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17/45–50 kV European-style surge arresters provide reliable overvoltage protection for electrical systems. The shielded design of these rear-mounted arresters, featuring an external semi-conductive layer, ensures the personal safety of installation and maintenance personnel as well as the safe operation of equipment. Moreover, their exceptional resistance to ultraviolet radiation, aging, water ingress, and moisture penetration guarantees dependable performance even in harsh environmental conditions. When paired with European-style front-end connectors, these rear-mounted arresters help ensure the secure and reliable operation of the power grid.
To meet the emergency power-supply requirements for outdoor field operations, an integrated node switch and a power-takeoff interface are installed in the PT unit cabinet of the outdoor ring main unit. When the power-takeoff interface is not in use, it must be sealed with an integrated-node blanking plug to achieve complete shielding, full insulation, and total enclosure.
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