Ten Questions and Ten Answers to Home Lightning Protection
1. Q: Is it necessary to install lightning protection devices and cold-shrinkable cable terminals if the air switch is installed in the electrical box of the home?
Answer: The response time of the MCB is milliseconds, and the speed is too slow. When there is a lightning current passing, the MCB has no time to act, and the current has passed. To protect subsequent electrical equipment, a surge protector (SPD) or lightning protection device should be installed, and the response time is nanoseconds. The MCB only breaks the circuit when there is overcurrent or short circuit. The function of the lightning arrester is to use a good lightning path to lead the overcurrent into the earth and limit the overvoltage.
2. Q: When it is thundering and raining, do you feel comfortable using your computer?
Answer: After a thunderstorm, it is often found that the Internet cannot be accessed. After inspection, the “modem” at the entrance of the network cable was damaged by the lightning induced voltage impact. Home computer lightning protection can start from two aspects: power system lightning protection and signal lightning protection. Suzhou Kejia NKP series and KDY series power lightning protection devices have multi-level lightning protection. NKP-TEL-5 series network signal lightning protection devices can be used for lightning protection of Ethernet communication network ports. RJ45 standard network interfaces are used, which are suitable for installation. Between the input and output of each communication network device, it plays a role of lightning protection and safety protection.
3. Question: Is there a lightning protection device outside the building, is it necessary to install a lightning protection device indoors?
Answer: There are direct lightning strikes and induced lightning strikes. Direct lightning strikes can be used to protect buildings through lightning rods and lightning protection. Generally, after the building is built, the builders solve these problems. The lightning protection of our home is mainly the induction lightning protection, which is the lightning that enters the room through metal cables. For European-style cable connectors, it is recommended to install a lightning protection module at the inlet end of the electrical box, and then use a lightning protection socket at the electrical terminal, and install a lightning protection device for the network cable, telephone and TV signal ports to achieve lightning protection.
4. Q: What is the difference between household lightning protection sockets and ordinary household sockets?
Answer: Ordinary household sockets only play a role in power distribution, and are far inferior to lightning protection sockets in terms of functionality and safety. Suzhou Kejia's latest household lightning protection socket is a multifunctional four-in-one intelligent safety socket integrating leakage protection, short circuit protection, lightning protection and overvoltage and undervoltage protection.
5. Why should a family house be equipped with a lightning protection device?
Answer: According to statistics in recent years, the number of household equipment damaged by thunder and lightning has gradually increased each year, causing losses to family property and safety. Therefore, in order to reduce the recurrence of this situation, from the perspective of people's safety, relevant state departments have stipulated that residential communities must be equipped with lightning protection devices.
6. Question: Why does the color TV at home suddenly become silent after a thunderstorm?
Answer: We often hear that this phenomenon is sometimes encountered, that is, the color TV has no picture or sound after a thunderstorm. The reason is that during a thunderstorm, the lightning surge voltage is induced into the TV, causing the electronic components inside to malfunction, causing the TV to malfunction and damage. The best way is to install a TV feeder signal lightning protection device.
7. Q: Why use a power socket for lightning protection?
Answer: With the progress of the times, more and more electronic products and high-end home appliances have become popularized, such as: air conditioners, TVs, computers and so on. While people enjoy the enjoyment of these electronic products, lightning protection safety is also an important factor worth considering. In order to prevent the losses caused by lightning attacks, we should minimize the losses as much as possible. The power lightning protection socket is a good choice.
8. Question: The battery car was charged at home, and the charger was suddenly burned out. What was the reason?
Answer: Because the power supply voltage is unstable during charging, the components in the battery car charger are damaged, causing the battery to catch fire. The easiest way is to install an over-voltage and under-voltage protector at the front end of the battery car to ensure that the voltage is stable during charging.
9. Q: Why do you need to install a power lightning protection box and European-style cable connector?
Answer: If there is a need for lightning protection devices in a household, installing one lightning protection box is simpler and more beautiful than installing multiple lightning protection devices. The lightning protection box is powerful, can protect a variety of home appliances, is reliable in use and easy to install. Kejia safe and complete household lightning protection integrated device is available for everyone to choose.
10. Q: Why should under-voltage and over-voltage protection devices be installed in the household appliance box?
Answer: Once the power supply circuit of household appliances fails, the voltage will rise and the current will increase, which will not only damage the electrical appliances but also cause fires, so undervoltage and overvoltage protectors must be installed.
Yichang Hengyuan Technology Co., Ltd. is a professional manufacturer of European-style cable connectors, plug connectors, cable branch boxes, American elbow connectors, high-voltage vacuum circuit breakers, high-voltage load switches, lightning arresters, zinc oxide arresters, tank arresters, overvoltage protectors, Counters, monitors, heat-shrinkable cable accessories, cold-shrinkable cable accessories, T-shaped heads, wall bushings, European cable accessories, American cable connectors, transformer neutral point protection devices, fuses, isolation switches, PT cable heads, elbows Manufacturers of type cable joints, 10kV outdoor terminals, switch cabinets, cable intermediate joints, cable accessories and other products
