Principles of Fire Protection

Principles of Fire Protection

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8.1) is one in which operators are required to check the receipt of alarms and to retransmit them over alarm circuits to fire ... 2 In addition to handling the alarm system, operators may handle telephone calls for fires as well as other telephone business. ... A schematic diagram of a Type A wired telegraph fire alarm system.

Title:Principles of Fire Protection
Author:Percy Bugbee
Publisher: - 1978


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