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UL 98B for Enclosed and Dead-front Switches for use in Photovoltaic Systems Updated

solar panel photo

UL has announced the third issue of the Outline of Investigation for Enclosed and Dead-Front Switches for Use in Photovoltaic Systems. The outline can be purchased on the UL website.

Description*

- Partner Content -

A Dash of Maxwell’s: A Maxwell’s Equations Primer – Part Two

Maxwell’s Equations are eloquently simple yet excruciatingly complex. Their first statement by James Clerk Maxwell in 1864 heralded the beginning of the age of radio and, one could argue, the age of modern electronics.

These requirements cover open, enclosed and dead-front switches rated up to 1500 V dc, intended for use in dc photovoltaic (PV) systems and installed in accordance with Article 690 of the National Electrical Code, ANSI/NFPA-70. These switches are intended for ambient conditions between minus 20 to +50°C.

*Description from the UL website.

Photo by david.nikonvscanon

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