Traditional Culture Encyclopedia - Weather forecast - How about ls leakage protector? Introduction of purchasing skills of household leakage switch
How about ls leakage protector? Introduction of purchasing skills of household leakage switch
1. How about ls leakage protector?
All categories of LS power generation are as follows: LS power generation air switch/circuit breaker, LS power generation electrical equipment.
In order to gain stronger competitiveness in the global market, according to the different nature of the industry, the original LG Group is divided into LG Group focusing on electronics and chemistry, GS Group focusing on energy and construction, and LS Group focusing on power and cable. LS Power Generation (formerly LG Power Generation) was established in 1974, and currently ranks first among Korean manufacturers of industrial electrical automation products.
Second, the purchase skills of household leakage switch
1, in line with national technical standards.
At present, the leakage protectors sold in the market are mixed, and the product quality is uneven. When purchasing, we must pay attention to whether the product has passed the national standard GB6829-86 "Leakage Action Protector". This parameter can be found in the manufacturer's product instruction manual. The general format is: "It has passed the safety certification of China Electrical Product Certification Committee, with the certificate number of * * * *, which meets the standard: BG6829-86.
2. The technical performance indicators of the selected products are suitable for domestic electricity demand.
Rated voltage, frequency and serial number
The rated voltage of the leakage protector is only 220v and 380v, and the household electricity belongs to single-phase power supply, so the voltage is AC 220v/50Hz. There are three levels of leakage protectors: Level 2, Level 3 and Level 4. For general household use, level 2 is enough.
3. Rated current and rated current of overcurrent release.
There are many rated current specifications of mainstream leakage protector, but the rated current of overcurrent release is only 10A, 16A, 20A. It should be noted that the AC power supply is 220V, and users can roughly calculate the rated current of the leakage protector according to the current of 1kw load 5A. In general, it can be determined as the rated current value of the overcurrent release according to 0.85 ~ 0.9 times of the rated current value.
4. Rated leakage current
Rated leakage current refers to the leakage current value that ensures that the leakage protector is not allowed to act, which is divided into three grades. Household leakage protectors need to be selected with high sensitivity to ensure personal and property safety.
≥30mA, high-sensitivity leakage protector;
100ma & gt; 30mA, medium sensitivity;
>1000 ma, low sensitivity.
5, rated leakage action time
Corresponding to the maximum leakage breaking time of rated leakage action current, the single-phase leakage protector has three rated leakage action times, namely ≤0. 1 sec. Today, I recommend the matters needing attention in the process of purchasing leakage protector and the information and skills of choosing household leakage switch. Therefore, first of all, as a protective switch, the leakage protector can cut off the circuit in time when the current leaks. On the other hand, suitable and reasonable leakage protectors can also provide us with a series of rich models and specifications, so we can avoid casualties and property losses in an emergency. When purchasing, you can combine the above to understand and classify.
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