150-712-200-02
Overview
HRE-712 List 1 and List 2
July 26, 2000
3
HRE-712 List 2 Air-Filled Stub
The air-filled cable stub on the HRE-712 List 2, shown in
, is equivalent to an ALP FTS-PIC air-core
telephone cable.
provides a complete description of the cable stub.
This enclosure is intended for underground and duct applications. Standard color codes are used for pair
identification with color compounds chosen for electrical balance and permanency. An inner jacket protects the
core and provides improved mechanical and electrical characteristics. The outer jacket provides a protective
covering that withstands exposure to sunlight, atmospheric temperatures, ground chemicals, and stresses expected
in standard installations.
Figure 2.
HRE-712 List 2 Remote Air-Filled Enclosure
The HRE-712 List 2 unit, similar to the HRE-712 List 1, contains three metal valves: internal air-pressure cutoff
valve, Schrader air-stem valve, and pressure-relief valve. The air-pressure cutoff valve is used to shut off the inlet
air supply that is pumped from the main feeder cable through the 30-foot (9.144m) stub into the HRE-712
enclosure.
•
To shut off the inlet air supply, turn the air-pressure cutoff valve clockwise one full turn.
•
To turn on the inlet air supply, turn the air-pressure cutoff valve counterclockwise one full turn.
The air-filled cable complies with the requirements of ANSI/ICEA S-85-625-1994 and REA
PE-22.
Pressure-cutoff valve
Schrader
air stem valve
Ground lug
Baseplate-mounting
bracket
Cable stub
Order-wire access
Pressure-relief valve or
Optional breather vent
Bottom View
