The Shanghai Municipal Bureau of Quality Supervision announced the results of the risk monitoring of the “human radiation safety” special indicator for various types of energy-saving lamp products sold in the city. The results were announced on the morning of March 29: The electromagnetic radiation generated by these energy-saving lamp products under working conditions was In accordance with the requirements of the IEC (International Electrotechnical Commission) standards for induced current density, citizens do not have to worry about this.

Conclusion Risk monitoring shows the safety of energy-saving lamps electromagnetic radiation

In the middle of this month, the Shanghai Bureau of Quality Supervision conducted risk monitoring on the special indicators of "human radiation safety" for all types of energy-saving lamp products sold in the city. All 87 samples were purchased from the large-scale integrated supermarkets, large-scale professional lighting markets and specialty stores in the city and basically covered domestic and international famous brand products produced by local enterprises and some foreign enterprises. The monitoring results showed that these energy-saving lamps The electromagnetic radiation generated by the product under working conditions complies with the requirements of the IEC (International Electrotechnical Commission) standard for the induced current density. The expert emphasizes that when the product meets the requirements of the electromagnetic compatibility standard at the same time, under the “normal use conditions”, the product It can be used with confidence and citizens do not have to worry about it.

The risk monitoring was conducted by the National Electric Light Source Quality Inspection Center (Shanghai) and the Shanghai Lighting Product Quality Inspection Station in accordance with the international standard IEC62493:2009 “Evaluation of Human Electromagnetic Radiation by Lighting Equipment”. The test results showed that 87 samples were irradiated to the human body. Values ​​are below the international standard limits.

In addition, the national standard GB17743-2007 “Restriction and measurement methods for radio disturbance characteristics of electric lighting and similar equipment” is equivalent to the national standard that adopts international standards. The state and Shanghai have included energy-saving lamp products in key supervision and spot checks in recent years. The results of the supervision and spot checks were publicized to the society. From the result of spot checks and the monitoring of the risk in the past years, the main energy-saving lamp products sold in this Municipality basically meet the requirements of the standards.

Before the release of doubt, the test standard does not apply to energy-saving lamps

In previous media reports, there were institutions that demonstrated the trial process. The tests at that time showed that nearly ten different brands of energy-saving lamps will alarm immediately when the measuring instrument is close to the energy-saving lamp under working conditions. The electric field intensity within 10 cm exceeds 200 V/m, and OSRAM energy-saving lamp radiation. It was more than 1,600 V/m; when it was 1.5 meters away from the energy-saving lamp, the value dropped to a dozen volts/meter all at once. The whole process did not exceed 3 minutes. It cited the current national standard GB8702-1988 "Electromagnetic radiation protection. Provisions of the "Public Exposure Derivative Limit within 40 Volts/Meter".

The “Protection of Electromagnetic Radiation Protection” mentioned above was organized by the Radiation Environmental Management Department of the State Environmental Protection Agency at that time in 1988. This standard proposes an electric field strength limit for the environment including 40 V/m.

This risk monitoring organized by the quality supervision department is based on the international standard IEC62493:2009 “Evaluation of Electromagnetic Radiation from Lighting Equipment to Human Body” by the International Agency for Non-Ionizing Radiation Protection (ICNIRP). The limits of biological effects and human exposure to radiation fields give acceptable radiation limits and test methods for radiation limits.

Experts participating in this risk assessment believe that GB8702-1988 standard does not apply to energy-saving lamp products. First of all, this standard stipulates that the applicable frequency range of the current is 100 kHz - 300 GHz, and the frequency of the energy-saving lamp operating current is in the range of 30. Between kHz and 50 kHz, obviously not applicable.

Second, this standard does not specify the method of detection. Earlier reports in the media reported that the measurement of the electric field strength of 200 volts/meter to 380 volts/meter was performed using a test method that did not conform to the premise of “under normal use conditions” emphasized by the IEC standard. Close to the radiation source, the test distance is only 0-10 cm.

The uproar of electromagnetic radiation in energy-saving lamps has also attracted the attention of experts in the lighting industry. Experts believe that this situation has clearly deviated from the original features of energy-saving lamp radiation. According to Yu Anqi, director of the Shanghai Illuminating Engineering Association, there is currently only one international standard for the protection of electromagnetic radiation on human bodies, namely IEC62493:2009 "Evaluation of Electromagnetic Radiation from Lighting Equipment" and GB8702-1988 "Electromagnetic Radiation Protection. The Regulations now seem to have a lot of content that is obviously outdated by current technological standards, and there are also many judgments about the impact of energy-saving lamp radio radiation on human injury.

Yu Anqi believes that the harm caused by different frequencies to the human body is different. Therefore, there is a “weighted network” for each frequency segment, so that the final evaluation result is in line with the actual situation. According to the test personnel, "according to the IEC standard procedures, the detection process of the electromagnetic radiation of energy-saving lamps generally takes 45 minutes."