Also, during prolonged work, the cable could overheat and trip the circuit breaker on the meter.In most cases, sockets and lighting in rooms are powered from different circuit breakers, so the presence of light in the room does not mean that everything is in order.
To make sure there is voltage in the network, you need to use an indicator screwdriver or a multimeter. It is better to take a multimeter in your hands, and after setting it to measure alternating voltage over 220 V, insert the probes into the socket holes. If there is electricity in the socket, and its indicators correspond to the norm (not lower than 190 V and not higher than 250 V), then we proceed to the next stage of the check.
The electric motor of the tool receives current through the power cord, the length of which depends on the manufacturer producing the hammer drill. When working with the tool, you can damage not only the israel telegram data cable in the wall, but also the power cord. And this may not necessarily be the working nozzle of the tool, but also the crushing of the wire by a door or other objects, tools and materials.
You can detect a faulty wire in the following way - visually inspect it for defects in the form of squeezing, damage and melting. If there are no signs of defects, then it is too early to beat the drums. The core could have become thinner, so to determine 100% serviceability of the network cable, you will need to ring it.
To test the network cable, you will need to disassemble the hammer drill. More precisely, you do not need to disassemble the entire tool, but only its handle. After that, set the tester to the test mode, and touch one probe to the terminal on the plug, and the second to the wire core (connected to the button), to check.