Intelligent protection device for full-range high-voltage test

An intelligent protection device for a full-range high-voltage test comprises a fence, the two sides of the fence are each connected with a transmission expansion device, and each transmission expansion device comprises two transverse pipes. The transmission expansion devices are additionally arranged on the basis of the fence, so that on one hand, the device can be in a folded state when not being overhauled, and on the other hand, the transmission expansion devices can be in a closed state when not being overhauled; therefore, the space occupied by the fence is saved. When a person carries out maintenance, the transmission expansion device can be expanded and unfolded towards one side, so that the space of an area surrounded by the fence is expanded, maintenance personnel can conveniently carry out maintenance in the fence, and meanwhile irrelevant personnel can be prevented from entering the fence. 一种全范围高压试验智能防护装置，包括围栏，围栏的两侧均连接一个传动扩展装置，传动扩展装置包括两个横向管，本发明在围栏的基础上增设了传动扩展装置,传动扩展装置，一方面在未进行检修时，可以处在折叠收起状态，从而节约围栏的占