What role does UL 2272 play in the safety of electric scooters?

What role does UL 2272 play in the safety of electric scooters?

UL 2272 is a safety standard specifically for personal electric vehicles such as electric scooters. It plays a vital role in the safety of electric scooters, mainly in the following aspects:

Electrical safety
Electrical system test: Ensure that the components of the electric scooter, such as the motor, controller and electrical circuit, can work stably in extreme environments such as high temperature, humidity and vibration to prevent fire or explosion caused by electrical failure. Including short circuit test, overcharge and over discharge test, leakage current test, etc., to ensure that the electrical system does not generate harmful leakage current and prevent the risk of electric shock.
Electrical insulation performance test: Evaluate the insulation resistance between the live parts and the accessible metal parts in the electrical system to ensure that the performance of the insulation material is good and prevent the user from electric shock. Conduct a dielectric strength test, apply a certain AC or DC voltage between the live parts and the accessible metal parts of the electrical system for a certain period of time, check whether there is breakdown, flashover and other phenomena, and verify that the insulation material can withstand the specified voltage without electrical failure.

Battery safety
Battery management system (BMS): The product is required to have a complete battery management system that can prevent overcharging, overdischarging, short circuit and overheating. The battery must pass strict thermal shock, mechanical stress, short circuit tests, etc. to ensure that the battery management system can work normally under extreme charging and discharging conditions to prevent battery overheating, explosion or fire.
Battery testing: Test lithium batteries to prevent safety issues such as overheating, short circuit, and overcharging. Including thermal shock testing to evaluate the stability of batteries under extreme high and low temperature conditions; mechanical stress testing to simulate the performance of batteries under conditions such as falling and collision to ensure that battery failure will not be caused by mechanical shock.

Charging system safety
Charging circuit safety: The charging system must be safe and reliable to prevent overheating, leakage, short circuit and other problems during charging. The interface design of the charger and the skateboard must also meet the standards to ensure the safety of the charging process.
Charging temperature test: Test the temperature rise of the battery and charger when the electric scooter is charging to ensure that there will be no fire caused by overheating.
Electrical insulation test: Ensure that the insulation performance of the charger is good to prevent the risk of electric shock caused by current leakage.

Mechanical structure safety
Mechanical durability: The electric skateboard is required to withstand the mechanical stress in daily use and prevent electrical failures caused by vibration and impact. Through vibration and impact tests, the mechanical vibration and impact experienced by the electric skateboard during use are simulated to ensure that the electrical system can still work normally under severe vibration without poor contact or short circuit.
Mechanical component strength test: Check whether the body structure is strong enough to withstand the impact and pressure in daily use to prevent safety accidents caused by damage to mechanical components.
Environmental adaptability
Environmental testing: Evaluate the performance of electric scooters under environmental conditions such as high temperature, low temperature, and humidity. Including high temperature test, low temperature test and humidity test, ensure that the scooter can work normally under different environmental conditions and will not cause safety problems due to environmental changes.
Waterproof test: Evaluate the waterproof performance of the electric scooter to ensure that it will not cause electrical failures when used in wet or rainy days.