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Search results with tag "Direct current circuits"
Basic Electrical Safety - National Oceanic and Atmospheric ...
www.labtrain.noaa.govOSHA Office of Training and Education ELECTRICAL/elbasic1/1-95 7 Direct Current (dc) Circuits Introduction This section discusses the electrical relationships in direct-current circuits. Although alternating current is more commonly used in electrical work, direct current has its own unique applications and advantages.
ARTICLE 690 - Solar Photovoltaic (PV) Systems
allstarce.com1 NEC 2017 Code Changes Chapter 6 – Special Equipment ... resistant and moisture resistant in sizes 16 AWG and 18 AWG shall be permitted for module ... Photovoltaic System Direct Current Circuits on or in a Building. Where PV system dc circuits run inside a building, they shall be contained in metal raceways, Type MC metal-clad ...