The heat-shrink splice sleeve Cellpack SMHA4 35–150 is a product specifically developed for connecting steel tape- and steel wire-armored plastic cables. It is suitable for cables with a nominal cross-section per conductor of 35 to 150 mm² and is designed for voltage levels up to U0/U (Um) 0.6/1 (1.2) kV. The sleeve is used in various applications, including indoor installations, outdoor facilities, direct burial, underwater environments, installation ducts, and conduit pipes. The design enables a secure and durable electrical connection, with the heat-shrink technology providing a mechanically stable and watertight seal.

Applications

The sleeve is designed for use in various environments, including outdoor areas exposed to weather, direct burial, and underwater installations. It is suitable for installations in conduit pipes and installation ducts, making it particularly suitable for industrial and infrastructure applications. Use in soil and water requires high mechanical strength and chemical resistance, which are ensured by the material selection and heat-shrink technology.

Features and Equipment in Detail

The heat-shrink splice sleeve consists of an outer sleeve and multiple inner sleeves, together forming a complete electrical and mechanical connection. The delivery includes an armor transfer kit, cleaning cloth, sanding strips, and an installation manual. The armor transfer kit enables the secure transfer of the cable’s steel armor into the sleeve, which is crucial for the mechanical stability of the connection. The cleaning cloths and sanding strips are used to prepare the cable surfaces to ensure optimal adhesion of the heat-shrink materials.

Technology Explained Simply

The heat-shrink technology is based on a thermoplastic material that shrinks when heated, creating a tight, dense connection with the cable. This ensures high mechanical strength and a durable seal against moisture and environmental influences. The sleeve is suitable for PVC-, PE-, and VPE-insulated cables, enabling broad applicability across various cable types. The heat-shrink connection is activated by controlled heating, with the installation manual detailing the exact steps and temperatures.

Compatibility and Accessories

The sleeve is specifically designed for steel tape- and steel wire-armored plastic cables and can be combined with crimp connectors on aluminum and copper cables. Compatibility with various insulating materials (PVC, PE, VPE) expands its range of applications. The armor transfer kit included in the delivery enables the secure integration of the cable armor into the sleeve, which is essential for the mechanical stability of the connection.

Installation and Mounting

Installation is carried out according to the instructions in the included installation manual. Preparing the cable surfaces with cleaning cloths and sanding strips is an important step to ensure optimal adhesion. The inner and outer sleeves are placed over the cables in sequence and activated by heating, causing them to shrink and form a tight connection. The exact temperature and duration of heating are specified in the installation manual.

Operational Advantages

The splice sleeve offers high mechanical strength and durable sealing, increasing the reliability of the electrical connection in various environments. The use of heat-shrink materials ensures a uniform and tight connection that remains stable even under stress from tension, pressure, or temperature fluctuations. The installation process is standardized and can be performed using the tools included in the delivery, reducing installation time and minimizing error rates.