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Guidelines for Installation, Maintenance and Inspection of Mine Telephone Systems.

Authors
Long-RG
Source
NTIS: PB/287-641 Available for Reference At Bureau Libraries :53 pages
Link
NIOSHTIC No.
10001400
Abstract
This report reviews installation, maintenance, and inspection of mine pager telephone installations. Certain commercial telephone test equipment was modified and a tone source and switching circuit were developed for use in the testing of mine pager phone systems. Descriptions are included of the modifications to a commercial test set and of a tone source-switching unit.
Publication Date
19750101
Document Type
CP; Final Contract Report;
Fiscal Year
1975
NTIS Accession No.
PB-287641
NTIS Price
A05
Identifying No.
OFR 116-78
NIOSH Division
PRC;
Source Name
NTIS: PB/287-641 Available for Reference At Bureau Libraries
Performing Organization
A. D. Little, Inc.
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