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#86892 - 12/22/03 09:40 AM Rubber mats in front of swithgear  
Yoopersup  Offline
Member
Joined: Mar 2003
Posts: 822
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

#86893 - 12/22/03 06:05 PM Re: Rubber mats in front of swithgear  
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.


#86894 - 12/22/03 06:19 PM Re: Rubber mats in front of swithgear  
iwire  Offline
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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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