial electrocution accidents & fatalities here in the US among unqualified electrical workers (general worker population) are due primarially to one primal causal factor --lack of sufficient grounding. Il be willing to bet that those high statistics are not the case in New Zeland.
BTW can you qualified electrical folks guess what is causing 80% of the electrically related accidents and fatalities among qualified electrical workers here in the US ?
Thanks again for the information.
Regards,
OSHA Professor

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#147742 - 02/15/03 06:00 PM Re: Electrical Safety Tags?
txsparky Offline
Member

Registered: 05/25/01
Posts: 578
Loc: Magnolia,.Texas U.S.A.
 Quote:
BTW can you qualified electrical folks guess what is causing 80% of the electrically related accidents and fatalities among qualified electrical workers here in the US ?


Disregarding safety procedures and lack of PPE would be my answer.
_________________________
Donnie

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