The invention discloses a special wire clamp for a
voltage loop of a metering device. The special wire clamp comprises a
pile head connecting part and a secondary outgoing line connecting part fixedly connected with the
pile head connecting part, wherein the
pile head connecting part is detachably and fixedly connected to a
transformer pile head, and the secondary outgoing line connecting part is detachably connected with a low-
voltage side wire and a
secondary loop power taking wire. According to the special wire clamp, a
secondary circuit low-
voltage line and a low-voltage main line can be separately wired and do not interfere with each other, meanwhile, a connection mode of a
transformer low-voltage pile head and a low-voltage outgoing line is not affected, the trend of the
secondary circuit voltage taking line of the metering device can be clearly seen through the novel connection wire clamp, the problems of poor contact and
lap joint oxidation of the low-voltage line are effectively solved, and by improving the connection mode, sampling of the voltage
secondary circuit of the metering device is reliable and precise.