What are the characteristics of Rubber cable, and the difference from plastic sheathed cables?

Rubber sheathed cable is also one of our commonly used power cables. It mainly consists of multiple thin copper wires as conductors, and is a soft cable type that is wrapped with rubber insulation and rubber sheath. Rubber sheathed cables have a wide range of uses and are suitable for various electrical equipment, including household appliances, electric machinery, electrical equipment and portable power cords for appliances, and can be used indoors or outdoors.



 What are the characteristics of Rubber cable, and the difference from plastic sheathed cables?
一、 Types of Rubber cable
Rubber cables are widely used in various electrical equipment, such as mobile power cords for household appliances, motors, electrical equipment and appliances. At the same time, it can be used indoors or outdoors. According to the size of mechanical external force, rubber sheathed cables are divided into heavy rubber sheathed flexible cables, medium rubber sheathed flexible cables, light rubber sheathed flexible cables, waterproof rubber sheathed flexible cables, and electric welding machine cables. There are also appropriate connections in the cross-section. Generally, light rubber cables are used in household appliances and small electrical equipment, and require softness, lightness, and good bending performance.

二、The characteristics of the rubber cable:
1. Softness unmatched by other wires and cables;
2. Good electrical insulation performance, chemical stability;
3. Good physical and mechanical properties and wear resistance;
4. Oil resistance, flame retardant, cold resistance, heat resistance and other requirements.
三、The difference between rubber sheathed cables and plastic sheathed cables
1. The essential difference is that when plastic deforms, it deforms plastically, while rubber deforms elastically; in other words, plastic is not easy to return to its original shape after deformation, while rubber is much easier. Rubber cable are soft, flexible, and can be stretched and lengthened. It has high temperature resistance and will not harden in cold weather. At room temperature, plastic is solid and hard, so it cannot be stretched.
2. The insulating sheath of the plastic sheathed cable is cross-linked polyethylene, and the insulating sheath of the rubber sheathed cable is ethylene propylene rubber, which is reprocessed from natural rubber and styrene-butadiene rubber. In addition, there are chloroprene, cis-butylene and silica gel. The use environment requirements are different. In addition to PVC, there are polyethylene, polytetrafluoroethylene, and fluoroplastics.
3. At room temperature, the plastic casing is solid and hard, and cannot be stretched and deformed, while the rubber has low hardness and elasticity, can be stretched and stretched, and can return to its original shape after stopping stretching;
四、Matters needing attention for rubber sheathed cables
1. Equipment: Small pressure equipment with automatic temperature control, timing, and multi-standard tubular mold cavities.
2. Rubber: It is consistent with the steel wire of the repaired steel wire, the rubber content is higher than that of the repaired material, and the vulcanization system is slightly stronger.
3. The rubber sheathed cable equipment manufacturer will give you popular science about the operation method of the rubber sheathed cable:
(1) Set the temperature and time according to the vulcanization system of the rubber.
(2) Clean the repaired parts with rubber ink thinner, especially the joint parts should be fully treated.
(3) Cut the repair glue according to the size of the gap, be careful not to be too much or too little.
(4) Put the cut rubber material into the gap, and pay attention that the rubber material should not be higher than the circumferential surface of the wire.
(5) Wrapped with high temperature resistant PP tape. And put it into a tubular mold cavity slightly smaller than the diameter of the wire, lock the upper and lower molds, so that the filling position has a certain pressure. Note that the diameter of the cavity is slightly smaller than the wire diameter by 0.1 ~ 0.2mm..
(6) When the vulcanization time is over, take out the product. If a small amount of rubber spills, repair it with a sharp blade and sand it with thinner.
4. The manufacturer of rubber cable equipment will provide you with popular science verification methods:
Press an appropriate amount of air into the repaired wire and place it in water, and you can judge whether it is good or bad by seeing whether there is any air leakage.