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POWER LINE ALARM TRANSMISSION SYSTEMS - PHASE 1 REPORT - POWER SYSTEM CHARACTERIZATION

NCJ Number
15605
Author(s)
D L HARDISON; K N DUVALL
Date Published
1973
Length
222 pages
Annotation
THIS POWER WIRING SYSTEM CHARACTERIZATION SAMPLE STUDY WAS CARRIED OUT ON TWO SINGLE UNIT FAMILY RESIDENCES, ONE MULTI-UNIT SINGLE FAMILY RESIDENCE AND ONE MULTI-STORY BUILDING.
Abstract
THIS STUDY CONCLUDED THAT STANDARD THREE-CONDUCTOR ROMEX CABLE HAS AN IMPEDANCE TRANSFORMING CAPABILITY DEPENDENT UPON THE CABLE LENGTH AND THE TERMINATION OF THE SAFETY GROUND CONNECTOR. SINCE ROMEX IS ONE OF THE MOST COMMON TYPES OF RESIDENTIAL WIRING, THIS IMPEDANCE TRANSFORMING PROPERTY MUST BE DEALT WITH IN ANY ANALYTICAL MODEL TO BE DEVELOPED FOR RESIDENTIAL WIRING SYSTEMS. RESEARCHERS ALSO FOUND THAT THE EFFECT OF THE UTILITY SYSTEM ON THE RESIDENTIAL WIRING SYSTEM IS DEFINITE AND DISTINCTIVE, THE PRESENCE OR ABSENCE OF LOADS ON THE WIRING SYSTEM HAS A DEFINITE EFFECT ON ITS IMPEDANCE, AND THE PRINCIPAL SOURCE OF NOISE IS THE UTILITY SYSTEM. THEY FOUND THAT THE IMPRESSED SIGNAL LEVEL OF A POWER LINE ALARM TRANSMISSION SYSTEM SHOULD BE ON THE ORDER OF AT LEAST SEVERAL VOLTS IN ORDER TO OVERCOME ANTICIPATED SIGNAL ATTENUATION AND NOISE. FOR THE FINAL REPORT, SEE NCJ-17089.

Grant Number(s)
72-NI-99-0027
J-IAA-035-2
F04701-72C-0073
Contract Number(s)
35623
Sponsoring Agency
US Dept of Justice
Address

Washington, DC 20531, United States

Aerospace Corporation
Address

2350 East El Segundo Boulevard, El Segundo, CA 90245, United States

Corporate Author
GTE Sylvania, Inc
Address

P.O. Box 188, Mountain View, CA 94042, United States

Sale Source
National Institute of Justice/
Address

Box 6000, Dept F, Rockville, MD 20849, United States

Publication Type
Report (Study/Research)
Language
English
Country
United States of America