Electrical wiring commercial mindtap course list 17th edition by phil simmons author ray c mullin author 47 out of 5 stars 17 ratings see all formats and editions hide other formats and editions price new from used from etextbook please retry 7749 paperback illustrated please retry 12995 12912 12271 etextbook 7749 read with our free app paperback 12995 . Electrical wiring commercial 14e has been extensively revised for the 2011 national electrical code full color drawings and product photographs illustrate difficult concepts of the code to. Heavier electrical loads mean commercial properties usually require a larger volume of electrical wire than individual homes in addition commercial wiring often requires extra protection to withstand high levels of heat and sometimes from exposure to chemicals use of electrical conduit. commercial electrical wiring normally uses a three phase design in three phase electrical systems there are two smaller legs running 120 volts each and i wider leg running 208 volts this setup allows each wire less workload while creating a higher output when they work together this leads to greater efficiency and longer lasting equipment
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