Electric heating cable system installation and maintenance precautions
Source of information: Anhui Cable Group Co. , Ltd.Browsing times: 489 Release time: 2019-06-10
In the process of use, often due to improper installation or maintenance of the electric heat tracing system, unnecessary product damage or life degradation is caused. Today we bring to you the matters needing attention in the installation and maintenance of the heat tracing system.
Installation and maintenance of electric heat tracing system
① Installation precautions of electric heating cable system Due to the low temperature in winter, the anti-freezing and heat insulation of pipeline equipment are all laid with electric heating cable system for the purpose of anti-freezing and heat insulation. Electric heating products are divided into self-limiting temperature and electric heating cable and There are two types of constant power electric heating cables, which are used for insulation and freezing protection of pipelines in different occasions.
The self-limiting electric heating cable has the PTC temperature resistance characteristics, which can be cut at will and can be used overlappingly. It is not necessary to calculate the installation ratio when it is tiled during installation, and it can be laid at will when it is wound, as long as the medium in the pipeline is normal. Just run, simple and safe.
The constant power electric heating cable is a parallel-type constant temperature electric heating cable. A dedicated temperature controller for electric heat tracing is required for comprehensive control. When installing an electric heat tracing system, first consider the length of the pipeline. The ratio of the electric heat tracing to the pipeline is 1.2 during installation. : 1, this proportion of laying method is suitable for winding, and can use 95% of the heat of the heating cable to prevent freezing of the pipeline.
The minimum installation distance of the heat tracing of the electric heating pipe is designed for winding installation, and the minimum installation distance does not need to be considered when the electric heat tracing is tiled. When the electric heat tracing system is tiled on the pipe, it is not necessary to consider The problem of installation and laying can be used safely because it does not cause uneven heat tracing or other problems.
Electric heat tracing products are electrical insulation products. The minimum laying distance should be about 5 cm when laying, and heating cables below 5 cm will be densely laid. This will not only serve the purpose of antifreeze insulation, but also may cause The electric heating cable is too dense and burns out, so it needs to be performed according to the instructions.
The electric heat tracing products purchased by users at regular electric heat tracing manufacturers have strict installation conditions. If the manufacturer does not give the corresponding installation instructions or installation methods, the quality of the electric heat tracing products needs to be considered, so caution must be taken.
Electric heat tracing installation and maintenance
② Maintenance precautions for electric heat tracing system
Now that the use of electric heating cables has become widespread, more places have begun to use electric heating cables to replace electric heating or steam heating. Therefore, this product appears to be more environmentally friendly, energy-saving, and more efficient. It is an absolutely good choice. However, many people will find that after long-term use, the product will have various problems. In fact, this is mainly because the daily maintenance work is not done well, let's introduce the main daily maintenance work of the electric heating cable.
First of all, you need to pay attention to the waterproofing of the electric heating cable. When the electric heat tracing is exposed, it is necessary to endure the external weather. For example, rain is the most troublesome, because it easily infiltrates and forms stagnant water on rainy days, causing certain damage to the internal system. Be sure to clean up in time. In addition, after clearing up the accumulated water, waterproof measures should be taken to protect the overall product safety.
Secondly, damaged internal parts need to be replaced regularly. Under long-term operation, internal parts will inevitably be damaged. If not replaced in time, in addition to consuming more energy and lowering work efficiency, it will also cause short circuits, which will cause more serious consequences. Therefore, in order to ensure safety, it is best to carry out internal parts inspection regularly and regularly to ensure that there are no potential problems.
Finally, the detection of electrical heating cables is indispensable. The so-called inspection work is to detect the insulation resistance. After strict and strict inspections, ensure that the operating range of the resistance is within a reasonable range, so as to ensure the basic safety of use. Of course, there is another continuity that needs to be tested to ensure that the product is continuously new and stable.
The daily maintenance work of the electric heating cable is not too much or complicated. It is just some simple inspections. The purpose is to ensure the safety of the product and extend the service life. At the same time, it is also to protect people's safety. There is no doubt that only by doing these daily tasks can we truly avoid all kinds of losses.
- Installation and commissioning of electrical heating cables
- Electric heating cable system installation and maintenance precautions
- Analyze the principle of self-limiting electric heating and tropical heating
- Matters needing attention in the installation process of electric heating cable