C Type Clamps

A: JLC C-type clamps are primarily used for T-connections or jumper connections involving overhead insulated conductors, steel-reinforced aluminum conductors (ACSR), stranded aluminum conductors, stranded steel conductors, and copper conductors at non-load-bearing positions. JLC clamps are classified as non-load-bearing connection fittings; they are intended solely for conductor splicing and jumper applications and must not be used for load-bearing connections.

A: JLC clamps are manufactured from a high-strength, specialized aluminum alloy. Their structure consists of a C-shaped body and a hinged wedge.
Working Principle: When subjected to external force, the hinged wedge presses the conductor firmly against the inner surface of the clamp body. The C-shaped structure possesses inherent elasticity, allowing it to maintain a consistently durable and constant contact pressure between the clamp and the conductor—even as the conductor expands and contracts due to thermal fluctuations. This contact pressure remains constant regardless of changes in external environmental or load conditions, thereby satisfying the optimal requirements for electrical connections.

A: Model selection should follow these steps:
Identify Conductor Type: Clearly determine the specific types of both the main conductor and the branch conductor (e.g., LGJ steel-reinforced aluminum conductor, JKLYJ overhead insulated conductor, LJ stranded aluminum conductor, etc.).
Measure Conductor Specifications: Verify the cross-sectional area or diameter of the conductor.
Verify Clamp Markings: Carefully check whether the conductor type and size marked on the clamp itself correspond exactly to the actual specifications of the conductor being used.