Section 2 Transmission Media and Components Power Taps
9ARD000015-600 53
Table 46 lists the electrical specifications of the Internal Power Drop Conductor.
Table 47 lists the environmental specifications of the Internal Power Drop
Conductor.
Table 46. Electrical Specifications for Internal Power Drop Conductor
Electrical Characteristics Specification
Protection Circuit (optional) Hold, 8 amps for thick trunk, 3 amps for thin trunk.
1.5 sec minimum to 120 sec maximum trip time for 20 amps at
25° C (77° F).
Slo-Blo or Normal-Blo is allowed.
Schottky Diode (optional) 20 amp, 30 volt minimum continuous capability over environment.
Maximum Vf of 0.73 volts @ Tc = 125 C and 16 A minimum test
condition.
MBR3045 recommended.
Operating voltage 25 volt minimum
Contact Rating Trunk line: 8 amps minimum for thick trunk, 3 amps minimum for
thin trunk, over temperature for all contacts.
Drop line: The sum of the contact ratings for both V+ and V- must
be 16 amps minimum for thick drop and 6 amps minimum for thin
drop over temperature.
Table 47. Environmental Specifications for Internal Power Drop Conductor
Applicable Environmental
Characteristics
Specification
Water resistance (sealed) IP67 and NEMA 4, 6, 6P, 13 for sealed
applications.
Oil resistance (sealed) UL-1277, OIL RES II for sealed applications.