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高温不仅考验电梯 更考验维保人员

时间:2019-07-15 08:43来源:新电梯中国 作者:赵风年
   新电梯中国网讯(微信号:新电梯、新电梯网)

  7月以来,全国各地的温度一再飙升。以编者所在的地州,平均温度已经达到了35度以上,对于一些“老牌”高温地方如吐鲁番等地,平均温度已经超过45度,地表温度在70度以上。编者从网上搜集了一些关于吐鲁番高温的图片,可以感受一下。



 

 

  气温高,机房温度也高

  对于有机房电梯来说,机房往往设置在楼顶,受到阳光直接照射、其温度通常都比较高。编者的同事在检验电梯时,测量到电梯门的温度高达40多度。


  按照电梯安全技术规范TSG T7001-2009的规定,如果电梯机房温度超过40度,就可认定不具备检验条件。这主要是因为,如果机房温度过高,会对电梯元件造成影响、不利于电梯安全运行。

  高温对电梯元件的影响

  高温几乎对所有的电梯元件都有不利的影响。以曳引机为例,曳引机作为动作最频繁之一的元件,本身就在不断产生热量。如果外界温度居高不下,会造成曳引机散热困难,内部线圈很容易过热。再以变频器为例,电梯元件中变频器对温度比较敏感,且其绝缘水平、寿命等受温度影响较大。

  此外,高温对导线也是一种考验。导线的载流量随着温度的升高不断下降,如果温度过高,会导致原本满足载流量的导线超负荷运行,极容易造成导线绝缘性能下降、加速导线老化甚至烧毁线路。

  高温对电梯维保的影响

  电梯维保,离不开打扫机房、清理轿顶、清洁元件。在燥热的高温下,人会不由自主的急躁,这可能造成维保不到位、维保缺项。同时,身体的不舒适可能会导致出错、不按照安全操作规程进行维保,可能对自身安全产生威胁。

  电梯故障不可避免,尤其在高温情况下。由于受到电梯救援时间的限制,电梯维保人员在接到救援任务后,往往会争分夺秒赶赴现场。如果受到高温影响,容易会产生急躁、易怒情绪,无论是对救援途中还是救援现场都有不利影响。

  自身安全,一刻也不能放松

  7月7日,临沂泰盛发生的电梯维保人员坠楼身亡事件还历历在目。

  编者认为,在目前电梯维保市场中,有许多不合理地方,比如维保价格、工作量、工作待遇、工作压力等。特别是在高温下工作,其工作环境比以往更加恶劣,也更容易产生急躁、放松警惕、懈怠的情绪,这些都是客观存在的困难。但是为了自身安全,千难万难也要时刻注意、处处留神。如果因为这些就让自己陷入危险,真的不值得。

  High Temperature Testing Elevator Equipment and Maintenance Workers

  The temperature has continuously raised since July through the whole country. And for elevators with a machine room, which are usually designed and placed on the top of the building, their machine rooms are more likely to be effected by the heat under the burning sun.

  If the temperature in the machine room is higher than 40℃, it could be recognized as un qualified, according to Elevator Safety Technical Regulation TSG T7001-2009.

  Heat could harm nearly all the parts and components of elevator equipment, and traction machine, transducer and conductors are all easily influenced by high temperature.

  Moreover, heat also effects elevator maintenance work.

  The maintenance work inevitably includes cleaning the machine room, the top of the elevator car, devices and kits. As human are vulnerable to heat and they are more easily getting impatient and even sick under hot weather, the maintenance work might not be completed as required. Some defaults in elevator maintenance and wrong conduction in the process could result in unexpected situation.

  However, the elevator malfunction is unavoidable especially under hot weather. As the rescuing time is limited, the maintenance workers would hurry to the site the moment they receive a report. And the hot weather would possibly make them irritatable or impatient on the way or even when they arrive.

  It’s still vivid in our mind that an elevator maintenance worker fell from the building an died on July, 7th, in Taisheng, Linyi.

  I have seen numerous improper situations in elevator maintenance market, such as the maintenance price, workload, work treatment and work pressure. The working environment will turn worse in hot weather, and workers are inclined to be impatient, sluggish and slackening their attention. In terms of safety, I would like to remind the workers to pay attention and take care during the whole working process. Try not to run into danger because of the heat, and it doesn’t worth a life to learn a lesson.

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