Section 327. Connections to trolley.
(a) Permanent connections.--All permanent connections to trolley feeder circuits shall be made with suitable mechanical connectors. No temporary or permanent connection shall be wrapped or tied.
(b) Temporary connections.--Temporary connections for portable equipment may be made through fused trolley taps.
(c) Safety ground and negative connections.--Safety ground and negative connections for temporary or permanent installations shall be made at two separate points, at least six inches apart, and shall be made directly to the track, a bond or the system ground.