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Optical Fiber Cable Tensile Testing Machine - Outdoor Cable

IEC-60794-1 Method E1, EN 187000 method 501, EIA/TIA-455 no. 33

Application

Torontech's TT-OFCT-OD Optical Fiber Cable Tensile Testing Machine is designed in accordance to IEC-60794-1 Method E1 for tensile testing of outdoor Optical Fiber Cables, this measuring method applies to optical fiber cables which are tested at a particular tensile strength in order to examine the behavior of the attenuation and/or the fiber elongation strain as a function of the load on a cable which may occur during installation. This method is intended to be non-destructive (the tension applied shall be within the operational values).

The cable length under test is 150 meters, Additional cable length is needed to connect the fibers to be tester. The apparatus consists of an attenuation measuring apparatus, typically an OTDR supplied by customer. A fiber elongation strain measuring apparatus based on dispersion testing equipment. A specially designed tensile test machine capable of tensioning 150 meters of optical cable in six legs of 25 meters each. The machine is equipped with a motor for controlled tensioning and a load cell for measuring the actual tension applied on the cable.

Cable is wound in the machine over appropriately sized sheaves. The cable ends extend to reach the measuring instruments. A pre-determined number of fibers within the cable are concatenated by fusion splicing. Typically, two sets of fibers are used, one will serve to measure attenuation change and the other serves for elongation monitoring.

After all initial measurements and calibration are carried out, the cable is pulled at a specified rate until a pre-attenuation and fiber length are measured.

This process may involve several tensile levels in order to characterize the entire tensile behaviour of the cable, or be carried out only at the defined maximum allowed tension level.

Successful quality is tested when fiber cable is under load the fiber attenuation is not increased more than a predetermined value, typically 0.05dB over fiber length measured, and fiber cable is elongated more than a pre-determined value over its initial length. The allowed elongation under installation load is typically 0.25%

Model

TT-OFCT-OD

Load capacity

100KN  (other loads are available upon request)

Accuracy class

±0.5%  - ISO 7500-1

Crosshead travel

80 – 1100 mm

Loading speed

0.2 – 300 mm/min

Accuracy

Load measurement accuracy

±0.5% of reading to 1/100 of load weighing system capacity meets or exceeds the ISO 7500-1

Strain measurement accuracy:

 

±0.5% of reading to 1/50 of full scale with most ASTM E83 class B or ISO 9513 class 0.5 extensometers meets or exceeds ASTM E83, ISO 9513, and EN 10002-4.

Speed accuracy:

 

Set speed <0.05% Max. speed: ±1% Set speed ≥0.05% Max. speed:±0.5%

Position measurement accuracy:

±0.01% of reading or 0.0001 mm, whichever is greater

Deformation measuring accuracy

±0.5%

Displacement measuring accuracy

±0.5%

Optional  LVDT type extensometer

1. Gauge length 1000mm

2. Measuring resolution is better than 10μm

3. Accuracy is better than ±0.5%.

Power supply

 

Please specify voltage and frequency before placing the order.

Power must be free of spikes and surges exceeding 10% of the nominal voltage)

Operating temperature

0 to +38°C (+32 to +100°F)

Humidity range

10% to 90% non-condensing

Storage temperature

-40 to +66°C (-40 to +150°F)

Operational space (WxDxH)

(Flexible) x 2000 x 1100

Dimension/ Weight

Machine

Shipping Package

 

Dimensions (LxWxH) mm

Net Weight Kg

Dimensions (LxWxH) mm

Gross Weight Kg

Load frame

2700 x 1200 x 680

1200

2450 x 1060 x 960

1300

Moveable pulley

2010 x 420 x 1100

200

2180 x 710 x 1330

250

Fixed pulley

1100 x 800 x 1100

500

1200 x 960 x 1330

550

Other Parts

2000 x 1000 x 1100

200

2100 x 960 x 1300

250

PC + Table

800 x 800 x 900

50

900 x 1100 x 1300

70

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