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Rubber mats in front of swithgear #86892
12/22/03 08:40 AM
12/22/03 08:40 AM
Y
Yoopersup  Offline OP
Member
Joined: Mar 2003
Posts: 840
Michigan
One the Ohio masters exam one of the Questions is at what Voltage is a rubber mat required in front of the gear???
Can anyone point out that section for me???
Thank you

2017 / 2014 NEC & Related Books and Study Guides
Re: Rubber mats in front of swithgear #86893
12/22/03 05:05 PM
12/22/03 05:05 PM
B
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
The 'correct' answer is probably something like http://www.whsalisbury.com/blankets/images/blankets.pdf Page 14 states: “Tested to 20kV — Maximum use 17,000V”.

That is an incredibly stupid exam question, based on a cryptic ASTM Standard. Knowing that sort of minutia does not demonstrate any significant trade knowledge.

Re: Rubber mats in front of swithgear #86894
12/22/03 05:19 PM
12/22/03 05:19 PM
I
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
But you knew it..... [Linked Image]


One of my journeyman's test questions was how to convert Fahrenheit to Celsius.

It is in the code book both ways and if I need the formula I can find it.

This demonstrates trade knowledge how?

Bob



[This message has been edited by iwire (edited 12-22-2003).]


Bob Badger
Construction & Maintenance Electrician
Massachusetts

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