PConline Tips Home Appliances Radiation has always been highly regarded by consumers. In the face of social radiation on home appliances, consumers do not know what to say. Today, J. Jun, editor of the Pacific Computer Network, decided to become an undisciplined “Judge J†to conduct one-on-one “interrogation†of suspected radiant household appliances!
Before the initiation of the trial, Judge J is here to warmly remind the majority of netizens. What is the standard of electromagnetic radiation? Let's take a look:
Low frequency radiation less than 10V/m
Low frequency radiation less than 25V/m
After Judge J announced that he had been arraigned, a number of suspect household appliances were already waiting in line for trial. From these figures, it is not difficult for us to find out some common electrical appliances, including hair dryers and microwave ovens. What needs to be explained is that in this home appliance interrogation room, we used the defendant's self-defense, expert defense, and judge's trial to carry out three steps. To know whether the defendant's electrical appliances were convicted, we continue to look down.
Conviction One: The cumulative amount of radiation used by high-powered hair dryers for three consecutive times is equal to one X-ray at the hospital.
hair dryer
Hair Dryer: Judge adults, hey! The radiation of our hair dryer belongs to the low-frequency electromagnetic field. Although the intensity is high, it does not mean that it is more dangerous than microwave ovens and induction cookers that generate high-frequency electromagnetic fields. Our hair dryer electromagnetic radiation and the X-ray radiation described in the charges are two different categories of concepts. X-ray is an ionizing radiation, similar to nuclear radiation, and the radiation emitted by our hair-drier is non-ionizing radiation. The radiation can not be converted and there is no comparable. So, I do not plead guilty!
Close to the hair dryer motor radiation is indeed not low
Defense expert: For the radiation problem of various household appliances, we must first clarify the basic common sense. As long as the two ends of the appliance are connected to a voltage, there will be an electric field. As long as there is current flowing through the appliance, there will be a magnetic field around the current. Therefore, regardless of the size of the home appliances, as long as the relationship between electricity and the use of electricity will be more or less radiated out of the electromagnetic field. In addition, the power of the hair dryer is relatively large, and it can indeed radiate a strong electromagnetic field. However, the radiation of the hair dryer belongs to a low-frequency electromagnetic field, and the radiation intensity is far from the X-ray. To this end, according to the complaint against the hair dryer, I specifically did a corresponding test, there are plans and truth, do not believe please look at the map!
Distance from the hair dryer motor 15cm back to the normal environmental value
Judge J: As the defense has provided strong evidence for himself, it proves that the hair dryer radiation is not as large as the charges mentioned, but it can be used safely and the picture is also good. Therefore, the judge has now announced that he has been convicted. Not established , Hairdryer acquitted in court!
The second count: The microwave oven has nuclear radiation, heating the food to eat can cause cancer.
Take the microwave to test the radiation value
Microwave oven: Oh! Ladies and gentlemen, I need to explain my working principle. To put it plainly is to use frictional heat generated by water molecules. When microwaves are radiated into food, the food always contains a certain amount of moisture, due to the polarity of the water in the food. Exercise, as well as the interactions between adjacent molecules, produce similar frictional phenomena that raise the temperature of the water and, as a result, the temperature of the food rises. However, I am absolutely defensive of food, but only to help heating, never produce carcinogenic!
The radiation value measured on the outer wall of the microwave oven is quite high
Defense experts: Microwave ovens and radio waves, visible light, and nuclear radiation are all electromagnetic waves, but their properties are different. Nuclear radiation can cause some changes in organisms. Microwave and nuclear radiation are two different concepts. Nuclear radiation can cause body mutation and easily lead to canceration. Microwaves, like sun rays, do not produce so-called residual radiation. Therefore, I think it is unscientific to say that the use of microwave ovens causes cancer.
About 40cm from the microwave oven, the radiation value has returned to the normal environment
Judge J: At present, there is no clear evidence that “microwave oven heating food can cause cancerâ€. The industry believes that electromagnetic waves used by microwave ovens are non-ionizing radiation, and there is no such ability to cause cell cancer to change by ionizing radiation, only thermal effects. Therefore, the judge ruled that the charge was not established , but to remind users, when using the microwave oven, in order to avoid radiation, try to maintain it with a distance of about 1 meter, so that it can achieve the protection of the human body.
