How do AHJs know which mark or service provides compliance with the NEC?
An electrical inspector or any user of electrical equipment must be confident that the product meets the requirements of the standard.
Electrical inspectors have a significant responsibility in the approval process and the testing labs, which are featured in this issue, provide a mechanism to assist in that process.
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 first thing one notices about Article 305, Temporary Wiring, in the 2002 National Electrical Code is that it is no longer there!
Revisions made by CMP-1 on 110.26(F)(1) address the question of what can be installed in dedicated electrical space
Installations and inspections of corner-grounded systems can be a bit intimidating both to seasoned veterans and to students of the Code.
Some electrical industry professionals work for several years in the business, and then desire to move into the field of electrical inspection, an important and necessary aspect of the electrical trade.