Post insulator​ structural features

Post insulator structural features:

A. The product is divided into piercing and non-piercing (stripping insulation) two, which mainly by the insulating shield, the folder of aluminum alloy fittings, composite insulators, arc stick and the next foot and other components.

B. arc stick and wire clip assembly connected into one, when the lightning strike occurs, the arc between the rod and the foot caused flashover discharge discharge, the formation of short-circuit channel, followed by the power frequency arc moves to the starting rod and foot Burning to protect the wire from burns. Due to the arc stick to bypass the umbrella skirt and adjusted to the best discharge gap, discharge better and prevent burnout insulator shed.

C.FEG-12/5 type has a piercing-type razor structure, the prongs removable, peeled or not peeled use to choose from. Spiked teeth with higher electrical properties than aluminum, better electrical properties of copper alloy, the surface after the electric (osmosis) plating to prevent the combination of copper and aluminum

In high-voltage power transmission systems, substations at both ends of the line and along the way are undoubtedly the most important of these devices. In order to achieve insulation on the ground, the entire power station should be lifted to the dozens of meters high by the pillar post porcelain insulators. With the increase of voltage level and transmission energy, the power plant's weight rises linearly. In Changji-Kuquan ± 1100 kV project, the weight of one of the transformers alone is as high as 800 tons, and the entire power station Is like a unique shape of the "sky castle." In order to safely and reliably lifted this huge "sky castle", UHV rod-shaped pillar insulators naturally become the key material to determine the success of the system.

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