Korea EHT introduced MI (mineral insulated) heating cable for the first time in Korea in 1989. For the process of welding the connection between cold lead part, special technology from the expert company is required Because of the series heating method, available usage length must be considered while deciding the model. It also has high heat resistance(800℃).Ĥ.Ělthough it has various advantages, it needs sophisticated design. ![]() Because it has seamless form which does not have the joints, its durability is the best among all heating cable products. GF Urecon has been supplying North American solutions and expertise in LOGSTOR EN 253 hot water piping for over 25 years in rigid STEEL and flexible PEX. Recently the outer sheath is produced with drawing method rather than welding method. GF Urecon combines full heat tracing and factory insulated design and supply from a single source to provide freeze prevention and temperature maintenance solutions with a system warranty. According to the maximum voltage, it is categorized as 300V, 600V, and 750V rating type. And it’s sheathed with metallic materials.Īccording to the sheath materials, there are Inconel type, Alloy825 type, Stainless Steel 316 type, Coupro nickel type, and Copper Sheath type. The heating element of one (or two) strands are insulated with Magnesium Oxide Powder that has 2600℃ heat resistance character. Its maximum exposure temperature is 260℃. And according to the heating value, there are models of 5, 10, 15, 20 watts/feet (16, 33, 49, 66 watts/meter). As a result, it has the character of PTC (Positive Temperature Coefficient) that increases the resistance and reduces the output as the temperature increases. And its structure leads to the increase of the heating element’s length in each circuit. On site, it reduces the possibility of circuit damage by bending the cable. In this structure, the glass yarn supports the heating elements. It has the advantages of constant wattage heating cable and strengthens the disadvantages. 1 meter forms one zone, and parallel electric circuits are made. But instead of winding the bare Nichrome heating element itself, glass yarn is winded by Nichrome heating cable first, and they together winds the conductor. Build and Save Your Project Designs with Nelson. ![]() ![]() Its structure is similar to the constant wattage heating cable. Nelson products are backed by more than 50 years of experience designing and delivering solutions to best meet the needs of each customer and application, whether it be preventing the spread of fire in close quarters, or maintaining pipe temperature in harsh climates.
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