Table 5.18-2 compares originally estimated direct burial signal and
control cable requirements and cable of this category actually installed:
TABLE 5.182,
Original
Site
Runit
Cable
Estimated
CABLE REQUIREMENTS
14/2 Cable
Installed
14/20 Cable
Estimated on
14/20 Cable
June 14, 1950*
Installed
8,900
230,000
6,000
7,000
The Aomon Group
10,500
450,000
8,000
9,000
Engebi
15,000
632,000
6,000
7,000
Muzin
-
18,000
-
-
-
4,000
-
-
~
-
Piiraai
Bokonaarappu
Teiteiripucchi
Kirinian
Bogallua
Bogombogo
3 ,700*
-
*This estimate included 3,700 feet for Bogallua to Bogombogo
which was later cancelled. The cable was received and used
on the E+ operation, although this site had not been considered in the original estimate.
Direct Burial Control and Signal Cable Tests,
Control and signal
cables were tested for continuity before laying and after installation
for wire-to-wire resistance of each pair, each pair to ground and loop.
Cables were two-conductor No. 14 copper wire with thermoplastic insulation and were buried directly in the ground. Although this type of cable
is not normally installed in this manner, it was decided that, because of
the short duration of service requirements, it would be satisfactory.
The operations verified this decision.
The wire-to-wire readings ranged from a low of 100,000 ohms to a
high of infinity. The average value lay between 50 and 100 megohms,.
The pair-to-ground readings ranged from a low of 500,000 ohms to a high
of 1,000 megcohms. The average value was about 40 megohms. The loop test
readings ranged from a low of 0.76 ohms to a high of 43 ohms. A large
number of these readings were in the 10 to 20 ohm range. Data showing
the range of these tests are presented as an exhibit at the end of this
volume, and it can be said that, except for the few open or grounded
lines indicated, all lines were classed as in good operating condition,
Installation Procedure.
The 14/2 control and signal cables were,
in general, installed from Station 69 to various stations on each site,
9-253