GYTA / GYTS Fiber Optic Cable

Test

Standard

Specified value

Acceptance criteria

Tension

IEC 794-1-E1

Short term (during installation): 1500N

Short term tension: Every fiber in the cable elongation rate should be less than 0.33%, after the tension deleted, no fiber attenuation change happens.

Long term (during operation): 600N

Long term tension: The optical fiber shall have no distinct additional attenuation and strain.

Crush

IEC 794-1-E3

Short term (during installation): 1000 N/100mm

Short term: Δα<0.2dB

Long term (during operation): 300 N/100mm

Long term: The optical fiber shall have no distinct additional attenuation and strain.

Impact

IEC 794-1-E4

500g, 1m

The optical fiber shall have no distinct additional attenuation and strain after test.

Repeated bending

IEC 794-1-E6

15kg

The optical fiber shall have no distinct additional attenuation and strain.

Torsion

IEC 794-1-E7

15kg, ±180°

The optical fiber shall have no distinct additional attenuation and strain.

Temperature cycling

IEC 794-1-F1

-40℃~+70℃, 2 cycles

Δα<0.2dB/km

Water penetration

IEC 794-1-F5

Sample 3m, water 1m, 24h

No water leakage

The tolerable bend radius of the cable

Dynamic (during installation):

20xCable OD

Static (during operation):

10xCable OD

Service Life Time

25 years

No

Item

Test standard

Method

Acceptance criteria

1

Tensile

IEC-60794-1-E1

-Fiber strain at maximum

test

Sample length:50 meters

Load: max. 0.33%

Time: 1minutes;

-Attenuation increase≤0.1dB

2

Crush

IEC-60794-1-E3

Load:1000N

-No splits or cracks in the

test

Time: 1 minutes

outer jacket;

Length: 100mm

-Attenuation increase<0.1dB, (After the test)

3

Impact

IEC-60794-1-E4

Impact energy: 450g

-No splits or cracks in the outer jacket

test

Height:1 meter

-Attenuation increase≤0.1dB(After the test)

Impact points: min.1

Number of impacts: 5

4

Repeated bending

IEC-60794-1-E6

R=20×cable outer diameter

- No splits or cracks in the outer jacket

1m cable length with 150N weight,30 cycles

-Attenuation increase ≤0.1dB(After the test)

5

Torsion

IEC-60794-1-E7

1m cable length with 150N weight

- No splits or cracks in the outer jacket

test

±180 degrees, 10 cycles

-Attenuation increase ≤0.1dB(After the test)

6

Bending

IEC-60794-1-E11

Diameter of mandrel: 20×D

- No splits or cracks in the outer jacket

test

Number of turns/helix:10

- No fiber break

Number of cycles: 5

7

Temperature cycling test

IEC-60794-1-F1

Temperature step: +20℃→-40℃→+60℃→-40℃→

-Attenuation variation for reference value(the attenuation to be measured before test at +20±3℃) ≤0.1dB/km,

+60℃→+20℃

Time per each step: 12 hrs

Number of cycles: 2 cycles

8

Water penetration test

IEC-60794-1-F5

Water height: 1m

-No water leakage at the end of the sample

Sample length:3m

Duration of test: 24hrs

9

Drip test

IEC-60794-1-E14

Five 0.3m samples suspended vertically in a climate chamber, raised temperature to +70℃

-No filling compound shall drip from tubes after 24 hr