What are the main components of a typical 11 kV overhead line?

2025-08-13

An 11 kV overhead line is a vital part of the electrical distribution network, carrying power from substations to local transformers. Its construction involves several key components working together to ensure a safe and reliable system. These components include:

  • Line Supports: These are typically wooden, concrete, or steel poles that provide the physical structure to hold the conductors at a safe height.

  • Conductors: The wires themselves, most commonly made of All Aluminum Alloy Conductor (AAAC) or All Aluminum Conductor Steel Reinforced (ACSR), which are chosen for their strength and electrical properties.

  • Insulators: These are essential for preventing the electrical current from leaking to the ground through the support poles. For 11 kV lines, pin-type or disc-type insulators are frequently used.

  • Line Hardware and Accessories: A wide range of fittings, such as cross-arms, clamps, and tensioning devices, are required to secure the conductors to the insulators and to the poles.

Ningbo Changshi provides a wide array of tools and accessories that are indispensable for installing and maintaining each of these components.

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