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In India, cable jointing kits are widely used in various industries, including power distribution, telecommunications, railways, and construction. These kits are essential for joining or terminating cables reliably and safely. They typically include a range of components and accessories necessary for splicing, terminating, and insulating cables.
cable jointing kits available in India :
Heat Shrink Cable Jointing Kits : Heat shrink cable jointing kits are popular for low, medium, and high voltage cable jointing applications. They consist of heat shrinkable sleeves, stress control tubes, adhesive-lined heat shrink tubes, and other components. These kits use heat to shrink the insulating material around the cable joint, providing electrical insulation, mechanical protection, and environmental sealing.
Cold Shrink Cable Jointing Kits : Cold shrink cable jointing kits offer an alternative to heat shrink kits. They utilize pre-expanded rubber tubes that shrink onto the cable when the supporting core is removed. These kits are easy to install and do not require heat guns or special equipment, making them suitable for field installations and confined spaces.
Resin Cast Cable Jointing Kits : Resin cast cable jointing kits use epoxy or polyurethane resin to encapsulate cable joints, providing excellent electrical insulation and environmental protection. These kits include resin-filled moulds, cable preparation materials, and accessories for mixing and pouring the resin. Once cured, the resin forms a durable and water-resistant seal around the joint.
Cable Termination Kits : Cable termination kits are used for terminating cables at substations, switchgear, transformers, and other electrical equipment. They include components such as cable lugs, connectors, insulation boots, and sealing compounds. These kits ensure reliable electrical connections and prevent moisture ingress into the cable termination points.
Fibre Optic Cable Jointing Kits : With the increasing deployment of fiber optic networks, fibre optic cable jointing kits are in demand. These kits contain fusion splicers, cleavers, splice protection sleeves, and other tools required for splicing and terminating optical fibers. They enable efficient and low-loss connections in fiber optic communication systems.
High Voltage Cable Jointing Kits : High voltage cable jointing kits are designed for use in transmission and distribution networks operating at voltages ranging from 11 kV to 400 kV or higher. These kits comply with stringent electrical standards and safety regulations to ensure the integrity and reliability of high voltage cable joints.
Atlas engineering company in India manufacture and supply cable jointing kits, including 3M, Raychem RPG, Polycab, Dowells, and Brisk Cables, among others. Our companies offer a variety of kits tailored to different cable types, voltage ratings, and application requirements. Customers can choose from a range of standard kits or request custom solutions based on their specific needs and preferences.
In India, various materials are used for cable jointing across different industries and applications. These materials are selected based on factors such as the type of cables, voltage ratings, environmental conditions, and installation requirements.
some common cable jointing materials used in India :
Heat Shrink Tubing : Heat shrink tubing is a widely used material for insulating and sealing cable joints. It is made of cross-linked polyolefin or other polymers that shrink when heated, providing electrical insulation and mechanical protection. Heat shrink tubing is available in various sizes, colors, and shrink ratios to accommodate different cable sizes and joint configurations.
Cold Shrink Tubing : Cold shrink tubing offers similar benefits to heat shrink tubing but does not require heat for installation. Instead, it utilizes pre-expanded rubber tubes that shrink onto the cable when the supporting core is removed. Cold shrink tubing is easy to install and suitable for field applications where heat sources are not available or practical.
Resin : Epoxy or polyurethane resin is commonly used for encapsulating cable joints in resin cast jointing systems. Resin provides excellent electrical insulation, environmental protection, and mechanical stability. It is poured or injected into a mould surrounding the cable joint and cures to form a solid, waterproof seal. Resin jointing systems are preferred for high voltage and underground cable applications.
Cable Lugs and Connectors : Cable lugs and connectors are used to establish electrical connections between cables or between cables and electrical equipment. They are typically made of copper or aluminum and come in various designs such as crimped lugs, mechanical lugs, and soldered lugs. Cable lugs and connectors must be selected based on cable size, conductor material, and current-carrying capacity requirements.
Insulating Tapes and Mastics : Insulating tapes and mastics are used for wrapping and sealing cable joints to provide additional insulation and moisture protection. These materials are typically made of rubber, vinyl, or butyl rubber and are applied over cable connections to prevent water ingress and corrosion. Insulating tapes and mastics are flexible and conformable, making them suitable for irregular joint shapes and contours.
Cable Glands and Seals : Cable glands and seals are used to secure cables to electrical enclosures or equipment and provide ingress protection against dust, moisture, and other contaminants. They are typically made of metal, plastic, or rubber and come in various sizes and configurations to accommodate different cable types and entry points.
Splicing Kits : Splicing kits contain a range of components and accessories required for splicing cables, including splice connectors, heat shrink tubing, insulation tapes, and cable preparation tools. These kits streamline the cable jointing process and ensure reliable and durable connections.
Fibre Optic Splice Protection Sleeves : In fibre optic cable jointing, splice protection sleeves are used to protect and reinforce fusion splices between optical fibers. These sleeves are typically made of heat-shrinkable materials with a reinforcing member to provide mechanical strength and protect the delicate optical fibers.
These are some of the key cable jointing materials used in India across various industries and applications. The selection of materials depends on factors such as the type of cables, voltage ratings, environmental conditions, and installation requirements. It's essential to choose high-quality materials and follow industry best practices to ensure the integrity and reliability of cable joints.
Cable jointing kits and materials are essential for establishing reliable electrical connections between cables or repairing damaged cables in various industries and applications.
Here's how they are used :
Preparation : Before starting the jointing process, the cables to be joined or repaired are prepared by stripping off their insulation layers to expose the conductors. The ends of the cables may also be cleaned and trimmed to ensure proper contact and alignment during jointing.
Selection of Materials : Based on the type of cables, voltage ratings, environmental conditions, and installation requirements, the appropriate cable jointing materials are selected. These materials may include heat shrink tubing, resin, cable lugs, connectors, insulating tapes, and sealing compounds, among others.
Assembly : The cable jointing kit contains all the necessary components and accessories required for the jointing process. Depending on the type of joint (e.g., straight joint, branch joint, termination), the components are assembled according to the manufacturer's instructions and industry standards.
Insulation and Sealing : Once the cables are properly aligned and connected using cable lugs or connectors, insulating materials such as heat shrink tubing, resin, or insulating tapes are applied over the joint to provide electrical insulation and mechanical protection. Heat may be applied to shrink the tubing or cure the resin, ensuring a secure and durable seal.
Termination : In cable termination applications, where cables are connected to electrical equipment or terminals, cable termination kits are used. These kits include components such as cable lugs, connectors, insulation boots, and sealing compounds to ensure reliable electrical connections and prevent moisture ingress into the termination points.
Testing : After the jointing process is complete, the cable joint is typically tested to ensure its integrity and electrical continuity. This may involve conducting insulation resistance tests, high-voltage withstand tests, or continuity checks using specialized testing equipment.
Documentation : Proper documentation of the jointing process is essential for future reference and maintenance purposes. This may include recording details such as cable specifications, jointing materials used, installation date, and test results.
Safety Precautions : Throughout the jointing process, safety precautions must be observed to prevent accidents and ensure the safety of personnel and equipment. This includes using appropriate personal protective equipment (PPE), following safe work practices, and adhering to electrical safety regulations and standards.
Overall, cable jointing kits and materials play a critical role in establishing reliable electrical connections and maintaining the integrity of cable installations in various industries such as power distribution, telecommunications, railways, and construction. Proper selection, installation, and testing of jointing materials are essential to ensure the safety, efficiency, and longevity of cable joints.