Section 1128. Connections to Trolley.--(a) All permanent connections to trolley or feeder circuits shall be made with suitable mechanical connectors. No connection, temporary or permanent, shall be wrapped or tied.
(b) Temporary connections for portable or face equipment may be made through fused trolley taps.
(c) Safety ground and negative connections for temporary or permanent installations shall be made directly to the track, a bond, or the system ground.