NEC Table (A)(1) provides the minimum required work space depth for electrical equipment rated volts (to ground) that is likely to be examined or worked on while energized For quite some time, this table stopped at 600 volts and the work space depth for anything higher than that was determined from Table in Part III of Article 110Visit http//wwwMikeHoltcom/14code to explore Mike's complete range of 14 NEC training products For over 35 years Mike Holt Enterprises has specialized NEC article (A) ( 1) condition 3 states that exposed live parts on both sides of the working space require minimum clear distance of 4ft NEC does not explain the dead front panel working space requirements between panels
Level Measurement High Voltage Electrical Wiring
