When using an electrical extension cable for charging Electric Vehicles (EVs), there are several important factors to keep in mind to ensure safety and proper charging. Here are some key considerations:

Cable Type: Use a high-quality, heavy-duty extension cable specifically designed for outdoor use and capable of handling the required current for EV charging. It should be rated for the appropriate voltage and amperage.

Length and Gauge: Choose an extension cable with an appropriate length to reach the charging point without excessive slack. Additionally, consider the gauge (thickness) of the cable. Thicker gauge cables have lower resistance and can handle higher currents without overheating.

Cable Rating: Ensure that the extension cable's amp rating matches or exceeds the amperage required by your EV charger. Using an extension cable with a lower amp rating than what your EV charger requires can lead to overheating and potential hazards. Look for cables with relevant safety certifications (e.g., ISI) to ensure they meet safety standards.

Weather Resistance: Look for an extension cable that is weatherproof and suitable for outdoor use. It should have adequate insulation and protection against moisture, UV rays, and other environmental factors.

Proper Connections: Ensure that the extension cable is securely connected to both the EV charger and the power source. Loose or faulty connections can lead to voltage drops, overheating, arcing and potential damage. Never daisy-chain multiple extension cables together to reach your charging point. Each additional connection can increase resistance and voltage drop, making charging less efficient and potentially unsafe.

Avoid Overloading: Do not overload the extension cable by plugging in additional high-power devices simultaneously. This can exceed the cable's capacity and create a fire hazard.

Earthing: Ensure that the extension cable has a proper earthing connection to minimize the risk of electrical shocks. Some EVs will not charge without detecting proper earthing connection.

Unroll Completely: When using a coiled extension cable, make sure to unroll it entirely before charging your EV. Coiled cables can overheat due to the increased resistance in the coil.

Regular Inspection: Regularly inspect the extension cable for any signs of wear, damage, or frayed wires. If you notice any issues, replace the cable immediately to prevent safety risks.

Proper Storage and Handling: Store the extension cable properly when not in use and avoid coiling it tightly during storage, as this can lead to damage.

Consider Permanent Installations: For regular use, consider installing a dedicated EV charging station near your parking spot with the help of a certified electrician. This can provide a safer and more efficient charging solution.

Remember, safety should always be the top priority when dealing with electricity and EV charging. If you have any doubts or concerns about using an extension cable for charging your EV, it's best to consult a certified electrician or the manufacturer of your electric vehicle for guidance.