Lirr signalman rules - Study guides, Class notes & Summaries

LIRR Signalman RulesWhat is the Ground Rule? - correct answer Each circuit, the functioning of which affects safety of train operation, shall be kept free of any grounds or combination of grounds which will permit in excess of 75% of the release value of any relay or other electromagnetic device in the circuit except the common return wires of circuits using grounded common and AC power circuits which are grounded for the purpose of safety. When the Block Operator in the tower blows the tower...

LIRR Signalman RulesWhat is the Ground Rule? - correct answer Each circuit, the functioning of which affects safety of train operation, shall be kept free of any grounds or combination of grounds which will permit in excess of 75% of the release value of any relay or other electromagnetic device in the circuit except the common return wires of circuits using grounded common and AC power circuits which are grounded for the purpose of safety. When the Block Operator in the tower blows the tower...