阴极保护系统维护中的安全防护
人的生命只有一次,所有工作开始前,都要对安全进行评估,对风险进行识别。做到不安全的环境绝不开始工作,确实做到三思而后行。
一、人身防护
要穿戴适合的劳动保护服装、佩戴眼镜等,做好人身安全防护。工作张弛有度,保证饮食、营地环境卫生。夏天防止高温中暑,冬天防止寒冷冻害。
二、乘车安全
阴极保护维护过程中,大量时间花在路上,乘车要遵守交通规则,系好安全带。严禁酒后驾车,**速行车。乘车人中,职位较高或岁数较大的人对行车安全负责。
三、用电安全
设备上的开关关闭并不代表不带电。需要进行设备内部检查设备 一定要断掉总电源,并做到挂牌锁,标签上应往用断电原因、断电人姓名以及联系大式。只有挂锁人才有资格去掉挂锁,开启电源。维修电气设备人员要有相应的资质。
四、防爆区工作安全
在站场内部工作时,要遵守站场防火防爆的规定,打开接线箱前,要确认没有可燃气体或已经断电。
五、**动物的伤害
在野外工作时,要注意蛇、虫、马蜂等动物的侵害,高山密林中要配备通信设备,长途跋涉时要携带充足的食物和水,必要时,双车出行。
六、高压线下方及沟下作业
野外测量管地电位时,尤其当上方有高压线时,要先放置参比电极,后与管道连接。先测量交流电压,再读直流电位。尽量采用单手操作。沟下作业时,要预留逃生通道,防止洪水浸泡。
Safety protection in cathodic protection system maintenance
Human life is only one time. Before all work is started, safety shall be assessed and risks shall be identified. Never start work in an unsafe environment, and really think twice before acting.
1、 Personal protection
Wear appropriate labor protection clothing and glasses, and do a good job in personal safety protection. Work in a relaxed manner to ensure food and environmental hygiene in the camp. Prevent high temperature and heatstroke in summer and cold and freezing damage in winter.
2、 Ride safety
During cathodic protection maintenance, a lot of time is spent on the road. When riding, you should abide by traffic rules and fasten your seat belt. Drunk driving and speeding are strictly prohibited. Among the passengers, the person with the highest position or the oldest age is responsible for driving safety.
3、 Electricity safety
The switch on the equipment is closed, which does not mean that it is not electrified. For the equipment requiring internal inspection, the main power supply must be cut off, and the tag must be locked. The reason for the power failure, the name of the person who cut off the power and the contact form should be on the tag. Only the padlock is qualified to remove the padlock and turn on the power. The maintenance personnel of electrical equipment shall have corresponding qualifications.
4、 Work safety in explosion-proof area
When working in the station, observe the regulations on fire and explosion prevention in the station. Before opening the junction box, make sure there is no combustible gas or the power has been cut off.
5、 Damage to wildlife
When working in the field, pay attention to the harm of snakes, insects, wasps and other animals. Communication equipment should be equipped in high mountains and dense forests. Sufficient food and water should be taken with you when you travel long distances. If necessary, you can travel in two cars.
6、 Operation under high voltage line and trench
When measuring the pipe ground potential in the field, especially when there is a high-voltage line above, the reference electrode should be placed first and then connected to the pipe. Measure the AC voltage before reading the DC potential. Try to use one hand operation. When working under the ditch, an escape route shall be reserved to prevent flooding.
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对比牺牲阳极法与外加电流法这两种,其中牺牲阳极法的一次性投资较大,运行维护工作量小。而外加电流法的一次性投资较小,运行维护工作量较大,运行时需要用电,后期投入较大。这两种系统对比有以下不同之处,先来说一下牺牲阳极系统的特点吧:1.由于输出的电流有效,只用于覆盖层良好的结构或者局部性保护;2.安装比较简单;3.不需要连接电源;4.要用许多的阳极;5.要用手提式仪表对每个阳极或者是相邻两阶的阳极之间进
阴极保护系统电缆的区分 Differentiation of cathodic protection system cables
阴极保护系统电缆的区分恒电位仪面板有四根电缆线,正极连接阳极地床,负极连接被保护结构,零位接阴连接被保护结构,参比电极连接埋地参比电极,可以通过测量两两电缆之间的电阻把阴极电缆线和零位接阴线与其他电缆线区分开。剩余的两根电缆线,可以用万用表黑表笔连接其中一根线,红表笔连接零位接阴线, 如果读数为-0.6Vᴄse左右, 则黑表笔连接的是参比电极, 剩余的一根电缆线为阳极电缆线,根据阳极材料以及填包方
电厂接地网阴极保护牺牲阳极保护措施防腐 一、接地网的组成 接地网是维护电力系统安全可靠运行、**运行人员安全的重要措施,其较重要的功能就是将故障电流安全地引入地下,限制故障电位上升,控制地表电位梯度以限制跨步电势和接触电势在安全值内。 发电厂的接地网是由若干接地井和相互连通的扁钢组成,遍布各个厂房和室外配电装置的地下,确保接地良好,即使在部分接地扁钢锈断的情况下,也可以使接地电阻保持在规范之内。
参比电极电位为了对各种金属的电极电位进行比较,必须有一个公共的参比电极。饱和硫酸铜参比电极,因其电极电位具有良好的重复性和稳定性,构造简单,在阴极保护领域中得到广泛采用。(1)对参比电极的要求①参比电极的电位应具有重复性,较化小、稳定性好、寿命长②不容易被污染,不污染被测量环境。③电位波动小于10mV。④实验室中,采用氢电极电位作为零电位,由于它制作、维护困难,工程上很少采用。陆上工程大多采用硫酸
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预包装高硅铸铁阳极 浅埋式阳极地床 外加电流 阴极保护深井阳极
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