To simplify and speed up testing when the line is faulty: One of the
lineman, who installed the line, should be familiar with the route and can
inspect the line and locate the trouble more rapidly than the other.
To localize trouble by testing wire is as follows:
a. The wireman will proceed to the first splice from the
terminal equipment and untape the splice (Chapter 11, FM 24-20).
b. Depress the line binding post on test telephone and insert bare wire
(paragraph 2-3c, TM 11-5805-201-12).
handset and when operator answers, determine what side is good.
d. Disconnect wire from test telephone and retape splice.
If wireman did not receive answer from distant end, he will proceed to
halfway along the wire section that has the fault (Chapter 11, FM 24-20).
a. Wireman will cut the wire or remove tape if a splice exists there
and connect wire to test telephone.
b. Test wire in both directions to locate which side contains the
c. When testing is complete in that area, disconnect wire from
telephone and repeat testing procedures until fault is narrowed down to the
section that you know contains the fault.
Retape or splice each opening made in the wire line.
Learning Event 2:
SPLICE WIRE LINE.
Splicing is used to join the conductors if field wire line is to
A splice should have the same tensile
strength, conductivity, abrasion and weather protection and insulation
A bad splice causes
transmission loss, noise, and impairs the circuit quality.