How do AHJs know which mark or service provides compliance with the NEC?
For structures taller than sixty feet, the extreme wind loading applies to the structure and all the supported facilities. Lets crank through an example calculation.
Fifty years ago, pinsetter machines, or bowling machines, was a mechanical marvel, easy to operate, quick to repair, and built to last. What happens when you have to inspect an old one?
The most significant change to the 2002 National Electrical Safety Code (NESC) is in the strength and loading requirements for aerial electric distribution and transmission facilities.
The first thing one notices about Article 305, Temporary Wiring, in the 2002 National Electrical Code is that it is no longer there!