Cable terminal box optical performance and electric performance is introduced

optical performance cable terminal box in the remaining fiber coiling fiber disc in the set, the cable terminal box installation operation after additional attenuation of optical fiber and optical fiber connectors should be yuan.

mechanical properties after the following test, the cable terminal box box body and box parts should be change, as a fiber optical inspection when necessary.

1。 Stretch: cable terminal box with a fiber optic cable should be able to bear is not less than the axial tensile force of 500 n, and Ren Yigen wiring between the tail fiber can withstand the axial tensile force of not less than 5 n.

2。 Crushed: each of the cable terminal box box body shall be able to withstand not less than 200 n vertical static pressure.

3。 Reverse: cable terminal box should be able to withstand torsional Angle

cable terminal box in the remaining fiber coiling in molten fiber disc, after the cable terminal box installation operating optical fiber and optical fiber connectors should be no additional damping.

electrical properties

1. Insulation resistance: optical cable joint box of metal components and fiber optic cable, fiber optic cable between metal strengthening core metal components, fiber optic cable, metal components and ground between the insulation resistance between should not be less than 2 * 104 m Ω [ The test voltage is 500 v ( DC) ] 。

2。 Voltage resistance strength: cable terminal box and between metal strengthening core fiber optic cable, optical cable between metal components, fiber optic cable, metal components and ground under the action of 15 kv dc 1 min, no breakdown, no flashover phenomenon.

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