Cable accessories are auxiliary equipment used to connect, extend, branch and terminate cables. They play an important role in wire and cable lines. Cable accessories are usually composed of metal connectors and highly insulating materials . They have excellent electrical and mechanical properties and can provide functions such as cable protection, connection and fixation. According to different usage environments and needs, the types and forms of cable accessories vary. For example, common cable heads can be divided into cold shrink cable heads and heat shrink cable heads. Their manufacturing processes and materials are different, but they can effectively seal the connection points of the cable to prevent electric shock and moisture intrusion. In addition, cable accessories can also be divided into indoor and outdoor types according to their usage scenarios, and can be divided into straight-through and branch types according to their structure. In short, cable accessories are an indispensable part of the wire and cable line, and their quality and performance directly affect the safety and stability of the entire line.
Heat shrink cable accessory is a widely used wire and cable connector made of heat shrink material with excellent insulation and waterproof properties. Its main features include:
1. Strong shrinkability: Heat shrinkable cable accessories can shrink as needed to adapt to various cable sizes and installation requirements.
2. Good insulation: Heat shrinkable cable accessories are made of polymer materials, which have excellent insulation properties and can effectively prevent electric shock and leakage accidents.
3. Strong waterproofing: The heat-shrinkable cable accessories are made of multi-layer heat-shrinkable material, which has good waterproof performance and can effectively prevent the intrusion of moisture.
4. Strong corrosion resistance: The material of the heat shrinkable cable accessories has good corrosion resistance and can resist the erosion of various chemical substances, ensuring the service life of the cable accessories.
5. Easy installation: The installation of heat shrinkable cable accessories is very simple. Just insert the cable into the accessory and heat and shrink to complete the installation.
In short, heat shrinkable cable accessories are an efficient, safe, and reliable wire and cable connector that are widely used in various fields such as power, communications, and transportation.
Cold shrink cable accessories are a new type of wire splicing technology made of elastomer materials that are injection vulcanized in the factory. Its advantages include small size, easy and rapid operation, no need for special tools, wide application range and few product specifications. During installation, these prefabricated cable accessory components are placed over the treated cable ends or joints, and the internal supporting plastic spiral strips are pulled out and pressed against the cable insulation. Compared with traditional heat-shrinkable cable accessories, cold-shrinkable cable accessories shrink by elastic retraction force at room temperature and do not require the use of fire source heating.
Cold shrink cable accessories are mainly composed of metal parts and rubber parts. Metal parts include an inner core and an outer sheath, while rubber parts include an inner rubber lining layer and an outer protective rubber layer. The outer sheath is made of high-quality polyvinyl chloride, while the inner lining is made of imported butyl rubber, which makes the cold shrink cable accessories have excellent electrical and mechanical properties.
When using cold shrink cable accessories, you need to check whether the wiring is correct before installing. When installing, first open the cover to the appropriate position, insert the wire end and fix both ends firmly, then cover the wire end with the cover and fix it with screws. It should be noted that it is strictly prohibited to overload the use of cold shrink cable accessories, nor to expose them to high temperatures for a long time.
