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

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