How to choose household leakage protector
1. Products that meet the national technical standards must be selected.
At present, all single-phase leakage protectors on the market belong to current type. 1The national standard GB6829-86 "Leakage Action Protector" promulgated and implemented in July 1987 put forward specific requirements for the technical conditions and test methods of leakage protector products. In the same year, the State Machinery Committee issued a document stipulating that the leakage current action protector shall implement a compulsory safety certification system, which shall be organized and implemented by the China Electrical Product Certification Committee. Products that pass the safety certification will be issued with production licenses to enterprises. Therefore, users must choose products that meet BG6829-86 and pass safety certification when purchasing household single-phase leakage protectors. This product will be printed on the manufacturer's product instruction manual, stating that it has passed the safety certification of China Electrical Product Certification Committee, and the certificate number is ××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××
2. The technical performance indicators of the selected products should meet the household electricity demand.
The technical performance indicators of single-phase leakage protector products should be mainly understood as follows for users to choose:
(1) rated voltage and frequency
The rated voltage of the leakage protector is 220V AC and 380V AC, and the household electricity is single-phase, so products with rated voltage of 220v AC/50hz should be selected.
(2) Rated current and rated current of overcurrent release
The rated current of leakage protector mainly includes 6, 10, 16, 20, 40, 63, 100, 160, 200, 250, 400A and other specifications. For the leakage protector with current protection, under the same rated current level, the overcurrent release will have several rated current values. For example, DZL 18-20/2 leakage protector has the functions of leakage protection and overcurrent protection, and the rated current is 20A, but the rated current of overcurrent release is 10A, 16A, 20A, that is, DZL 18-20/2 products will have three different specifications. Under the AC working voltage of 220V, users can roughly estimate the rated current of the leakage protector according to the current of 1kW load of about 4.5 ~ 5a. If the total power of household appliances is about 4kW, a single-phase leakage protector with a rated current of 20A should be selected. The rated current of overcurrent release should be as close to the actual current of household electricity as possible. In the above example, although the total power of household electrical appliances is 4kW, it is very rare for all household electrical appliances to start working at the same time, and for a single electrical appliance, it must be fully loaded when working. Therefore, if the household chooses a single-phase leakage protector with overcurrent protection, the rated current of its trip should be 16A. In general, the rated current value of 0.85 ~ 0.9 times can be determined as the rated current value of the overcurrent release.
(3) Number of poles
There are three kinds of leakage protectors: 2-pole, 3-pole and 4-pole, and 2-pole leakage protector should be selected for household electricity.
(4) Rated leakage current
Rated leakage action current refers to the leakage current value that the leakage protector must act under the conditions specified by the manufacturer. The rated leakage current of leakage protector mainly includes 5, 10, 20, 30, 50, 75, 100, 300, 500, 1000, 3000mA, etc. Among them, 30mA or less belongs to high sensitivity; Genus sensitivity greater than 30mA and less than or equal to 100mA: genus sensitivity greater than 1000mA is low. The main purpose of choosing leakage protector for household appliances is to prevent people from getting an electric shock, so a highly sensitive product with rated leakage current less than or equal to 30mA should be selected. In fact, if it can be used as a leakage protector for personal protection, it can also be used as a protection against leakage fire and equipment leakage damage.
(5) Rated leakage action time
Rated leakage action time refers to the maximum leakage breaking time corresponding to rated leakage action current under the conditions specified by the manufacturer. The rated leakage action time of single-phase leakage protector is mainly less than or equal to 0. 1 sec, less than 0. 15 sec and less than 0.2 sec. The quick leakage protector is less than or equal to 0. 1 sec, and the household single-phase leakage protector whose main purpose is to prevent people from getting an electric shock should choose a quick product less than or equal to 0. 1 sec.
Household leakage protector manufacturer's inventory
1, Shanghai Guardian Electric Co., Ltd.
Shanghai Guardian Electric Co., Ltd. (hereinafter referred to as Guardian Electric) is a modern enterprise integrating R&D, production and sales. ? Household appliances have been committed to upgrading and technological innovation in the field of electrical products. Our slogan is "the wisdom of the family, enjoy its ability." This is the motivation for people in our family to constantly surpass themselves, dare to innovate and strive for their ideals. Adhere to the quality management of "technology leading and customer first". Products are widely used in homes, hotels, schools, factories, gas stations, laboratories and public places.
Talent is the key to the development of the company. At the same time of rapid and steady development, household appliances are committed to cultivating and developing key talents in various positions to meet the needs of the company's development for talents. The company cooperates with the development of the marketing network, establishes a customer service system, and develops the market in all directions. At the same time, we have a pre-sales and after-sales technical engineering team with excellent technology and service, providing customers with various system solutions, collecting first-line market information and providing customers with quality products and best services in all directions.
2. Shanghai Fokai Electric Co., Ltd.
Shanghai Fokai Electric Appliance Co., Ltd. is located in Da Qiao Industrial Zone, Beibaixiang Town, Yueqing City, with a workshop area of 5,000 square meters and more than 80 employees, specializing in the production of small circuit breakers, leakage circuit breakers, molded case circuit breakers, DZ47-63, DZ47LE, DZ 15LE, DZ 10 and DZ20LE. CM 1
3. Dongguan Zhantuo Electromechanical Equipment Co., Ltd..
Dongguan Zhantuo Electromechanical Equipment Co., Ltd. mainly sells electrical products of well-known brands such as Schneider, ABB, Siemens, He Quan, Omron, Mitsubishi and Johnson & Johnson of the United States. The product range includes: air switch, leakage protection switch, molded case circuit breaker, contactor, motor protection circuit breaker, relay, frequency converter, soft starter, PLC, switching power supply, button indicator light, sensor, limit switch, wind pressure difference switch and other products. Over the years, it has enjoyed a high status among many customers at home and abroad, and has established long-term and stable cooperative relations with many customers. The company has strong strength, pays attention to credit, abides by contracts and ensures product quality. With professional management characteristics and the principle of small profits but quick turnover, we have won the trust of our customers.
The above is the manufacturer's recommendation for household leakage protector. The existence of household leakage protector is necessary. Nowadays, many people use electrical appliances at home, and without safety measures or preventive measures, it is easy to cause accidents. Installation of household leakage protector can play a protective role. When installing a household protector, it is best to turn off the power supply of the whole family to prevent electrocution during installation. If you can't install it, you can ask the master to install it.