Perhaps nowhere in the Code is this mystery more prevalent than at 680.26 dealing with equipotential bonding for swimming pools and similar installations.
The Code is a comprehensive document. Sometimes it can seem quite daunting to quickly find the information you need. This series of articles provides a guide to help users find their way through this critical document.
The subject of jurisdictional demarcation between electrical design of installations required to be performed in accordance with the CE Code, Part I and work by power supply authorities (by electric utilities) is a very big (and very touchy) issue.
This article will continue our review of the significant changes in the 2017 NEC that relate to photovoltaic (PV) power systems.
We are contractors. When something is broke, we fix it. It is what we do — and we can fix this with the right amount of effort. I am in. How about you?
This article will focus on the inspection of DC combiners, tracker controllers and other unique and challenging situations utilizing the NEC, UL Standards, and the Building Code.
The lockout operations or safety procedures are precisely and clearly defined operations, the aim of which is always to ensure that situations are, and remain, safe.
The following is a real-life example of a church supplied from a 208Y/120 VAC, 300 KVA, 3-phase pad mount utility transformer.
With most of the United States now on the 2014 or 2017 National Electrical Code (NEC) several topics and enforcement questions are routinely being discussed. This article will address some of the most relevant issues facing enforcement and installers concerning PV systems.