According to the regulations of electric power industry safety and the actual needs of electric power production, electric power production staff must wear safety helmets when they enter the production inspection and installation construction, high voltage area (room) of substation, capital construction site, repair workshop and other high-altitude work sites, which is an important measure to ensure the personal safety of production staff. However, many safety helmets used on site have potential safety hazards, and there are many safety problems in the process of use, which must be faced squarely
1 safety helmet itself has quality problems
some safety helmets have some quality problems, such as poor impact resistance and puncture resistance, poor sweat absorption and air permeability of cap hoop, and parts made of metal materials. 1n practical use, we should choose high-quality famous brand products that meet the national standard and pass 1SO quality system certification and compulsory product certification
2 the phenomenon of safety helmet as helmet and stool is more common when the production staff ride a motor vehicle to the work site. Because they have to wear safety helmet when they enter the production site, some people think it is “troublesome” to wear safety helmet on the way to the site, so they use safety helmet as helmet. Because the main function of safety helmet is to prevent high-altitude objects from falling and injuring people’s head, and the helmet is used to prevent cyclists from being hit and falling and causing head injury, the protection emphasis of the two is different, and the functions are different, so it is not appropriate to replace the helmet with safety helmet
there are a few people at the production site who like to sit on the safety helmet as a stool. 1f they don’t pay attention to it, they may “sit” in violation of regulations, hidden dangers or accidents. When you enter the production site, you have to wear a safety helmet. 1f you take off the safety helmet at will, it will constitute illegal behavior. 1f you use it as a stool, it will scratch the brim and top of the hat, crush the hat lining, and cause damage to the safety helmet or reduce its service life
3 the normal service life of “not broken” safety helmet i2.5 years, but it is quite common that safety helmet is used beyond the period, and some safety supervision staff turn a blind eye to it. There is a safety helmet in a unit that has been used for nearly 10 years. Because of its “new” appearance and no “bad” appearance, it is still in use. 1n fact, even if the safety helmet is not used, it will age after a long time. 1f it is not replaced in time, once danger occurs in the process of use, the consequences will be unimaginable
4 improper storage
the combined temperature of safety helmet is – 10 ℃ to + 50 ℃. 1t should be placed in a ventilated and dry place, and avoid contact with fire (heat) source and corrosive substances, so as not to affect its normal service life. The inventory period of safety helmet should be shortened as far as possible, and it is better to use it as soon as you buy it; Purchase the products with short delivery time, so as not to affect the actual effective use time due to long inventory time
5 can not be used accurately
the main problems are: no belt (or the belt is not tightly under the chin), no core, not adjusting the length of the cap hoop according to the size of the head, not replacing the cap shell and the cap liner according to the original specification after scratch or damage, etc
6 lack of necessary inspection before use
routine inspection of the following items should be carried out before use: no damage, no crack, no significant deformation of the cap shell; The cap liner is not damaged; The cap hoop is intact and firmly connected with the cap shell; No erosion, no scar, complete and effective buckle; 1n case of severe impact, it should be scrapped immediately and should not be reused
7 mixed wearing causes chaos in governance
some staff use safety helmets as public safety equipment, and they just take one when they want to use it. This kind of mixed wearing phenomenon causes chaos in governance. Over a long period of time, the original data such as the date of manufacture of safety helmets have been lost. Whether they are out of date or not makes us very interested. We can only judge by subjective experience, and we are not willing to wear dirty helmets in departments. Therefore, the same number should be given to the safety helmet according to the division, the number and the staff should be assigned, the color should be separated according to the nature of the work, and the corresponding account should be established
8 can not accurately treat the proximity alarm function of safety helmet
some safety helmets are equipped with proximity alarm, which will send alarm signal when they are close to high voltage equipment within a certain range. The installation of an alarm only adds a control measure, which can not reduce the implementation of technical measures such as power test to ensure safety. Because the alarm may not alarm when the voltage is low (such as 380 V), not to mention that some near electric alarms are not reliable. Of course, if the proximity alarm (including similar proximity alarm wristwatch, etc.) sounds when approaching the equipment, it should be considered that the equipment has dangerous voltage
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