Memorandum on municipal signaling systems [electronic resource]: including specifications for emergency electrical power equipment / prepared by Defense Communication Board.

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Title	Memorandum on municipal signaling systems [electronic resource]: including specifications for emergency electrical power equipment / prepared by Defense Communication Board.
Item Number	p0131
Creator (Corporate)	United States. Defense Communications Board. United States. Office of Civilian Defense.
Government Publisher	United States Office of Civilian Defense; U.S. Government Printing Office
Original Date	1941
Physical Description	24 p. ; 27 cm.
Series	Publication of the Office of Civilian Defense ; no. 12
Notes	Published September 1941...--cover.; The specifications enumerated below... are made a part of this specification. American Standards for Rotating Electrical Machinery. Electrical Safety Code for Electrical Installations and Wiring.--p. 5.; Title from cover.
Table of Contents	Municipal signaling systems -- Emergency electrical power equipment -- Specifications, type 1 -- Specifications, type 2 -- Specifications, type 3 -- Specifications, type 4 -- Specifications, type 5.
Summary	Municipal signaling systems constitute an important line of defense against accident, sabotage, or attack. Unfortunately, these services themselves are subject to sabotage. Damage to the communication system means that sabotage elsewhere becomes easier and is more likely to be effective... It is suggested, therefore, that municipalities undertake adequate surveys of their normal and emergency signaling systems, in order to ascertain where those services most need guarding or supplementing... The specifications are divided into five units because of the different circumstances and conditions under which emergency power is required. For electrical power to drive a system involving telegraph printers, a strict control of power frequencies is generally required. There are two specifications to meet these conditions, one covering gasoline (Type 2) and the other Diesel power (Type 4). If telegraph printers are not involved, a less strict power frequency is required with consequent saving in initial cost. Two specifications are provided in this category, one for gasoline (Type 1) and one for Diesel (Type 3). Type 5 is a power system readily transportable, suitable for use in providing flood lights or driving electric pumps or other portable electrical apparatus.--p. 1-4.
Topical Terms	World War, 1939-1945--United States. Civil defense warning systems--United States. Government communication systems--United States. Civil defense--Planning--United States. Civil defense--Equipment and supplies. Sabotage--Prevention--United States. Signals and signaling--Specifications. Emergency power supply--Specifications.
Gov Doc Classification	PR 32.4402:SI 2
Type	Text
Digital Format	.pdf
Digital Publication Date	Available in digital format: 2001-2002
Digitization Process	Scanned as 300 dpi .jpg; converted to Adobe .pdf
SMU File Name	p0131.pdf
Digital Collection	Historic Government Publications from World War II
Library	Government Information Resources
Publisher	Central University Libraries, Southern Methodist University
Rights	These files may be freely used. A high-quality version of these files may be obtained for a fee by contacting ncds@smu.edu.

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Memorandum on municipal signaling systems [electronic resource]: including specifications for emergency electrical power equipment / prepared by Defense Communication Board.

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