| Emergency sound-powered telephone circuits.
Emergency sound-powered telephone head-sets and portable
wire are provided each repair party. Sound-powered
phones with long extensions on reels should be made up,
stowed in strategic locations, and kept in constant
readiness for use in emergencies. This precautionary
measure has proved to be of great value on many damaged
ships. On vessels of 200 feet or more in length, three
sound-powered telephone head sets and cable are provided
for ship control jury-rig communication between the
bridge, control engine room, and steering engine room.
The wires provided may be passed through watertight
doors and hatches without destroying watertight
integrity. It is recommended that the jury-rig
telephones and wires be stowed as directed by the damage
control officer and be made part of the electrician's
mates' repair gear. The jury-rig equipment can be
supplemented by equipment from the primary telephone
circuits in the event of an emergency. It is considered
bad practice to string the jury rig before a casualty
has occurred. In all probability the cause of the
casualty would carry away the jury rig as well as the
primary circuits. |
