A few days ago, some media reported that a girl was bathing in a rented house, the electric water heater leaked electricity and killed her, and another girl was rescued and killed. Now there are many people who install electric water heaters. They are worried about this news. The electric water heaters are not safe. How to prevent leakage? How to rescue them when there is leakage?
worry
Is the electric water heater safe?
"Guangzhou has a girl using an electric water heater to bathe, and the result is a leak." Yesterday morning, in the urban area of ​​Jiangbei Xinjiang Road, a community of WeChat group, a landlord issued such a message, a lot of neighbors. "My home is also an electric water heater." "My home has also installed 2!" "My home is an electric water heater, it took 5 years." Some owners saw this news and began to worry. “How is it safe to use an electric water heater?â€
Mr. Wang installed two electric water heaters at home. “One is installed in a small balcony and the other is installed directly in the toilet.†Mr. Wang said that his two water heaters, one hot type and one half water storage type. According to him, after three or four years of use, the leakage switch was tested more than ten times. "I remembered it before I clicked." Mr. Chen installed an electric water heater in his hometown. "It has been used for 5 years and it has been very good. I have hardly tested the leakage switch." Mr. Chen said that he did not think about using safety. However, he is now worried about his home's electric water heater. “The old man at home is using it, and the water heater is installed in the toilet, and the outer casing has begun to fall off. See if it is necessary to change it.â€
During the interview, the reporter learned how to prevent the safety of electric water heaters. Many citizens not only have no safety awareness, but also do not know how to prevent them. "I didn't think so much, the leakage switch was occasionally clicked." Citizen Haiguang said. Citizen Amei also told reporters that their family's electrical appliances are her husband's responsibility. She did not think about this aspect. After seeing this news, she was very worried about the safety of electric water heaters at home.
Suggest
Water storage type electric water heater, it is necessary to turn off the power when taking a bath
Liu Xiang, a citizen, is a plumber who usually likes to study electrical appliances. "Citizens want to prevent leakage, first of all when buying electric water heaters." Liu Xiang said that some inferior electric water heaters on the market are actually a metal barrel that heats up quickly. This inferior product has no leakage safety protection devices and is low in price. Don't be tempted to buy this product cheaply. At present, mainstream middle and high-end water heater products on the market are equipped with leakage protection devices, which is also a mandatory measure for electric water heater products. If there is leakage, the electric water heater can reduce the voltage from 220 volts to less than 100 volts, which will not cause fatal damage to the human body; or the water heater will automatically power off after the leakage occurs.
At the same time, he also reminded the public that the power supply of the electric water heater must have a reliable grounding wire. The household power supply system must have a leakage protection device. A fixed three-eye socket must be used, and the fire wire, neutral wire and ground wire must be connected correctly. The location of the power outlet should be set where the water can't be splashed, and use a splash-proof socket. "The electric water heater installed in the toilet must have a special line and be installed directly into the distribution box." Liu Xiang reminded the public that the electric water heater has a leakage prevention switch, which must be tested once a month. "Press the check button on the leakage switch, and immediately press it to trip, indicating that it is effective. Otherwise, the electric water heater should be deactivated and repaired immediately." In addition, the service life of the electric water heater is usually 6~8 years. If it exceeds the age, it will continue. If used, there will be security risks and need to be replaced in time. It is best to turn off the power when storing water-type electric water heaters.
Rescue
Don't blindly rescue, you should cut off the power first.
Liu Xiang said that once the public finds that the electric water heater is leaking, immediately turn off the power and unplug the plug. Be especially careful about electric shock caused by water flow. If you find water on the bathroom floor, do not pull the plug inside. Pull the main switch off and then pull it out. If someone leaks electricity while taking a bath, special attention should be paid to the rescue. "Don't blindly rush in to rescue, and don't reach out to save. The first is to cut off the power. If you can't find the power supply for a while, you can also find an insulated thing, such as a wooden stick or a plastic tube, and pick up the electric shock and power. contact."
