This standard specifies the classification, technical requirements, test methods, quality assessment rules and marking, packaging, transportation and storage of solid polyethylene insulated radio frequency cables. This standard applies to solid polyethylene insulated radio frequency cables used in radio communications and electronic devices using similar technologies. GB/T 14864-1993 Solid Polyethylene Insulated Radio Frequency Cables GB/T14864-1993 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Radiofrequencycables with
solid polyethylene dielectric1 Subject content and scope of application
GB/T14864-93
This standard specifies the product classification, technical requirements, test methods, quality assessment rules and marking, packaging, transportation and storage of solid polyethylene dielectric radio frequency cables.
This standard applies to solid polyethylene dielectric radio frequency cables used in radio communications and electronic devices using similar technologies. This standard should be used together with GB12269 "General Specification for Radio Frequency Cables". 2 Reference standards
GB2828
Batch inspection counting sampling procedure and sampling table (applicable to inspection of continuous batches) GB2951.2 Measurement method for insulation thickness of wire and cable GB2951.3 Measurement method for sheath thickness of wire and cable GB2951.4 Measurement method for outer diameter of wire and cable GB8815
Soft polyvinyl chloride plastics for wire and cable
GB12269 General specification for radio frequency cables
HG2-1398
3 Product classification
3.1 Series and name
Low-density polyethylene resin
The series and name of the cable are shown in Table 1.
3.2 Structural diagram
Solid polyethylene insulated PVC sheathed RF coaxial cable Solid polyethylene insulated PVC sheathed RF symmetrical cable 11
Approved by the State Administration of Technical Supervision on December 30, 1993 5
Implemented on October 1, 1994
SYV-50-2-41
SYV-50-5-3
SYV-75-4-4
SYV-75-7-8
SYV-100-7-41
SYV-50-2-1
SYV-50-7-4
SYV-50-15-41
SYV-75-7-1
SYV-75-1541| |tt||SYV-50-2-7
SYV-50-3-5
SYV-50-17-3
SYV-50-7-3||tt ||SYV-75-7-3
SEYV-75-2
GB/T14864-93
SYV-50-3-3
S YV-50-17-1
SYV-75-5-4
SYV-75-9-41
SYV-50-3-1
SYV -50-9-41
SYV-50-17-41
SYV-75-7-2
SYV-75-17-41
SYV 5028
SYV-50-3-41
SYV-75-5-5
SYV-50-7-6
SYV-75-7-41
SYV-50- 3-4
SYV-50-17-2
SYV-75-5-41
SYV-75-17-1
SYV-50-7-1
SYV-50-1 2-1
SYV-75-3-41
SYV-75-12-2
SYV-50-5-4
SYV-75-5-42
SYV-50- 7-41
SEYV-100-2
SYV-50-5-1
SYV-75-4-3
SYV-75-7-4
SYV-75-17- 2
SYV-50-7-2
SYV-50-12-41
SYV-75-4-1
SYV-75-12-41
SYV-50-5 -41
SYV-75-17-4
SYV-75-4-2
SEYV-100-6-2
SEYV-150-7
Note: 1——Round copper single Inner conductor of the cable;
--Inner conductor of round copper stranded wire;
3--Inner conductor of copper-clad steel stranded wire;
4--Polyethylene insulation;
GB/T14864-93
SEYV-100-6-1
SEYV-200-7
5---Copper wire braided outer conductor (the inner braid of SYV-50-7-6 is silver-plated copper wire); 6--Polyvinyl chloride sheath;
7--Polyethylene filling.
3.3 Specifications
The specifications of the cable are shown in Table 4, Table 7 and Table 10 respectively. 3.4 Product marking
The product marking in the technical documents consists of the name, model and the number of this standard. Example: RF coaxial cable SYV-50-5-1 GB/T14864-934 Technical requirements and test methods
4.1 Structure
4.1.1 Inner conductor
The structure and materials of the inner conductor shall comply with the provisions of Table 4, Table 7 and Table 10, and the other requirements shall comply with the provisions of Article 5.2 of GB12269. The inner conductor shall be continuous.
The continuity of the inner conductor shall be checked by powering on the inner and outer conductor ends of the cable with an indicator light or other instrument not exceeding 36V.
4.1.2 Insulation
The insulation shall be tightly and concentrically extruded on the inner conductor. Its outer diameter and minimum thickness shall comply with the provisions of Table 4, Table 7 and Table 10. The polyethylene insulation material shall not be lower than the provisions of the cable material in HG2-1398, but the dielectric loss tangent (tgo) shall not be greater than 2.5×10-. The insulation thickness and insulation outer diameter shall be measured in accordance with the provisions of GB2951.2 and GB2951.4 respectively. 4.1.3 Outer conductor
The outer conductor is a braided type. The braiding angle, filling factor and material shall comply with the provisions of Table 4, Table 7 and Table 10. The other requirements shall comply with the provisions of Article 5.4 of GB12269. The filling factor shall be checked in accordance with the provisions of Article 3.3 of GB12269. 4.1.4 Sheath
The outer diameter and thickness of the sheath shall comply with the provisions of Table 4, Table 7 and Table 10, and the appearance shall comply with the provisions of Article 5.5 of GB12269. The sheath shall be made of materials that can make the product performance meet the requirements of this standard. The sheath material shall comply with the provisions of GB8815 (other materials that meet the performance requirements of cable products can also be used). GB/T14864-93
The sheath is generally black, and can also be other colors based on negotiation between the two parties. The thickness and outer diameter of the sheath shall be measured in accordance with the provisions of GB2951.3 and GB2951.4 respectively. 4.2 Electrical test
The electrical test shall comply with the provisions of Table 2.
Table 2 Electrical tests
Cable core dielectric strength
Insulation resistance
Sheath dielectric strength
Water immersion test
Spark test
Corona test
Characteristic impedance
Attenuation constant
GB12269
Standard clauses
4.3 Climate and mechanical durability test
Test conditions
40~60Hz, 1min
500V, DC
40~60Hz
40~60Hz
40~60Hz
30～200MHz
200MHz
The climate and mechanical durability test shall comply with the provisions of Table 3. 4.3.1 Technical requirements for bending test at low temperature after high temperature (applicable only to type sheathed cables)
See Table 5, Table 8, Table 11 of this standard
After the cable has been subjected to a test at 100_°℃ for 168h, it shall be cooled for 1h under the standard atmospheric conditions of the test, and immediately placed at -35℃ for 20h, and then subjected to bending test under the same temperature conditions. Its insulation and sheath shall have no visible mechanical damage. Table 3 Climate and mechanical durability test
Thermal stability
a. Pollution test after high temperature
b. Winding test after high temperature
c. Bending test at low temperature after high temperature
d. Bending test at low temperature
Flowability test
4.4 Delivery length
GB12269
Standard clauses
See 4.3.1 of this standard
Test conditions
100-,168h, attenuation measured at
3000MHz
100-℃, 168h
see 4.3.1 of this standard
-40±3C, 20h
The load added to each end of the sample is shown in Table 5, Table 8 and Table 11 of this standard
Technical requirements
see Table 5 and Table 8 of this standard
No mechanical damage to the dielectric and sheath
see Table 5, Table 8 and Table 11 of this standard
The delivery length of the cable shall comply with the provisions of Table 4, Table 7 and Table 10. According to the agreement between the two parties, any length is allowed to be delivered, but the length of the short line segment shall not exceed 10% of the total length of delivery.
The length measurement error shall not exceed ±10%.
4.5 Engineering use data (not required by the specification) The engineering use data of the cable is shown in Table 6, Table 9 and Table 12. GB/T14864-93
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