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Can a 150KVA transformer be mounted on a mezzanine with a metal grate floor with no additional requirements. ?

Question asked by tbeauchemin.designer on Apr 13, 2017
Latest reply on Apr 22, 2017 by jhren1

The question was asked whether or not a transformer needs a room. We determined that it does not due to having the 220 degree insulation and the 12' vertical and 6' horizontal clearances.. However questions are arising if additional requirements are needed if this transformer is iinstalled on a mezzanine on a metal grated floor. Also is the clearance requirements on vertical above and below the transformer.