Colleagues:
Does anyone have experience, or electrical code opinions concerning bringing power up to equipment mounted on cell towers in North America? Is it done typically by: 1. Run of conduit or armored cable up the tower, directly to the equipment; 2. Conduit run up to a box, with a receptacle to accommodate a plug-and-cord arrangement near the top; 3. A loooooong pendant cable; or 4. Combination of the above? I am struggling to satisfy a client’s proposal of a long pendant cable, terminating in what amounts to a circular appliance-coupler receptacle, in Canada, with the same product also sold in the USA. I read in National Electrical Code 400.7 and 400.8 and Canadian Electrical Code, Part I Rule 4-010 that flexible cords may be used as pendants, but also that flexible cords cord shall not be used as a substitute for the fixed wiring of structures and shall not be permanently secured to any structural member. “On the ground,” we normally supply field-wiring terminal blocks and an appropriately sized conduit opening for the connection of conduit, a pluggable cord installed by an electrician, or in non-North American installations, a cable gland for a permanently-connected, non-detachable power supply cord, and we use IEC/EN/UL/CSA 60950-1 for certification of our products. Any insight to the above or from the Mexican code NOM-001-SEDE would be appreciated. Best Regards, Don Gies, N.C.E Senior Product Compliance Engineer Alcatel-Lucent Murray Hill, NJ 07974-0636 USA - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