At the same time, if the electric shock is removed from the power supply, if the electric shock is found to be unconscious, coma, loosen the neckline and waistband of the upper body that affects the breathing, so that the electric shocker is in a supine position, remove the foreign matter in the mouth, and keep the breath open. If you find that your heart is beating, you should immediately perform artificial respiration and chest compressions to avoid missing the gold rescue time and dial 120 as soon as possible. Author: Lotus Square
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High Speed Door Motor And Control Box
Our company have German SEW Motor, Japan Mitsubishi Controller. Our own brand Hofic servo motor and controller. Chinese famous brand SEJ motor and Holip controller.
About our German SEW Motor and Japan Mitsubishi Controller: It is easy to find the ideal energy-efficient motor for your application at SEW. The series has a suitable design in its range for the globally applicable efficiency classes. Select the power and frequency within this motor design and you have already taken care of the most important selection criteria.All other motor options are of course available independently of the efficiency class. A comprehensive braking concept and cost-optimised built-in encoders ultimately complement the motor range. Comprehensive braking concept and combinations i.e. up to three different brake sizes per motor size featured in the range: Cost-optimised built-in encoders integrated into the motor. Motors for efficiency classes IE1 to IE4.Compact design saves space and costs. Future-proof, also as regards environmental protection (standards). Reduction in operating costs when using energy-efficient motors; our energy-efficient motors conform to the efficiency classes.
About servo High Speed Door Servo Control System: Our rolling gate servo control system is suitable for high speed and high usage soft and hard rolling gate. The whole system is in a small and light package, it has high torque and high operating speed, lower noise, high reliability, smooth and soft operating curves, it`s suitable for high speed and usage environment. The rolling curtain can be controlled by pull switch, push button, Bluetooth, ground radar, ground magnetic sensors. Operating Speed: 1M/s; Operating Width: ＜16 ㎡; Daily operating time: ＞2000 time; Rated voltage: 220v; Rated Output: 0.75 KW/1.5KW.
The system can operated via: 1) control box; 2) inching electronic control; 3) continuous automatic operation; 4) emergency stop; 5) single side operation box; 6) time delay; 7) ground radar and/or magnetic sensors. Please refer to Wiring Terminal for eternal connections.
System has fuse/safety wire shutdown switch for three-phase power protection, fuse/safety wire for operating circuit protection, and temperature sensing relay for motor protection.
Stroke Controller utilizes absolute value encoder. Connect the absolute value encoder and reducer via encoder`s axle, and fix the wings on to the reducer, than insert the aviation plug into plug receptacle.
The mounting screw for the control box must inspect regularly to prevent screw been getting loose and falling off. Check the internal and external wirings. Check and change the oil for the redactor on regular basis.
Precision: The system use Full closed-loop servo control and Double Encoder design. This is to ensure long operating life and to prevent overshooting during operating.
Stability: The system utilizes integrated design concept, in order to simplify internal wiring and prevent any function caused by wiring and terminal connections.
High Speed: Motor max speed is 2500 rpm; door max operating speed is 2 m/s.
Smooth: The torque servo system can adjust torque to the load automatically, and its speed curve mode step less speed regulating to ensure a smooth operation.
About SEJ motor and Holip controller: Three-phase asynchronous motor with magnetic brake has broad uses, It is suitable for various mechanical main drive and auxiliary drive, and it is also used for various required rapid stopping and correct positioning. The braking time within 0.2 second. Electric motor is added the DZM series direct current electromagnetic arrester by the basic series(Y series) electric motor.The protection class of electric motor part is IP44,the arrester part is IP23.if be applicable to bad environment can also make the arrester part into IP44,but customer have to put forward a special request while ordering,the manufactory can design a manufacturing exclusively. Its structure diagram is picture 1 and 2,picture 1 is the structure with hand release.Picture 2 is the structure without the hand release.Its operating principle BE, after being to make the retardation coil(6)to connect direct current power supply,because of the function of electromagnetic force,electromagnet(7)attract gag bit(5),and compress spring(24),make arrester disc(2)away from the friction surface of the gag bit(5)and shield(26)(the electrical motor can immediately operate normally).When the power supply cuts off after,the electromagnet(7)loses electromagnet force,the spring(24)releases the gag bit(5)and compress tightly to arrester disc(2),the arrester function,stop(the motor shaft)quickly,make electric motor shop turning to move,for the second time connect power supply will repeat above-mentioned action.
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Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.selfrepairinghighspeeddoor.com