GB/T 13029.2-1991 Selection and laying of marine coaxial flexible cables GB/T13029.2-1991 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Cholce and installation of
shipboard flexible coaxial cablesCB/T 13029.2—91
This standard adopts the international standard TEC92—373 (1977) "communication cables, radio frequency cables, shipboard flexible coaxial cables". 1 Subject content and scope of application
This standard specifies the selection requirements, recommended model description and laying requirements of shipboard flexible coaxial cables. This standard is applicable to the connecting lines between shipboard high-frequency signal equipment, radio and communication equipment, which transmit signals with a frequency greater than 10°Hz and are asymmetric to the ground.
2 Reference standards
GB2951.1 General test methods for mechanical and physical properties of wires and cables GB 2951, 2
GB 2951.3
GB 2951. 4
GB 2951. 5
GB 2951. 6
GB 3048.5
Measurement method for insulation sequence
Wires and cables
Wires and cables
Measurement method for sheath thickness
Measurement method for outer diameter of wires and cables
Wires and cables
Wires and cables
Wires and cables
GB 3048.8
Electric wire and cable
GB 3048.9
GB 4098.1
GB 4098.2
Sheying cable
Radio frequency cable
GB 4098. 3
Radio frequency cable
GB 4098.4
OB 4098.5
GB 1098.6
GB 1098.7
GB 4098.8
CB4098.10
GD 9334. 1
CB 9334. 2
GD 9334. 3
GB 9334. 4
RF cable
RF cable
RF cable
RF cablewww.bzxz.net
RF cable
RF cable
Insulation mechanical properties test method
Sheath mechanical properties test method
Insulation resistance test method·Galvanometer comparison methodInsulation resistance test method·Voltage-current methodAC voltage test method
Insulated wire core power frequency spark test method
Corona test method
Capacitance and capacitance unbalance measurement method
Characteristic impedance measurement method
Attenuation band number measurement method
Capacitance stability test method
Attenuation stability test method
High temperature test method
Low temperature test method
Flow test method
RF cable
Dimensional stability test method
Marine RF cable
Marine RF cable
Marine RF cable
General provisions
Rated impedance 60 Copper conductor solid polyethylene insulated coaxial radio frequency cable Rated impedance 50 Copper conductor solid polytetrafluoroethylene insulated coaxial radio frequency cable Rated impedance 752 Steel conductor solid polyethylene insulated coaxial radio frequency cable Approved by the State Administration of Technical Supervision on July 15, 1991 22
Implementation on April 1, 1992
W.bzsoso: comGB/T 13029. 2—91
GB9334.5 Marine RF cable with rated impedance 75mm copper conductor solid core ethylene insulated coaxial cable GB10250 Electromagnetic compatibility of marine electrical and electronic equipment GB/T13029.1 Selection and laying of cables for marine low-voltage power systems 3 Selection requirements
3.1 Cable selection Select the cable based on the main performance indicators such as characteristic impedance, attenuation, rated voltage value, etc. of the frequency used. 3.2 The inner conductor of the cable should have good electrical properties, good mechanical strength and flexibility. Copper or steel-clad inner conductors can be used. When the outer diameter of the cable insulation is 12mm or less, the inner conductor is composed of seven copper wires twisted together. When the outer diameter of the cable insulation is more than 12mm, the inner conductor is composed of a single copper wire. The outer conductor should have good flexibility, and a copper wire braided outer conductor can be used. 3.3 The rated operating temperature of the insulation material should be at least 10 degrees higher than the highest ambient temperature that may exist or be generated at the cable installation site. The selection of insulating materials and structures should ensure that the cable has the lowest possible loss and its mechanical strength is sufficient to keep the inner and outer conductors concentric.
When selecting different types of sheaths, the mechanical effects and climatic effects that each cable may be subjected to during installation and use should be carefully considered. The general requirements for selection refer to GB/T13029.1. 3.5
4 Recommended model description
4.1 Recommended model specifications and structures
The specifications and structures of marine coaxial flexible cables shall comply with the provisions of GB9334. The recommended model specifications and structures are shown in the table.
4.2 The test methods for electrical tests, mechanical tests and climatic tests shall comply with the provisions of CIB2951, GD3048 and GB4098. The test requirements are shown in Table 2.
4.3 Usage characteristics
Usage characteristics are shown in Table 3.
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GB/T 13029.2.:91
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2-21-09
1-2E-09
5 Laying requirements
GB/T 13029. 2-91
5.1 The cable should be laid in a position that can protect it from mechanical and thermal damage to the maximum extent. 5.2 The cable should be laid in a position that can prevent physical or electromagnetic interference to equipment, cables or other radio frequency transmission lines. When laying, sufficient slack should be ensured so that the cable will not be subjected to destructive tension and shear force when the bulkhead deforms and the expansion joint moves to the maximum extent. 5.31
The cable should meet the specified bending radius requirements when it is bent (see Table 3). 5.4 The cable tread should be laid as far away from the cable as possible in the horizontal and vertical directions. Wherever practicable, the feeder cables for different electronic equipment circuits should be installed in different cable troughs.
5.5 Cables close to hydraulic pipelines of hydraulic transmission installations should be equipped with drip-proof shields or other baffles to protect the cables from damage caused by pipeline stagnation.
5.6. The cable is installed on the pole, and the position (shielding) should be determined in the following priority order within the radar beam with an operating frequency of 200 to 400MHz.
The cable is installed inside the pole,
The cable is installed in the cable duct!
The cable is installed along the outside of the gun pole, on the back side of the gun with a frequency of 200 to 400MHz. 5.7 The cable laying should be reliably grounded, and the influence of electromagnetic interference should be avoided as much as possible, and should comply with the provisions of GB10250. 5.8 The cable laying should prevent the entry of water vapor and dirt, and consider preventing the invasion of rats or other harmful animals. 5.9 The cable should use a stuffing box when passing through the water deck or bulkhead. Bushings or linings should be used where the cable passes through non-watertight decks or bulkheads.
5.10 The general requirements of the cable installation refer to GB13029.1. Additional remarks:
This standard is proposed by China State Shipbuilding Corporation. This standard was drafted by the 704th Institute of the 7th Institute of China Shipbuilding Corporation. The main drafter of this standard is Liu Meirong.
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