This article explains how temporary construction power boxes work, the key components involved, and how E-abel portable electrical enclosures combined with industrial connector systems enable efficient, safe, and scalable power distribution for construction projects. Any copyrighted material included in this UFC is identified at its point of use. 22 and updated reference to IEEE C57. Air Force Manual 32-1185, Electrical Worker Safety. TM. Installation distribution boxes as a mobile solution for exhibition stand construction as well as light and event technology. WIV DISTRIBUTION BOXES MAXIMUM FLEXIBILITY + MOBILITY. Often these cabinets are equipped with fuses, ground fault circuit breakers and wiring to safely supply power.