When doing various activities outdoors, the Outdoor Extension Lead With Plug often becomes our right-hand man. However, to ensure the safe and effective use of the outdoor extension lead, it is crucial to correctly match its rated current and voltage with our electrical equipment.
First, we need to understand the power requirements of the electrical equipment. Different electrical equipment has different powers, and the power can be determined by looking at the nameplate or manual of the equipment. The power calculation formula is P = UI (where P is power, U is voltage, and I is current). For example, if a 1000-watt electrical equipment works at a voltage of 220 volts, according to the formula, its working current is about 4.55 amps.
After understanding the power requirements of electrical equipment, let's take a look at the rated current and voltage of the outdoor extension lead. Generally speaking, the rated voltage of the outdoor extension lead is usually 220 volts or 110 volts, which matches the voltage of most electrical equipment we use in daily life. The rated current varies depending on the extension cord model, and the common ones are 10 amps, 16 amps, etc.
During the matching process, the rated current of the extension cord must be greater than or equal to the total working current of the connected electrical devices. If the rated current of the extension cord is too small, when the electrical devices are working at the same time, it may cause the extension cord to overload and heat, and even cause safety accidents such as fire. For example, if you use a 1000-watt electric oven and an 800-watt electric kettle at the same time, their total power is 1800 watts. At 220 volts, the total working current is about 8.18 amps. At this time, you need to choose an outdoor extension cord with a rated current of at least 10 amps.
In addition, you also need to pay attention to the quality and use environment of the outdoor extension cord. A high-quality outdoor extension cord should have good insulation, waterproof and wear resistance to ensure safe and reliable operation in various harsh outdoor environments. During use, avoid exposing the extension cord to sunlight, rain or near heat sources to avoid affecting its performance and life.