The requirements for PV equipment isolating devices or equipment disconnecting means are found in Sec.690.15(D) of the 2023 NEC. These materials are provided by Mike Holt Enterprises in Leesburg, Fla.

It is a common practice to lockout and/or tagout control devices. In a nuclear power plant’s control room with its many analog controls, you might (for example) see red covers over specific switches.

To ensure compliance under 1910.147, hazardous energy sources, such as electrical, pneumatic, hydraulic, chemical and thermal energy, need to be properly isolated to a zero-energy state through a ...

The worldwide proliferation of electric and hybrid electric vehicles (EVs and HEVs), which must withstand higher operating voltages and currents than gasoline-powered vehicles, has underscored the ...

The proliferation of high-voltage systems, propelled by the growing demands for electric vehicles, photovoltaic (PV) systems, and industrial control devices. The need for more advanced isolators to ...

High-voltage isolation plays a much more critical role in modern power systems. The primary goal of galvanic isolation is to prevent unwanted DC or any sudden AC current from entering different ...