- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
... under the nec...
It has nothing to do with installation standards.
It has to do with electrical safe work practices. Basically OSHA requires work environment where the employee is made aware of the hazard and has received proper training and procedures to minimize injuries while performing live work.
For most US employees, creating a 'defensible' set of live work practices is a daunting task, so they defer to an industry consensus standard like NFPA70E. The primary work concept in 70E is 'de-energize' it.
However there are some industries where live work is a necessary part of normal activities, like refineries and utilities. Over the years many of these industries, in conjunction with groups like OSHA and insurance companies, performed risk analyses and created specific work practices and qualified employee training.
So, those of you that want to make live residential service connections, develop your own written company standards and practices. Just be ready to defend them in a court of law. 'Sir, could you explain why you willing choose not to follow NFPA70E?'