How harmful is the electromagnetic radiation of energy-saving lamps?
Some netizens found after testing energy-saving lamps that they emit electromagnetic radiation when turned on. With the rapid follow-up of public opinion, the news of the amazing electromagnetic radiation around energy-saving lamps spread rapidly, causing a lot of social shock, and Osram and other brands of energy-saving lamps also fell into the cusp of public opinion. So, is the electromagnetic radiation of energy-saving lamps harmful? How dangerous is it? How should the public be protected to be safe?
According to the test at that time, nearly ten different brands of energy-saving lamps will sound an alarm when detected with a professional measuring instrument, and the electromagnetic radiation within 10 cm exceeds 200 volts/meter. The radiation reaches more than 1,600 volts/meter; when the measuring instrument is 1.5 meters away from the energy-saving lamps, the value suddenly drops to more than ten volts/meter. The test is based on the current national “Electromagnetic Radiation Protection Regulations”. The value should be within 40 volts/meter. So, is such a test scientific?
On March 26, the reporter learned from Shanghai Quality Supervision Bureau, how harmful is the electromagnetic radiation of energy-saving lamps? On March 20, the Shanghai Bureau quickly conducted a special risk assessment test for “human radiation safety” on various energy-saving lamp products on sale in the city. The tested products were purchased from the city’s large-scale comprehensive shopping malls, supermarkets, large-scale professional lighting markets and professional stores. All 87 samples basically covered domestic/international well-known brand products produced by enterprises in the city and those in other places, such as GE, PHILIPS, OSRAM, Panasonic , TESCO, “Asian” characters, OPPLE, Sunshine, NVC Lighting, Shellette, FSL, etc.
After testing, the radiation levels of the 87 samples to the human body were all within the F factor limit of 0.85 specified in the standard, and no excess was found.
GB 8702-1988 “Electromagnetic Radiation Protection Regulations” used in media reports was compiled by the then State Environmental Protection Administration’s Radiation Environment Management Division in 1988. The electric field strength limit for the environment, including m.
The risk assessment test believes that energy-saving lamps (standard name: self-ballasted fluorescent lamps) are a type of lighting equipment. The most scientific standard for evaluation IEC62493:2009 “Evaluation of Human Electromagnetic Radiation by Lighting Equipment”, which is based on the limits of biological effects and human exposure to radiation fields confirmed by the International Commission on Non-Ionizing Radiation Protection (ICNIRP) Accepted radiation limits and test methods for radiation limits.
GB 8702-1988 standard does not apply to energy-saving lamps, first of all, the current applicable frequency range specified by GB 8702-1988 standard is 100kHz-300GHz, while the frequency range of energy-saving lamp operating current is between 30kHz-50kHz. time, the standard does not apply.
Secondly, the test method used does not conform to the IEC standard and actual usage. When the electric field strength of 200V/m to 380V/m was measured in the media reports, the measuring probe was close to the energy-saving lamp, and the test distance was 0-10cm, which was inconsistent with the actual distance between the human body and the energy-saving lamp. The international standard IEC 62493:2009 “Evaluation of Human Electromagnetic Radiation by Lighting Equipment” specifies the measurement distance. GB 8702-1988 “Electromagnetic Radiation Protection Regulations” does not specify the measurement method, while the international standard IEC 62493:2009 specifies specific test methods and test instruments for detection. 1 `. h8 i2 R2 |! E
Electromagnetic radiation of energy-saving lamps is very harmful? It also attracted the attention of Yu Anqi, chairman of the Shanghai Lighting Society, and experts in the lighting industry. Experts believe that this situation has clearly deviated from the true face of the radiation of energy-saving lamps. According to Yu Anqi, the current international standard is IEC 62493:2009 “Evaluation of Human Electromagnetic Radiation by Lighting Equipment”, the current international standard is IEC 62493. GB 8702-1988 “Electromagnetic Radiation Protection Regulations”, now see that many of the content is obviously outdated by the current scientific and technological standards, and there are many judgments that do not apply to the impact of energy-saving lamp radio radiation on human body damage.
Yu Anqi believes that in terms of the harm of radio radiation to the human body, the harm to the human body is different because of different frequencies, so there is a “weighted network” for each frequency band, so that the final evaluation result is in line with the actual situation. What we are seeing now is that there is neither a qualified measurement environment nor a necessary standard addition network, and the applicability of the standard is wrong. The measurement results are not scientific at all.
Experts further explained that the operating frequency of energy-saving lamps is generally 30 kHz to 50 kHz, and may reach 100 kHz when the light is turned on, that is, 30,000 Hz to 50,000 Hz. 100,000 Hz at startup, but the frequency and the radio radiation intensity are two completely different quantities. High frequency does not mean that the radiation intensity is high. It is a great advantage to use the frequency (30kHz ~ 50kHz) to light the fluorescent tube instead of the 50Hz power frequency. And using high-frequency lighting, the luminous efficiency can be increased by 8% to 10% under the same power, so most countries in the world have accepted the way of driving fluorescent lamps with high-frequency current.
About the remarks made by relevant experts before, Yu Anqi believes that none of the “false” remarks on “energy-saving lamp radiation” are recognized experts in the field of lighting appliances.
Yu Anqi said that in terms of the radiation of the wireless current segment, the radiation of the mobile phone is much greater than that of the energy-saving lamp, and the mobile phone is closer to the human brain when it is in use, so it is not necessary for the energy-saving lamp. Radiation worries.
In fact, since 2008, the quality of energy-saving lamp products, the supervision and spot checks of governments at all levels (national and Shanghai) have increased the “Restrictions and Measurement Methods of Radio Disturbance Characteristics of Electric Lighting and Similar Equipment” For the testing and judgment required by the standard, as long as the products comply with the standard CB 17743-2007 “Restrictions and Measurement Methods of Radio Disturbance Characteristics of Electric Lighting and Similar Equipment”, the product quality is in line with the requirements.
The risk test of Shanghai Municipal Bureau of Quality Supervision also proves this point. From the results, the main energy-saving lamp products sold in Shanghai, the power of energy-saving lamps from 4W to 48W, basically covers the current household energy saving of citizens The power range of the lamp is in line with the safety requirements for human radiation.
