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The strain clamp is mainly used for conducting wires and lightning rods on nonlinear pole tower of aerial electric lines or in transforming stations.They are connected to strain insulators by connecting clamp;or fix lightening rods on the pole tower.According to different structures and installation methods,they are divided into three types including bolt type and compressed materials,they can be divided into two types:forgeable cast iron and aluminum alloy.of which,the aluminum alloy clamp is also the energy saving anchor clamp.