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solar guy
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I know this is an oddball question
But does anyone have or know how to get a copy of the 1968 NEC.
Here's Why
My wife is doing an investigation into violations at a quarry that is goverened by the Mine safety and health administration. The last code they adopted for electrical is the 1968 NEC for mining and quarrying operations.
I realize that this is an antique book but any help locating one would be appreciated.
 

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I own stock in FotoMat!
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I know this is an oddball question
But does anyone have or know how to get a copy of the 1968 NEC.
Here's Why
My wife is doing an investigation into violations at a quarry that is goverened by the Mine safety and health administration. The last code they adopted for electrical is the 1968 NEC for mining and quarrying operations.
I realize that this is an antique book but any help locating one would be appreciated.

What do you need out of it?
 

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Super Moderator
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11,965 Posts
I know this is an oddball question
But does anyone have or know how to get a copy of the 1968 NEC.
Here's Why
My wife is doing an investigation into violations at a quarry that is goverened by the Mine safety and health administration. The last code they adopted for electrical is the 1968 NEC for mining and quarrying operations.
I realize that this is an antique book but any help locating one would be appreciated.
480 Sparky has an incredible collection of old NEC's. (Even an 1897) which I didn't realize had been updated.:laughing:
 

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I am new here but since I am a mine electrician I'll take a stab. There is always confusion on what governs what when it comes to electrical in a MSHA environment. Miners claim that the NEC doesn't apply to them or only the '68 code applies. However if you look at the CFR it is clear.

First the NEC states that the code doesn't apply to mining equipment and trailing cabel. Second the CFR states that the electric conductors should meet the minimum current carrying capacity outlined in the '68 code. The reason for this is the tables in the '68 code haven't changed because they were pre-engineered and current ampacity then is the same as it is now. Therefore, by looking at the tables in a current NEC, you still are using that part of the '68 code. Finally, and this is where everyone seems to lose it, the CFR also states that for all wiring and electrical equipment (except for the above mentioned) installed after june 30, 1971 shall meet the requirements of the NEC in effect at the time of installation.

So if your wife is looking into electrical violations, all she needs is a copy of the CFR and a current NEC. Basically if it isn't moble mining equipment or trailing cable then all electrical work (substations, buildings, lighting, etc.) needs to comply with the NEC in effect at the time it was installed. Now many will disagree. I work in this evnvironment and understand the attitude towards the NEC, but the code is clear. It is never enforced because the MSHA inspectors are only familiar with MSHA training and don't understand the NEC. At some point that will change and when it does citations will pile up. Hope this helps.:no:
 

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I own stock in FotoMat!
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.........Second the CFR states that the electric conductors should meet the minimum current carrying capacity outlined in the '68 code. The reason for this is the tables in the '68 code haven't changed because they were pre-engineered and current ampacity then is the same as it is now. ......
And what Tables would those be?
 
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