Flextronics Product Center
Yancheng Flextronics Electric Heating Equipment Technology Co., Ltd. Contact: Mr. Jiang Tel: 0515-83063266
Address: Chaoyang Road, Yifeng Industrial Park, Dazonghu Town, Yandu District, Yancheng City, Jiangsu Province Post Code: 224000
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- Method to judge the quality of electric heating pipe
- 9/19/2017 Views: 
- When a heating element with a wide range of uses and good cost performance is used, how do customers check the quality of electric heating tubes when they order them? The main confirmed parameters are: the resistance value of the electric heating pipe and the insulation resistance value of the electric heating wire. Yancheng Shuangyi Company, which has more than 20 years of production experience in producing electric heating pipes, will introduce some simple methods to judge the quality of electric heating pipes.The main methods are:1. Use a multimeter resistance file (R * 1 or R * 10 file) to measure the lead wires or lead rods of the electric heating tube. There are two wires or lead rods in the single-phase or two-phase. Use the multimeter red and black test leads to test the lead wires. The resistance value R indicates that the value is within the range (R = U * U / P, U is the voltage value of the electric heating tube, and P is the power value of the electric heating tube), which means that the electric heating wire of the electric heating tube is not short-circuited.2. Then use a megohmmeter (also called a shaking meter, insulation resistance meter) to measure the insulation resistance value of the lead-out wire of the heating pipe or the rod and the pipe of the heating pipe (the ground wire of the heating pipe is connected to the pipe of the heating pipe), such as The larger the value indicated by the megohmmeter, the better, indicating that the electric heating pipe is well insulated, but the value of **** must not be less than 2M ohms, otherwise the leakage protection switch will trip and fail to work during use.3. Check that the lead-out power cord is not damaged and the junction box is well sealed.Generally, the above three methods can be used to judge whether the electric heating tube is good and can be used normally. It is a simple method for customers to measure.Purchase should also pay attention to the non-corrosive effect of the material of the electric heating tube. The electric heating tube has been used for a long time. If thick pipe scale and oil scale are collected on the surface, it should be removed regularly, otherwise the heat transfer performance of the electric heating pipe will be reduced and the surface heat load will be caused Damage beyond the allowable rating. The electric heating tube should be stored in a dry warehouse. If the surface is wet due to long-term storage, the insulation resistance should be measured using a megohm meter. If it is less than 1 megohm / 500 volts, the electric heating tube should be placed in a 200 degree drying box for drying.In the end, the customer should read the relevant instructions before installing the electric heating pipe to avoid damage.