Composite material cross-arm refers to a new cross-arm product with high mechanical load-bearing capacity and insulation properties that is mixed with reinforcing fibers, polymer resin and additives in a certain proportion, formed by pultrusion or other processes, and filled with insulating foam internally. Composite crossarmss need to be drilled at appropriate locations and connected and fastened to towers, insulators or other equipment through hardware. The Single Loop Composite Insulation Crossarms is arranged in a zigzag shape or a triangle, and is a three-phase single-circuit arrangement.
The complete set of design solutions for Single Loop Composite Insulation Crossarms in ordinary weather areas includes the crossarms body (one upper crossarms and one horizontal crossarms), crossarms hoop plates, and U-shaped hoops.
The insulating crossarms body is fixed on the pole through the crossarms hoop plate and U-shaped hoop, and the upper crossarms needs to have a preset upward inclination angle.
The Single Loop Composite Insulation Crossarms is convenient to construct and install. The wires or wire support structures are directly connected to the accessories at both ends of the composite insulated crossarms, which can save the installation work of line post insulators and insulators.
At the same time, the accessory hardware is designed with pulley mounting holes to facilitate the installation and fixation of the pulley during the pay-off process.
When overhead insulated distribution lines encounter important crossings, the Single Loop Composite Insulation Crossarms can adopt a double crossarms structure. When crossing highways, rivers and other important buildings, a double crossarms structure can be used to enhance mechanical stability.
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≥600mm |
Lightning Impulse Withstand Voltage |
≥350kV |
Ratio of End Deflection to Length of Arm Product |
≤1%(0.75kNUnder Normal Bending Load) |