This standard covers alternate requirements for other acceptable types of cable insulations other then those already referenced in ATIS-0600017.2009@ DC Power Wire and Cable for Telecommunications Power Systems. This standard does not cover wiring within a bay@ cabinet@ relay-rack@ nor does it cover wires used for signaling@ sensing@ or alarming. Purpose This standard establishes a minimum requirement for additional single conductor copper DC power cable used to connect telecommunications DC power systems to telecommunications load equipment. It may also be used to interconnect elements of the DC power system.