现在的电加热器其安全性虽然一直在不断提高，但对于我们来讲还时要非常注意电热管的安全使用。差不多现在生产的电热管其中的电热丝都是采用芯研磨设备，管径标准化程度高，密切配合设备装配，具有热效性高、散热快。正是由于这些先进的制作工艺才让现在生产的很多的电热管的质量更加稳定，提升了设备的使用安全性。

　　虽然现在市面上出售的电热管都是按按CE标准制造，能够满足大部分机器使用需求。但是我们还是应该注意对电热管的使用安全注意。一般对于电热管元件来讲，它的工作环境应该是空气相对湿度不大于95%，无爆炸性和腐蚀性气体。对其工作的电压应该不大于额定值的1.1倍，外壳应有效接地。绝缘电阻≥1MΩ 介电强度:2KV/1min。

　　还有一点需要特别注意。所使用的电热管应该固定位置。有效发热区必须全部浸入液体或金属固体内，严禁空烧。发现管体表面有水垢或结碳时，应及时清除干净再用，以免影晌散热而缩短使用寿命。

　　对于需要加热易熔金属或固态硝盐、碱、沥清、石腊等时，应先降低使用电压，待介质熔化后，才能升至额定电压。对于加热空气时元件应交叉均匀排列，使元件有良好的散热条件，使流过的空气能充分加热。

　　安全使用电热管对于一设备与机械都是非常重要的！电热管的安全使用不仅保证了机械的正常运转，也很好的保证了生产安全问题。

Now its security while the electric heating tube has been continuously improve, be very careful when it is for us the safe use of electric heating tube. Now almost in the production of electric heat pipe with electric SiDou is using core grinding equipment, pipe diameter high degree of standardization, work closely with equipment assembly, has high thermal effect, fast heat dissipation. It is because of these advanced production process to make production now a lot of electric heat pipe quality more stable, improve the use safety of the equipment.

Although now on the market to sell electric heat pipe are made according to CE standard, according to meet the demand of most machines use. But we should pay attention to the use of electric heating tube safety attention. Generally for electric heat pipe element, its working environment should be air relative humidity is not more than 95%, explosive and corrosive gas. For the work voltage should be not greater than 1.1 times that of the rating, shell should be effectively grounded. Insulation resistance 1 m or more Ω dielectric strength: 2 kv / 1 min.

It is also need to pay special attention to. The use of electric heat pipe should be fixed position. Effective heating area must be completely immersed in liquid or solid metal, it is strictly prohibited to empty it. Found a scale or carbon tube body surface, should be timely clean again, lest absence made the cooling and shorten service life.

Heating for fusible metal or solid nitrate, alkali, asphalt, paraffin, etc., should be used to reduce voltage, after being medium melt, can rise to the rated voltage. For heating air components should be uniform cross arranged, make the device has good heat dissipation conditions, make the air flow can be fully heated.

Safe use of electricity heat pipe for the equipment and machinery are very important! The safe use of electric heating tube not only ensures the normal operation of machinery, is also very good to ensure the production safety.

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