Knowledge of proper electrical safety is essential for safety reasons. A person can be subject to electric shock, burns, or, in the worst case, an electric shock which can lead to death if they are not familiarized with electrical safety. Basic electrical safety guidelines must be understood when working with or around electricity.
Bad wiring is a common cause of many workplace electrical accidents. For this reason, all devices in power tools must always be used properly, as improper use can damage the device cables.
If power tools must not be connected to cables, this can weaken the cable, which can eventually be removed. Checking power tools for cracks or damage to cables can reduce the risk of impact.
If an extension cord must be used while working on a construction site, the extension cord should be checked for power consumption. If the voltage of the electrical equipment connected to the extension cord is too high, the cord may become hot and cause an electrical fire. It is also important not to connect too many power tools to the extension cord at the same time, as this may result in an electrical fire.
Some appliance manufacturers understand the importance of electrical safety. Many power tools commonly used on construction sites are double insulated. This means the cable has additional protection that protects the current from workers using power tools.