N Nuber State Certified Practitioner of Electrical Arts Location Colorado Occupation Master Electrician Mar 8, 2017 #1 If a UL listed piece of equipment has an installation manual that instructs a non compliant NEC installation, which document has precedence the NEC or the manufacturer's instructions?
If a UL listed piece of equipment has an installation manual that instructs a non compliant NEC installation, which document has precedence the NEC or the manufacturer's instructions?
G GoldDigger Moderator Staff member Location Placerville, CA, USA Occupation Retired PV System Designer Mar 8, 2017 #2 NEC, unless you can convince the AHJ that it is just as safe or safer. Most instruction conflicts are the result of misguided (unsafe) instructions. Among other things instructions cannot cover different cycles of NEC in different locations.
NEC, unless you can convince the AHJ that it is just as safe or safer. Most instruction conflicts are the result of misguided (unsafe) instructions. Among other things instructions cannot cover different cycles of NEC in different locations.
