It is generally not recommended to plug a washing machine or dishwasher into an extension lead (also known as an extension cord or power strip) for several reasons:
Electrical Load: Washing machines and dishwashers are high-power appliances that draw a significant amount of electricity during operation. They require a stable and direct electrical connection to handle their power demands. Plugging them into an extension lead along with other devices can overload the extension cord and increase the risk of overheating or causing a fire.
Safety Concerns: Extension leads are designed for lower-power devices like lamps, chargers, and small electronics. They may not be equipped to handle the electrical load of heavy-duty appliances. Using an extension lead could lead to electrical issues, including short circuits and electrical fires.
Voltage Drop: When you use an extension lead, especially a long one, it can result in voltage drop. This means the appliance may not receive the required voltage for optimal performance. Additionally, voltage drop can cause damage to the motor and other sensitive components of the appliance over time.
Inconvenience: Washing machines and dishwashers are typically placed in specific locations, often near a water supply and drainage. Using an extension lead may not provide the convenience of placing the appliance exactly where you need it, as the cord's length could be limiting.
Instead of using an extension lead, it is best to have a dedicated and properly installed electrical outlet for each of these appliances. If you need additional outlets or a new circuit for these high-power appliances, it is advisable to consult a licensed electrician to ensure that the electrical work is done safely and up to code. Electrical safety is essential to prevent hazards and ensure the longevity of your appliances.