IEC 60794-1-2-E7 GNZ-1000 Series Optical Fiber Cable Torsion Testing Machine

Application
GNZ-1000 Series Optical Fiber Cable Torsion Testing Machine is intended to establish the ability of a fiber optic cable to withstand mechanical twisting.

The length of the specimen under torsion should be sufficient to permit the appropriate clamping and twisting, and long enough to sustain the applied torsion. A typical value for small cables 1m, whereas larger cable samples are usually defined in terms of the cable diameter. A common length is 125 times the cable diameter. Armored cables may require a longer cable sample or a smaller number of torsion cycles.

Standard

IEC 60794-1-2-E7

Technical Parameters

Torsion angle	±90°, ±180°, ±360° degree
Max. distance between grips	1000mm
Max. twisting cycles	1-9999 cycles
Frequency range	5 - 30 cycles/min
Bending radius (mm)	25, 50, 75, 100, 150, 500 (others upon request)
Mass of weights for applying tension	Weight structure 27.5kg, 3 pieces of 5kg weight increment, 1 piece of 2.5kg weight increment.
Dimensions (LWH)
Working frame	20105201300 mm
Control console	540410 1000 mm
Power	3-phase 4-wire, 50Hz, 1 kW.

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