Utility companies rely on manholes, the street-based access vaults for electrical and other infrastructure, to make upgrades and repairs to the various underground systems that link buildings and neighborhoods.
Quite often we look at the requirements of the CE Code without any concerns, as clarity of the literal text (and of the intent behind this text) appears to be obvious. Rule 8-304 of the CE Code should be one such requirement.
Large-scale PV plants have become commonplace in the desert southwest with plants routinely exceeding 100 MW in size. How does that impact the local AHJ and why is Article 691 for large-scale PV electric supply stations even in the NEC?
Photovoltaic power systems are proliferating and are going to be a major player in our nation’s energy mix. The inspector community must be able and willing to inspect these systems as the last line of defense in ensuring the safety of the public.