In general, it is safe to turn on appliances before turning on the wall switch. Most modern appliances are designed to handle power fluctuations and can be turned on in any order. However, it's important to note that there are a few exceptions and considerations to keep in mind:
Safety Guidelines: Always follow the manufacturer's instructions and safety guidelines provided with your appliances. They may have specific recommendations for powering on and off the appliance.
Sensitive Electronics: Some sensitive electronic devices, such as computers or audio/video equipment, might have a recommended power-on sequence. In such cases, it's advisable to consult the manufacturer's instructions or documentation for the proper procedure.
Power Surge Protection: If you have surge protectors or power strips connected to your appliances, it's generally recommended to turn on the wall switch first, and then the power strip or surge protector. This sequence helps avoid power surges that can occur when turning on multiple devices simultaneously.
Energy Efficiency: If you're concerned about energy efficiency, it may be more efficient to turn on the wall switch first and then power on your appliances. This way, you can avoid leaving appliances in standby mode and consuming power when not in use.
In summary, while it is usually safe to turn on appliances before the wall switch, it's important to consider any specific instructions provided by the manufacturer and the nature of the devices you are using.