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In industrial establishments only, when a 200-ampere rated busway is tapped from a 600-ampere rated busway, what is the maximum permitted length of the 200-ampere busway where overcurrent protection is not provided for the 200-ampere busway?

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The Journeyman Electrician exam covers: grounding and bonding, overcurrent protection, wiring methods and installation, boxes and fittings, services and equipment, motors, special occupancies, load calculations, lighting, appliances, box and raceway fill, hazardous locations, trade knowledge and electrical theory.
 


In industrial establishments only, when a 200-ampere rated busway is tapped from a 600-ampere rated busway, what is the maximum permitted length of the 200-ampere busway where overcurrent protection is not provided for the 200-ampere busway?





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