Section 690-327 - 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.2008, July 7, P.L. 654, No. 55, §327, effective in 180 days [ 1/5/2009].