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

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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 -

Magnetic Field Conversions

This download provides a table of magnetic field conversion factors of microvolts-per meter, gauss, picotesla, microampere-per-meter, weber per-square meter, and gamma with values of either 0 db or 1 as a starting point.

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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