§ 39.134. Transformers.
Transformers shall be installed according to any one of the following methods:
(1) On poles or, when permitted by local authority, on walls of buildings, in which case they shall comply with overhead line rules.
(2) In rooms in which other equipment is installed, in which case the construction, grounding, and guarding for live parts shall comply with the rules covering station construction or utilization equipment, as they may apply in each case.
(3) In transformer vaults or rooms which shall be made inaccessible to unauthorized persons.
(4) If the amount of oil in transformer casings is considerable and the transformers are located in buildings used for other than station purposes, they should be placed in suitable transformer vaults. Reference should also be made to § 39.201 (relating to storage batteries, transformers and lightning arresters).
Cross References This section cited in 34 Pa. Code § 39.201 (relating to storage batteries, transformers and lightning arresters).
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