A. Transformers must be installed per the manufacturer’s instructions, and their ventilating openings are not permitted to be blocked [Sec. 110.3(B)]. The required clearances from the ventilation ...
Article 450, Part III provides the requirements for transformer vaults. The first requirement is that they be located where they can be ventilated to the outside without using flues or ducts, wherever ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results