Outer plastic jacket This outer jacket works by shielding or protecting the heating cable against mechanical and moisture damage. It is, however, important to note that the plastic outer jacket is not present on all heating cables. Inner plastic insulation This acts as the main layer of insulation (electrical) between the outside and the live-current heater.  The heating cable also has bus wires which connect the heater to the power source. The conductive core This is where the real magic of self-heating occurs. The conductive core is made of a unique plastic material. This plastic is electrically insulating at high temperature and conductive at low temperatures. This property of the plastic leads to what is commonly referred to as the positive temperature coefficient or simply, the PTC element. This means that, as the temperature increases, so does the resistance of the heating cable.  To understand this better, consider the following equation:R= kT, where T is the temperature, k is a constant ratio, and R is the resistance. The actual process is a bit complex and this is a simple equation to show you the general idea. As electricity flows through the plastic material, some of it is absorbed by the resistive plastic, which turns it into heat. It works the same way as to how the tungsten coil absorbs electricity to produce light in an incandescent light bulb.

A Detailed Description About the Self-Regulating heating cable The main reason why the self-regulating heating cable is more advantageous than the standard heating cable is because it cannot get overheated enough to cause damage to itself. Self-regulating heating cable systems offer protection against frozen roof gutters, burst water pipes, snow-covered walkways, etc. Although very many people use this heating system in their homes, very few actually know how it works, and in this article, we will show you the magic behind the working of this heating cable as well as its main benefits. Self-regulating heating cable, also called Self Regulating heat trace, is designed in such a way that, as it gets hotter, it reduces the amount of electricity flowing in. Although the term self-regulating might seem to suggest that the heating cable will attain some given temperature and maintain it at that level, it is important to note that the heating cable only works by limiting the heat flow until at some point below a temperature that would potentially damage the heating cable. At this point, the heating cable prevents electricity from flowing through. The best way to describe this system would, therefore, be “self-limiting”. We will let you know how this heating cable work by focusing on the individual parts of this system and what they do.

During the occasion of the New Year in 2019, the HIF brand went to EUROPE, for participate in the 2019  AQUATHERM Exhibition. Although the staff wasfar away from home, the atmosphere of the Chinese Year was celebrated everywhere due to the gathering of Chinese merchants. 2019  AQUATHERM Exhibition, HIF Factory brought several new heat tracing products developed and produced by the company in recent years: intrinsicallysafe solar electric heating cable, safe and environmentally friendly electric heating belt with low resistance transition layer The heating cable with the plug leakageprotection, the electric heating mat, the pipe heating cable, etc., reflect well. Many foreign customers have great interest in the products we exhibit. Product consultation, reading of materials, and the collection of samples are endless. Among them, the electric heating net of the Star Warm brand has become a "starproduct." A welcoming Russian merchant erected a thumbs up after seeing the electric heating mat. At this international exhibition, HIF has returned and won the favor of international customers. For this reason, we will be more motivated to make our own products.

We will install the thermal insulation layer immediately, after construction test of heating cable, and pay attention to the following points: The material, thickness and specifications of the thermal insulation layer used are in accordance with the design drawings. The thermal insulation material must be dry during construction. Waterproof cover should be added outside of thermal insulation layer. Avoiding to damage the electric heating cable during construction of the insulation layer. The insulation test should be carried out immediately, after the thermal insulation layer construction. Adding a warning label on the thermal insulation layer to indicate 'with electric heating cable inside' and indicate the location of all accessories.

The most important thing is the position of the thermostat, Flease refer to the following precautions: 1) .Installation site of thermostat sensor should be on the surface of the pipe, which will be tested, and the site should be with thelowest temperature. 2) .The sensor of explosion -proof thermostat should be kept away from the heating cable and heating element to avoid interference from them, and caused inaccurate detection temper ature. The sensor of explosion- proof thermostat only can be be installed horizontally and ver tically downwards, otherwise temperature will be instability.

Inspect the surface of the electric heating cable damaged or not. Inspect all accessories complete installation or not. Testing an end of each independent line with tramegger to ensure good insulati on per formance. Record the results of tramegger testing on insta1lation 1ist.

Project Introduction The project is located on Huangzeshan Island, Qushan Town, Daishan County, Zhoushan City, Zhejiang Province, with a total construction area of approximately 180000 square meters and a total tank capacity of 1.04 million cubic meters. It is a key project for the development and construction of the international oil storage and transportation base in the Zhejiang Free Trade Zone. It is backed by the "artery" of the Yangshan International Waterway and can connect various regions of East China and the Yangtze River Basin, as well as major ports in coastal cities in China. It is recognized as a natural port for oil transfer and storage in the industry. After the completion of the project, it is of great significance to enhance the capacity of crude oil unloading and storage facilities from Ningbo to Zhoushan Port, promote the construction of the Zhoushan Islands New Area, improve the architecture of the Zhoushan oil shipping system, and enhance the international oil storage and transportation capacity of Zhoushan. The project is one of the important projects in promoting the construction of international oil and gas storage and transportation bases in Zhoushan City, Zhejiang Province, and is also the main oil storage project in the northern area of Zhoushan. The total investment of the project is 1.256 billion yuan, mainly constructing a total of 1.04 million cubic meters of crude oil and fuel tanks, including 6 100000 cubic meters of crude oil tanks, 6 50000 cubic meters, 2 40000 cubic meters, and 2 30000 cubic meters of oil tanks. Heat tracing device: crude dye oil, asphalt, and waste oil pipelines Crude oil is a complex mixture containing hydrocarbons and other chemical substances such as paraffin, cycloalkanes, asphaltenes, and resins. In the process of crude oil production and transportation, problems related to pipeline systems are mainly caused by high molecular weight paraffin and asphaltene. At high temperatures, paraffin molecules dissolve in crude oil. If transported through pipelines, the temperature of the crude oil drops below the wax precipitation point, which is higher than the flow point. The decrease in paraffin solubility causes paraffin molecules to precipitate and crystallize from the crude oil, thereby affecting pipeline flow. For this reason, we need to install insulation measures such as electric heat tracing to maintain the temperature required for crude oil pipeline transportation. Due to the different pipeline areas that require heat tracing in the second phase tank farm of the Huangzeshan Oil Transfer Storage and Transportation Project, our Anhui Huanrui technical personnel have selected corresponding electric heat tracing product models for different heat tracing pipelines. The series constant power RDC1Q-J3-20-220 and low-temperature enhanced DBR-25-220-PB are about 110000 meters of electric heat tracing, effectively solving the problem of crude oil precipitation and crystallization in the pipeline an...

Anhui Huanrui Heaing has fully resumed work on January 29, accepting orders from China and abroad. It has only been one week since the resumption of work, and orders for four containers have been issued. Now the company's production line is in full swing, and orders are hot. Customers who are interested in ordering heating cable ,heating mat or heating system accessories, please contact us in time. We will serve you wholeheartedly no matter before or after sales.