The resistance wire of an electric heater is made of nickel-chromium alloy, with temperatures reaching above 800°C. Due to the relatively high power of electric heaters, if users neglect safety, a fire can occur at any time.
Therefore, during use, flammable and explosive items should not be placed near the electric heater; a certain safety distance must be maintained. The electric heater must be placed on a non-conductive, non-combustible material base. The safe current-carrying capacity of the electric heater's wires must meet the heater's capacity requirements. Industrial electric heaters must be equipped with a separate circuit under any circumstances. The wires must be fitted with plugs; the wire ends of the electric heater should not be directly inserted into the socket. Wires that are aged or damaged should be replaced promptly. Electric heaters without a fuse installed in the circuit must not be used. The electric heater must be attended during use; the plug should be removed when leaving. In case of a power outage during use, the plug of the electric heater should be promptly pulled out to avoid forgetting. For resistance wires that have been repaired multiple times, it is best not to use them again; replace them with new resistance wires. Flammable and explosive items are strictly prohibited from being dried with electric heaters. The electric oven should have a temperature control device to prevent both excessive temperature and prolonged heating time.