Conviction 3: The lamp is a high-radiation appliance and is the king of radiation.
table lamp
Table lamp: Isn't it? I have provided bright reading lamps for Guanghan University and overtime dogs every day. I am a first-rate citizen in the electrical industry. You don’t give me a full attendance bonus or an overtime bonus even if I don’t give me the charge. "The King of the radiation"? Besides, my power is no more than 30W. Where does the super radiation come from? If you don’t obey every day, you don’t obey every day.
Table lamp turns on the instantaneous radiation value of the switch to burst the watch
Defense expert: There is indeed electromagnetic radiation in the desk lamp and eye protection lamp. Here I would not hesitate to say something again. As long as there is current passing through, there will be the presence of electromagnetic radiation. Some household appliances will be powered on even if they are not turned on. The cord is plugged into the socket and there is electromagnetic radiation around. However, the lamp of the desk lamp is generally a fluorescent lamp, and an electronic ballast needs to be installed. The radiation intensity of the ballast at the moment of starting will be relatively large, which is 1.3 to 1.8 times that of normal operation, but the weakening is also extremely fast. Therefore, it is nonsense to simply give the lamp the “king of radiation†on the basis of the large amount of radiation data measured at the moment the lamp is turned on.
The radiation value of the desk lamp after 30cm also falls back to the environmental value
Judge J: The radiation generated by household appliances belongs to long-wave radiation, and the frequency is low. Such radiation will be quickly weakened in the daily space and will generally not cause any harm to the human body. Therefore, the judgment that the desk lamp “the king of radiation†is not established . In the future, if you want to avoid radiation during the use of a table lamp, you can maintain a distance of about 20 cm from the table lamp. Also, do not turn it on or off when using the lamp.
Convicted four: wireless router radiation is harmful to the human body.
Wireless Router
Wireless router: In fact, I'm not easy, for the majority of users of mobile devices to the Internet, hard work to build bridges, who do not know who is also accused by users of my radiation will affect the development of the fetus, also said that my radiation It will hurt the fertility function of males. What's more, Mrs. Lao Wang next door is pregnant, and she even asked me to stop working because of the influence of radiation on the fetus. Who can return to me this power up to 10W appliances innocent!
The radiation value measured by the wireless router
Defense expert: The wifi electromagnetic radiation value decreases with distance and becomes weak. If the distance exceeds 1 meter, it stabilizes at a weak strength below 1 unit. If you can accept the radiation of the mobile phone, then the effect of the wifi product on your health is not enough. Therefore, the wireless router's radiation is very small, and its radiation intensity is within a human body's acceptable range and is relatively safe.
The radiation value of the wireless route is reduced to approximately the environmental value after 5cm.
Judge J: The radiation of the wireless router is extremely low, far below the maximum limit specified by the national standard, and gradually weakens as the range becomes larger. The radiation value of 1 meter or even outside the partition wall is negligible. Therefore, the wireless router is not convicted . However, it is advisable to place the wireless router at a distance of 1 meter from the bedside. When not in use, turn off the power as much as possible.
Next, let's take a look at the electromagnetic radiation trials of the above home appliances:
(V/m) Whether safe use distance can be used safely Description Hair dryer 15.8 15cm is only 15cm for users
Distance to achieve safety value microwave oven 52.6 1 meter is recommended to use microwave oven to maintain a distance of about 1 meter from the moment the lamp up to 200 30cm
After 1 second return to normal value wireless router 5.8 1 meter is wifi with the user as long as the
1 meter or so to achieve safety
Summary: With respect to radiation, people always report a fearful heart. Therefore, for some electrical appliances that are related to radiation, people's inner concerns are unconsciously magnified and kept away from it. People are afraid of electrical radiation hazards. It also shows that everyone is paying great attention to protecting the health of themselves and their family and friends. Today's home appliance interrogation room is intended to eliminate misunderstandings and panic of radiation from some people. In fact, as long as it is a qualified product produced by a manufacturer, basically radiation will still be at a relatively safe level, so we do not have to worry too much about the radiation caused by home appliances. I hope that everyone will rationally deal with the problem of radiation in household appliances in the future, and do not listen to hearsay. All things must have a critical spirit and a practical spirit.
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