Detection of hidden wiring

Detection of hidden wiring

When drilling holes in the walls hidden wiring there is a risk to get a drill in the wire. Find hidden wiring in the wall you can with the help of a tape recorder. To do this, connect the recorder to the dynamic microphone and switch on the record with a maximum gain. Spend a microphone along the wall. In laying the ground wiring of the dynamics of the tape you will hear a low hum. Away from the buzz of the wiring weaken. Drilling safely in a place where the roar ischznet.

Source: magazine "Science and Life», №2, 2002 .