1、 Technical Requirements
2、 Zero buoyancy Cable It is mainly used for electrical connection between equipment and is required to work in underwater environment. According to the signal transmission requirements, the signal control wire can be composed of stranded single core, multi-core, and multiple pairs of different combinations of core wires; According to the use requirements, it can be in the form of longitudinal underwater robot cable and transverse sealing.
3、 Longitudinal underwater zero buoyancy cable: It is used to connect ships through warehouses, and it is a highly reliable service environment. It is required that the cable end face (axial) can withstand water pressure, and no water is allowed to seep out within the specified test pressure and time.
4、 Horizontal underwater zero buoyancy cable: underwater service environment for non warehouse crossing. The cable outer sheath (radial) is required to be resistant to water pressure, and the cable insulation resistance will not drop and the cable will not deform within the specified test pressure and time.
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1. The outer layer is protected by foaming polyurethane Protective sleeve with additional linear tensile material in the inner layer
2. Number of optical cable cores: 2 RV1.5 (0.19 multi strand) flexible cables (outer diameter 2.65MM) 2-core single-mode armored optical fiber (outer diameter 3MM)
2. Tensile capacity: ≥ 300kg-500KG.
6、 Technical parameters
1. Basic parameters of optical cable
1.1 Technical specification: GB/T3956
1.2 Material standard: GB/T3953
1.3 Number of cable cores: 2 RV1.5 (0.19 multi strand) flexible cables (outer diameter 2.65MM)
One 2-core single-mode armored optical fiber (outer diameter 3.3MM)
1.4 Optical fiber standard: G.657A2/G652. D
1.5 Optical fiber attenuation requirements:
Optical fiber attenuation 1310nm ≤ 0.35dB/km
1550nm≤0.21dB/km
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2. Buoyancy protection sleeve:
2.0 Inner sheath available TPE PU foaming
2.1 Material of outer protective sleeve: PU
2.2 Inner layer linear filling tensile material
2.3 Outer diameter: ≤ 13mm ± 0.2mm
2.4 Waterproofness: no water seepage in 500m water depth
2. Cable specific gravity: ≤ 1.0 water specific gravity
2.7 Corrosion resistance: alkali resistance ＞ PH9, acid resistance ＜ PH6
3. Warranty period: one year
4. Tensile resistance: ≥ 500kg
5. Bending resistance: the bending radius can be less than 6 times the outer diameter of the optical cable, which can ensure 1000 times of repeated retraction and retraction.
6. Cable withstand voltage: 450/750V
