The allowable bending radius during cable laying is:

1, no armored cable cable, should not be less than 6 times the diameter of the cable,

2, armored cable or copper foil shielding process of the cable, should not be less than 12 times the diameter of the cable

3. The flexible cable with shielded structure shall not be less than 6 times of the cable diameter. When the long-term allowable operating temperature of the conductor of the flame retardant rubber sheathed cable shall not exceed 90 ℃, the assessed service life of the cable shall not be less than 40 years. The finished cable must meet the requirements of Class A bunched burning test specified in GB/T18380.3.

4. Smoke density of finished cable: transmittance is not less than 70%.

5. Radiation resistance: 25 × 104Gy

6. Halogen-free: when non-metallic materials are burning, the acid value of the precipitated gas (indicated by PH value) should exceed 4.3; The resistivity shall not exceed 10 μS/mm.

7. Cable collection and pay-off rack manufacturers introduce bare wires and bare conductor products: The main features of these products are: pure conductor metal materials, no insulation and protective wire sheath, such as steel core aluminum stranded wire, copper aluminum medical bus bar, diesel locomotive wire, etc. The manufacturing process is usually pressure processing, such as smelting, die casting, drawing, stranded wire/tight stranded wire, etc. Commodities are generally used in suburbs, villages, customer main line tasks, high voltage switch cabinets, etc. Flame retardant rubber sheathed cable

8. Power engineering cables: commodities are generally used for weak current electromagnetic energy transmission in power generation, distribution, transmission, transformation and power lines. The applied current is large (tens of amperes to thousands of amperes) and the voltage is high (220V to 500kV or above). Flame retardant rubber sheathed cable

Communication cables and optical fiber lines: With the rapid development of the communications industry in the past two decades, commodities have also grown at a surprising rate. From the previous simple telephone cable to thousands of telephone cables, coaxial cables, optical cables, data information cables, and even the composition of communication cables. The cross-sectional size of such goods is generally small and well-proportioned, and the production and manufacturing precision is high. Flame retardant rubber sheathed cable

Cable collection and pay-off frame manufacturers introduce special cables (winding wires): mainly used in various motors, instrumentation equipment, etc.

Dry chemical cross-linked cable production line is generally manufactured by our communication cable, so how much do we know about such a production line? What are some of its application methods? Next, the cable receiving and paying-off frame manufacturer will give you a brief introduction.

When our own overview core is made into a cable, its pitch diameter ratio, the correct number of preparation lines and chromatographic analysis must be carried out according to the operation flow of the processing technology. If the filling cable for manufacturing crude oil paste is produced, the working pressure of the filling bag is generally controlled at 0.4Mpa, the temperature is controlled at 90 degrees, and the die diameter of the filling bag is appropriate. This link must be considered by everyone, if the wire core is not well operated, it is easy to burn and blister, and it is very troublesome to repair. After the production and manufacture of dry chemical cross-linked cable, we still need to carry out conductor connectivity test and withstand voltage test of insulated cable core. In that case, we can search and repair any problems in time.