- (a) Transformers shall be of the totally enclosed type, or shall be placed at least 8 feet above the ground, or installed in a transformer house, or surrounded by a substantial fence at least 6 feet high and at least 3 feet from any energized parts, casings, or wiring.
- (b) Transformer stations shall be enclosed to prevent persons from unintentionally or inadvertently contacting energized parts.
- (c) Transformer enclosures shall be kept locked against unauthorized entry.