Highway emergency telephone cables GHYAT HYAT HYAT53
Highway emergency telephone cable - I plant in 1999 the newly developed products, mainly for highway emergency telephone service. Simple structure, long distance transmission, and low prices?, Widely welcomed by the users.
Highway emergency telephone cable the scope of application: Suitable for highway emergency telephone communication system for transmitting audio signals and control signals.
Highway emergency telephone cable model code and meaning
GH highway telecommunication cables?? Omitted? Copper?
Y solid polyolefin insulation?
A aluminum bonding sheath?
T-filling
According to GB2952 and GB2952. 3 of the regulations??
High-speed highway emergency telephone cable specifications
Specification diameter mm 0.50.70.91.2
Four-line group number 3
Note: According to user requirements can design and manufacture of other specifications and more than four-line group.
Technical requirements of the highway emergency telephone cable
Conductor using the soft round copper wire, in line with the provisions of the TR.
Insulation an insulation should meet the required high density polyethylene.
2 insulated wire core insulation color recognition, color identification mark should be uniform and the following colors: Star twist: white, blue, red, green
Highway emergency telephone cable unit line group quad group of insulated cores arranged in white, blue, red, green clockwise. Tie logo cable ties, cable tie colors: red, green, white quads.
Highway emergency telephone cable filling material filling the cable should be uniform in the gap of the cable core and cable core package with the gap to fill the fill complex compliance.
The cable core package with the cable core package with sufficient insulation and mechanical strength of the tape overlap wrapped. To prevent conductor insulation plus screen and extrusion squeeze process, bonding, deformation and damage.
Aluminum and plastic composite sheathed cable core package band overlap longitudinally layer compliance on both sides of the aluminum-plastic composite with aluminum nominal thickness of 0.20mm.
Packet layer without external sheath of the cable outer longitudinal wrinkles steel-plastic composite with cable outer sheath 53 cable sheath shall comply with the provisions of the GB2952.1 & GB2952.24.
Highway emergency telephone cable to use features
A highway emergency telephone cable to allow long-term operating temperature: -30 ℃ ~ +60 ℃.
Highway emergency telephone cable installation installation temperature not lower than -5 ° C.
3 freeway emergency telephone cable bend radius:
Armored cable minimum bending radius shall be not less than 10 times the wire outside diameter.
Armored cable minimum bend radius should be not less than 15 times of cable outer tube

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