Ten Questions and Answers on Home Lightning Protection
1. Question: If a circuit breaker is installed in the electrical box at home, do I still need to install a lightning protector and cold shrink cable terminal?
Answer: The response time of the circuit breaker is on the millisecond level, which is too slow. When lightning current passes through, the current has already passed before the circuit breaker can act. To protect subsequent electrical equipment, a surge protector (SPD) or lightning arrester should be installed, with a response time of nanoseconds. The circuit breaker only disconnects the circuit when overcurrent or short circuit occurs. The function of the lightning arrester is to use a good lightning path to guide the overcurrent into the earth and limit the overvoltage.
2. Question: Do you feel safe using your computer when it’s thundering or raining?
Answer: After a thunderstorm, it is often found that the Internet cannot be accessed. After inspection, it is found that the "modem" (MODEM) at the entrance of the network cable has been damaged by the induced voltage impact of lightning. Home computer lightning protection can be carried out from two aspects: power system lightning protection and signal lightning protection. Suzhou Kejia NKP series and KDY series power supply lightning arresters have multi-level lightning protection. NKP-TEL-5 series network signal lightning arresters can be used for lightning protection of Ethernet communication network ports. They adopt RJ45 standard network interface and are suitable for installation between the input and output of various communication network equipment to provide lightning protection safety protection.
3. Question: There is a lightning protection device outside the building. Do I need to install a lightning protection device indoors?
Answer: Lightning is divided into direct lightning and induction lightning. Direct lightning can protect buildings through lightning rods and lightning protection belts. Generally, after the building is built, the builder will solve all these things. Our home lightning protection mainly protects against induction lightning, which is induced by lightning entering the room through metal cables. For European-style cable joints, it is recommended to install a lightning protection module at the incoming end of the electrical box, and then use a lightning protection socket at the electrical terminal. In addition, lightning protectors for network cables, telephones, and TV signal ports must be installed to achieve lightning protection effects.
4. Question: What is the difference between household lightning protection sockets and ordinary household sockets?
Answer: Ordinary household sockets only play the role of power distribution, and are far inferior to lightning protection sockets in terms of functionality and safety. The latest household lightning protection socket launched by Suzhou Kejia is a multifunctional four-in-one intelligent safety socket that integrates leakage protection, short circuit protection, lightning protection and overvoltage and undervoltage protection.
5. Why should families install lightning protectors?
Answer: According to statistics in recent years, the number of household equipment damaged by lightning is gradually increasing every year, causing losses to household property and safety. Therefore, in order to reduce the recurrence of this situation, from the perspective of people's safety, the relevant national departments have stipulated that residential areas must be equipped with lightning protection devices.
6. Question: Why does the color TV at home suddenly have no picture or sound after a thunderstorm?
Answer: We often hear about this phenomenon and sometimes encounter it, that is, the color TV has no image and no sound after a thunderstorm. The reason is that during thunderstorms, the surge voltage impact of lightning enters 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 protector.
7. Question: Why use a lightning protection socket for power supply?
Answer: With the progress of the times, more and more electronic products and high-end home appliances have become popular, such as air conditioners, TVs, computers, etc. While people enjoy the enjoyment brought by these electronic products, lightning protection safety is also an important factor worth considering. In order to prevent losses caused by lightning attacks, we should minimize the losses as much as possible. The power supply lightning protection socket is a good choice.
8. Question: I charged the battery car at home, but the charger 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 simplest way is to install an overvoltage and undervoltage protector on the charging front end of the battery car to ensure voltage stability during charging.
9. Question: Why should we install a power supply lightning protection box and European-style cable connector?
Answer: If a family needs lightning protectors, installing one lightning protection box is simpler and more beautiful than installing multiple lightning protectors. The lightning protection box is powerful and can protect a variety of home appliances. It is reliable in use and easy to install. Kejia's safe and complete comprehensive household lightning protection devices are available for everyone to choose from.
10. Question: Why should undervoltage and overvoltage protection devices be installed in household electrical appliance boxes?
Answer: Because once the power supply circuit of household appliances fails, the voltage and current will increase, which will not only damage the appliances but also cause fires, so undervoltage and overvoltage protectors must be installed.
Yichang Hengyuan Technology Co., Ltd. specializes in the production of European-style cable joints, plug-and-pull heads, cable branch boxes, American-style elbow joints, high-voltage vacuum circuit breakers, high-voltage load switches, arresters, zinc oxide arresters, tank arresters, over-voltage protectors, counters, monitors, heat-shrinkable cable accessories, Manufacturer of cold shrink cable accessories, T-heads, wall bushings, European cable accessories, American cable joints, transformer neutral point protection devices, fuses, isolating switches, PT cable heads, elbow cable joints, 10kV outdoor terminals, switch cabinets, cable intermediate joints, cable accessories and other products
