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Optical Fiber Cable Compression Crush Testing Machine

Optical Fiber Cable Compression Crush Testing Machine

Model: UTOF35-CC, IEC 60794-1-21 Method E3: Crush Test

UTOF35-CC Optical Fiber Cable Compression Crush Testing Machine is suitable for testing the ability of optical cables to withstand flattening. By applying a flattening force, qualified optical cables are required to have no fiber breakage, the change in fiber attenuation does not exceed the value specified in the optical cable product standard, and the cable sheath does not crack. Compliant with IEC 60794-1-E3 Crush Test.

 

The purpose of this test is to determine the ability of an optical fibre cable to withstand crushing for long term and for short-term loads.

General introduction

UTOF35-CC Optical Fiber Cable Compression Crush Testing Machine is suitable for testing the ability of optical cables to withstand flattening. By applying a flattening force, qualified optical cables are required to have no fiber breakage, the change in fiber attenuation does not exceed the value specified in the optical cable product standard, and the cable sheath does not crack. Compliant with IEC 60794-1-E3 Crush Test.

 

The purpose of this test is to determine the ability of an optical fibre cable to withstand crushing for long term and for short-term loads.

Apparatus for crush test: Two kinds, 1), Plate/plate; 2), Mandrel/plate. 


Optical Fiber Cable Compression Crush Testing MachineOptical Fiber Cable Compression Crush Testing Machine
Method E3A, details of plate/plateMethod E3B, details of plate/mandrel


Test Procedure: 

The cable sample shall be mounted between the plates so that lateral movement is prevented, and the force shall be applied gradually without any abrupt change. If the force is applied in incremental steps, these shall not exceed a ratio of 1 ,5:1 .

The force shall be maintained stable at the specified test value at a specified time. This time is typically 1 min (short-term) or 1 0 min (long-term) if not specified in the detail specification. Attenuation measurement shall be performed before the force is released.


The detail specification shall include the following:

a) total force applied, F;

b) duration of application of the force;

c) number of tests;

d) spacing between test places;

e) configuration of mandrel, if used;

f) maximum allowable change in optical transmittance for short- and long-term load during

and after the test.

Key Features

  • Main features
  • Standard reference
  • Installation Requirements

This cable crush tester uses computer control, servo motor drive, precision ball screw transmission for loading, and precise load sensor signal measurement. It features smooth loading, accurate measurement, rapid control response, and various control methods, enabling convenient and accurate digital calibration of loads. It also has full-load protection and position protection features.


On this machine can add the Cut Through Resistance Test Jig:.  (meet the IEC 60794-1-21 Method E12: Cut Through Resistance Test). 

Cutting Jig: Angle of the two surfaces is 60o  and the radius of the edge isequal to 0.125 mm.

IEC 60794-1-21 Optical fibre cables - Part 1-21: Generic specification - Basic optical cable test procedures - Mechanical tests methods

IEC 60794-1-21 Method E3: Crush Test

EN 60794-1 Optical fibre cables - Part 1: Generic specification - Basic optical cable test procedures

GB/T 7424.21: Optical fibre cable generic specification - Part 21:Basic optical cable test procedures- Mechanical test methods


1) Power supply: Single-phase, AC 220V ±10%, 50–60Hz, 0.8kW.
2) Computer power supply: Single-phase, AC 220V ±10%, 50–60Hz, 0.5kW.
3) Install on a stable foundation, levelness ≤1/1000, with at least 1 meter of space around.
4) Ambient temperature: 25℃ ±10℃, humidity: ≤80% non-condensing.
5) Indoors, free from vibrations and corrosive substances.


Main technical specification

Load capacity5KN (0.4%--100%)
Multiple load cell in one machine functionYES
Load AccuracyClass 0.5 according ISO7500-1
Load cell overload capacity150% of rate capacity
Load measuring resolution1/500000 FS, stepless
Position / displacement resolution0.001mm
Crosshead travel1000mm
Tensile test space800mm
Compression test space900mm
Loading center to wall70mm
Standard tensile test fixtureScrew vice action grip (optional)
Compression platen diameterΦ100mm
Testing speed rangeDisplacement control: 0.001   mm/min500 mm/min, stepless, adjustable arbitrarily;Load control: 0.05%-20%FS5KN: 2.5N/S ~ 1000N/S; 0.0025KN/S~1KN/s500N: 0.25N/S~100N/S1000N: 0.5N/S~200N/S
Weight130kg
Standard Power220/110V, 50/60HZ, 1 phase
Dimensions523×375× 1350mm
Analysis softwareSmartTest English version
Working systemMS Win10 / Win11

Specifications:Load measurement accuracy: +/- 0.5% of applied   load from 2% to 100% capacity; extended range down to 1% capacity with accuracy of 1% of applied load

Position measurement accuracy: +/- 0.5% of reading;

Deformation measuring accuracy and measuring range: 2%~100%FS, ≤±0.5%

Speed accuracy: ±1%(0.001~10mm/min),±0.5%(10~500mm/min) 

Operating temperature range: 0 to 38 degrees C(32 to 100 degrees F)

Storage temperature   range:  -10 to 45 degrees C (14 to 115 degrees F)

Humidity range: 10% to 90% non-condensing, wet bulb method 

Power: standard optional voltages110/220VAC,   50-60 Hz; power must be free of spikes and surges exceeding 10% of the nominal voltage. 

Notes: 1. Load weighing system meets or exceeds the requirements of the following standards: ASTM E4, EN 10002-2, BS 1610, DIN   51221, ISO 7500-1. UNITEDTEST recommends that systems are verified at   installation in accordance with ASTM E4 and ISO 75001. 2. Strain measurement system meets or exceeds   the requirements of the following standards: ASTM E83, EN 10002-4, BS 3846   and ISO 9513. 3. These models conform to all relevant   European CE 

Notes: 2. Dual test space structure: Tensile test   at upside of crosshead, Compression and bending test at downside of crosshead.             

Tensile, Compression and bending test all done at downside of crosshead (the three type test fixture interchange for different test).


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