General Machine Products 70046 Strand Tensionmeter User Manual
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An intensive study by the National Electric Safety
Code Clearances Subcommittee has resulted in a
completely new "Uniform System of Clearances"
adopted in the 1990 and subsequent editions of the
NESC. This revision places renewed emphasis on
utilities' practices for engineering and stringing of
aerial cables to maintain proper cable clearances
under the various specified conditions. The ability
to accurately measure strand tensions in the field is
essential for compliance with the code.
The GMP Strand Tensionmeter, also called a B
Strand Dynamometer, is a precision instrument de-
signed to measure the tension of certain specific
zinc-coated guy wires and messenger cables per
ASTM A-475. The specific sizes and type(s) of
cable(s) with which this unit is compatible are
listed in the calibration chart which has been pre-
pared for this specific serial numbered tension-
meter and which bears that identical serial number.
General
3
Precautions
5
Calibration Chart
6
Temperature Compensation Charts
8
Dial
16
Using the Tensionmeter
16
Accessory Saddle
18
Re-calibration
19
Table of
contents
General