Buried bite-proof communication cable HYA23 is a cable for transmitting electrical information

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Buried bite-proof communication cable HYA23 is a cable for transmitting electrical information. Divided into local telephone cables, long-distance communication cables, local office cables connected between racks and racks or racks, telephone cords used as telephone equipment connecting lines, integrated communication cables, and shared antenna TV cables, RF cables and optical cables. For telephone communication lines, integrated wiring systems, cable television systems. This section mainly discusses commonly used local telephone cables in buildings. There are mainly two types of indoor common telephone cables: HYA-type comprehensive sheath plastic insulation local telephone cable and HPVV copper core full PVC distribution cable. Buried bite-proof communication cable HYA23 can be buried outdoors or piped. Indoors can be overhead or laid along walls. HPVV copper core full PVC distribution cable for indoor use can be piped or laid along the wall. The main nominal section specifications are: 0.4; 0.5; 0.6mm2. The number of pairs of HYA cables is: 10;20;30;50;100;200;400;600;900;1200;1800;2400. The number of pairs of HPVV cables is: 5;10;15;20;25;30;50;80;100;150;200;300.

Buried bite-proof communication cable HYA23 Application: It is applicable to the transmission system between the remote optical network unit and the user, and the subsystem for transmission between buildings in the building wiring system. The maximum transmission frequency is 30MHz and 100MHz respectively.

Construction and installation points Specific construction practices are described in the National Building Standard Design Atlas 94X101 Indoor Communication Line Installation and 94X102 Underground Communication Cable Laying.

Buried bite-proof communication cable HYA23 advantages introduction:

1. Generally buried in the soil or laid in the indoor, channel, tunnel, the insulation distance between the lines is small, without poles and towers, covering a small area, basically does not occupy space on the ground;

2. It is affected by the weather conditions and the surrounding environment, the transmission performance is stable, and the reliability is high;

3. Has more favorable conditions for the development of ultra-high pressure and large capacity, such as low temperature, superconducting power cables;

4. Larger distributed capacitance

5. The maintenance workload is small;

6. The possibility of electric shock is small.

Plastic Injection Mould

Plastic Injection Mold is an assembly of parts containing within it an impression into which plastic material is injected and cooled. It's the impression which gives the moulding its form. The impression may, therefore, be defined as that part of the mould which imparts shape to the moulding.

The impression is formed by two mould members:

  1. The cavity, which is the female portion of the mould, gives the moulding its external form.
  2. The core, which is the male portion of the mould, forms the internal shape of the moulding.

Cavity and core plates: This is illustrated for a simple container, the basic mould, in this case, consists of two plates. Into one plate is sunk the cavity which shapes the outside form of the moulding and is therefore known as the cavity plate.

Similarly, the core which projects from the core plate forms the inside shape of the moulding. When the mould is closed, the two plates come together forming a space between the cavity and core which is the impression.

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