Description: Filling Gel、Color Coating Fiber、Cable Sub-unit、Strength Member、Ripcord、PE Tape、Jacket. Fiber: SM: G652D、G655、G657 Or other single-mode optical fibers. Strength Member: Aramid yarn or ot
Cable Dimension: The nominal cable dimension,or other customized dimension:
Delivery Length: 1.0km or 2.0km, or other customized length;
Other requirements: other customized special request.
The outer sheath is marked in 1 meter intervals as follows: According to Customer's Requirements
4 Fiber cable Characteristic
4.1 Fiber glass characteristic
The geometric, optical and mechanical properties of the fiber in the cable are shown in the following table.
Table 1 Fiber Parameters
4.2 Optical Fiber Cable Characteristic
4.2.1 Fiber cable Mechanical Test
See the table below the minimum allowed cable tensile force and flattening
Table 2 Fiber Cable Mechanical Test
The test method is IEC60794-1-2 method E1, the chuck diameter is about 30 times the cable diameter, the test length is larger than 50m, the tensile rate is 100mm/min, and the 5min is continued under the specified transient tensile force. Qualification criteria: under long-term allowable tensile force, the fiber has no obvious additional attenuation and strain less than 0.2%; strain is not greater than 0.6% under transient tension, no obvious residual additional attenuation, and no visible cracking of sheath.
The test method is IEC60794-1-2 E3, 1min is applied under flat pressure for a short time, and the number of flattening is at least 3 times (the flattening points are at least 500mm away from each point). Qualification criteria: there is no obvious additional attenuation in the optical fiber under the long squash, and the fiber does not break under the transient flattening, and the sheath does not see visible cracking。
The test method is IEC60794-1-2 method E4; the force is applied in the flat direction, the middle block is the cylinder with radius R12.5mm, the hammer weight is 1N, the hammer drop height is 1m, and the impact times are at least 3 times (the impact points are at least 500mm away from each point). Qualification criteria: the fiber is not broken, and the sheath does not see visible cracking.
184.108.40.206 Repeated Bending
The test method is the IEC60794-1-2 method E6; the axis diameter is 20 times the cable diameter; the load is 40N; the L value is 500mm; the bending times is 100 times. Qualification criteria: no apparent residual attenuation in optical fiber and no visible visible crack in the sheath。
The test method is IEC60794-1-2 method E7, the axial tension is 20N, the torsion length is 1m, the torsion angle is + 180 degrees (not less than 30 times per minute), and the number of twisting times is 10 times. Qualification criteria: fiber is not broken, and the sheath does not see visible cracking。
Test method for IEC60794-1-2 E11A method; mandrel diameter is 20 times the cable diameter; dense number is 6 cycles per round; 10 cycles. Qualification criteria: the fiber is not broken, and the sheath does not see visible cracking.
The test method is the method of E2B "mark wear" in the IEC60794-1- 2 method 2; the load is 10N; the cycle number is not less than 5 times. Qualification criteria: visually still recognizable coat signs.
4.2.2 Environmental performance of optical cable
220.127.116.11 High and low temperature cycle test
Test method for IEC60794-1-2 F1 method; the specimen length is sufficient to obtain the attenuation measurement accuracy required (usually less than 2km); the temperature range of the test temperature range lower limit and upper limit of TA TB, and in accordance with the relevant standards and customer requirements, high temperature of 70 degrees, low temperature is -40 DEG C; the holding time is not less than 8h 2 cycles; attenuation; monitoring is second according to the monitoring method of IEC60793-1-4 "attenuation changes in optical fiber transmission part: backscatter monitoring law" provisions. During the test, the uncertainty of monitoring results caused by the repeatability of the monitoring instrument is better than that of 0.02dB/km. When the absolute value of the attenuation change of the fiber is not more than 0.02dB/km, there is no obvious change in attenuation. When the attenuation is allowed to change, it should be understood that the value is included in the uncertainty. The attenuation change monitoring of single mode fiber should be carried out at 1550nm wavelength, and the attenuation change monitoring of multimode fiber should be carried out at 850nm and / or 1300nm wavelengths. Qualification criteria: optical fiber cable temperature additional attenuation is the difference of fiber attenuation at suitable temperature relative to 20 degree temperature, for single mode is not greater than 0.40dB/km, and for multimode is not greater than 0.60dB/km.
18.104.22.168 Flame retardancy
22.214.171.124.1 Flame retardancy
126.96.36.199.2 Smoke density
The smog released by the optical fiber cable should make the transmittance less than 50%。
The pH value of the gas produced by the optical fiber cable is not less than 4.3, and the conductivity is not more than 10 mu S/mm。
188.8.131.52.4 Bending at low temperature
The fiber cable of class a temperature characteristic is capable of winding at -15 C at low temperature. The cable does not crack in the test.
184.108.40.206 Structural integrity and sheath integrity of optical fiber cable
Visual inspection of the integrity and sheath integrity of the cable structure at least 100mm from the cable end.
4.2.3 Physical properties of cable sheath
220.127.116.11 Basic characteristics
The mechanical and physical characteristics of the inner sheath shall be in accordance with the provisions of the table below.
Table 3 Mechanical And Physical Characteristics
The mechanical and physical characteristics of the outer sheath should be in accordance with the provisions of the table below。
Table 4 Mechanical And Physical Characteristics
The sheath material of hydrogen halide gas content is less than 5mg/g.
4.2.4 Other properties of optical fiber cable
18.104.22.168 Service life of optical fiber cable
Fiber-optic cable life is more than 15 years.
22.214.171.124 Optical cable outer diameter and sheath thickness
6 core Module and 12 core Module tube, two specifications Module optical cable size parameters see the next table.
Table 5 Module Optical Cable Size