We're on the '17 in Vermont , this new inclusion in 110.14 caused quite the flap
110.14(D) Installation. Where a tightening torque is indicated as a numeric value on equipment or in installation instructions provided by the manufacturer, a calibrated torque tool shall be used to achieve the indicated torque value, unless the equip‐ ment manufacturer has provided installation instructions for an alternative method of achieving the required torque.
Apparently someone just had to ask about torque wrench calibration.....and it all went off in the ozone with certifications and qualified testers, etc....
This one has many wondering where to purchase what's needed....>>
210.8(B) Other Than Dwelling Units. All single-phase receptacles rated 150 volts to ground or less, 50 amperes or less and three- phase receptacles rated 150 volts to ground or less, 100 amperes or less installed in the following locations shall have ground-fault circuit-interrupter protection for personnel.
But by far and large, the one '17 change that left everyone in class with that 'kicked in the pants' look was this>>>
215.2 A 1 Exception No. 2: Where a portion of a feeder is connected at both its supply and load ends to separately installed pressure connections as covered in 110.14(C)(2), it shall be permitted to have an allowable ampacity not less than the sum of the continuous load plus the noncon‐ tinuous load. No portion of a feeder installed under the provisions of this exception shall extend into an enclosure containing either the feeder supply or the feeder load terminations, as covered in 110.14(C)(1).
This is hard for me to 'splain , especialy w/o the HB pix .
I'd be willing to bet that the torque thing is just to make sure that everyone has one to use instead of trusting the torque standard that we were to at Ford which was "tighten it until it snaps...then back it off a quarter turn". Something tells me that nobody (except perhaps the truly anal AHJ's) will care about having a recent testing certification.