Information on the most widely used ASTM standards within the materials testing industry
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.
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| Method E3A, details of plate/plate | Method 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
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 capacity | 5KN (0.4%--100%) |
| Multiple load cell in one machine function | YES |
| Load Accuracy | Class 0.5 according ISO7500-1 |
| Load cell overload capacity | 150% of rate capacity |
| Load measuring resolution | 1/500000 FS, stepless |
| Position / displacement resolution | 0.001mm |
| Crosshead travel | 1000mm |
| Tensile test space | 800mm |
| Compression test space | 900mm |
| Loading center to wall | 70mm |
| Standard tensile test fixture | Screw vice action grip (optional) |
| Compression platen diameter | Φ100mm |
| Testing speed range | Displacement control: 0.001 mm/min~500 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 |
| Weight | 130kg |
| Standard Power | 220/110V, 50/60HZ, 1 phase |
| Dimensions | 523×375× 1350mm |
| Analysis software | SmartTest English version |
| Working system | MS 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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