| 摘要 |
A test box for measuring an electric voltage is provided to reduce labor power and to shorten a working time by eliminating a foreign material removal process. A test box for measuring an electric voltage is installed at a road surface in order to measure an electric voltage of a gas pipe. The test box includes a body(10), a rotary switch terminal(20), and a terminal fixing plate. The body has a cylindrical structure including an open lower part. The switch terminal penetrates an upper surface of the body. The switch terminal is made of an electrical conductor. The terminal fixing plate includes a plurality of connective terminals which are connected to a lead line. The connective terminals are installed in the inside of the body. |
