Solved 13 Match Up The Nec Section With The Requirement By Chegg Com
6 Analysis of Changes, NEC17 215 408 Switchboards, Switchgear, and Panelboards 218 409 Industrial Control Panels 2 410 Luminaires, Lampholders, and Lamps 223 411 Lighting Systems Operating at 30 Volts or Less and Lighting Equipment Connected to Class2 Power Sources 226 422 Appliances 240 424 Fixed Electric SpaceHeating Equipment 250 425 Fixed Resistance andThe width of the working space shall be the width of the equipment enclosure or not less than 30 inches (762 mm), whichever is greater Enclosure doors and hinged panels shall be capable of opening not less than 90 degrees The space in front of the enclosure shall comply with the depth requirements of Table (A)(1) of NFPA 70
Nec 110.26 working space
Nec 110.26 working space-Considering that, there must still be amicable working space to work on equipment, including the replacement of components and the disassembly and removal of cover panels and doors as required by Code Violation NEC (A) 3 Height of Working Space Has to be 65 feet minimum or at least as high as the equipment "The work space shall be clear and extend from the grade, floor, or platform to a height of m (61/2 ft) or the height of the equipment" NATIONAL ELECTRICAL CODE, 14 Edition
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Question Is working clearance in accordance with NEC Section (A) required for dry type transformers?Answer No The National Electrical Code Section (A) Working Space states in part, "Working space for equipment operating at 600 volts, nominal, or less to ground and likely to require examination, adjustment, servicing, or (A) (2) says " in all cases, the work shall permit at least a 90 degree opening of the equipment doors or hinged panels" If front door was open, panel door could not open My interpretation of NEC is panel behind doorswing is a code violation
of the National Electrical Code (NEC) 1) at least a 3ft clearance in front of all electrical equipment;As outlined in NEC Table (A),these are Condition 1 When there are (i) exposed live parts on only one side of the working space, (ii) grounded live parts on the other side of the working space, or (iii) when both sides of the working space are sufficiently insulated Requires 3 8 ft depending on voltage from 1001V to above 75 kV The space in front of the equipment does not deviate from Table(A), but there are significant concessions found in (A)(4)(d) It states that (1) The maximum height of the working space is limited to whatever is necessary to install the equipment, and
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(A) Working Space Working space for equipment operating at 600 volts, nominal, or less to ground and likely to require examination, adjustment, servicing, or maintenance while energized shall comply with the dimensions of 1126(A)(1), (A)(2), and (A)(3) or as required or permitted elsewhere in this CodeThe purpose for the National Electrical Code is to provide a safe installation, but Article 110 is perhaps focused a little more on providing an installation that is safe for the installer and maintenance electrician, so time spent in
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