Case study of self-regulating heaters: Snow accumulation and snow slide prevention on bridges (Ooyagawa Bridge)
Eliminate snow slide risks with the introduction of the self-regulating heater EM2-R!
We installed self-regulating heaters to prevent snow accumulation on the Oya River Bridge adjacent to the Yabu IC of the Northern Kinki Toyooka Expressway. The arch bridge, located in a snowfall area, has experienced instances where snow accumulated on the left and right arch ribs fell and damaged vehicles passing underneath, which has been a concern. The focus was not on completely melting the snow on the bridge but rather on preventing the accumulated snow from falling onto the roadway and making it less likely to accumulate again after it has been removed. Before the installation, snow removal was done manually using a high-altitude work vehicle, but after the installation, the bridge became a safe structure with no concerns about falling snow even in winter. ■ Benefits of Introducing Self-Regulating Heaters - There is no risk of abnormal overheating or burnout without using a thermostat. - Reliable and safe electric heating and insulation can be achieved. - Due to its continuous parallel circuit structure, it can be cut to the required length on-site for use. *For more details, please download the materials from the PDF download button or feel free to contact us.
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【Use of Heater (Excerpt)】 EM2-R →Standard Output: 76W/m →Operating Voltage: 200Vac →Minimum Installation Temperature: -1℃ →Minimum Bending Radius: 50mm *For more details, please download the materials from the PDF download button or feel free to contact us.
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Yabu City, Hyogo Prefecture, Ministry of Land, Infrastructure, Transport and Tourism - Oya River Bridge (Nielsen-Roosevelt Girder Bridge) *For more details, please download the materials from the PDF download button or feel free to contact us.
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Company information
Our company is an engineering firm specializing in electric heaters. We started by handling Raychem self-regulating heaters for preventing water pipe freezing. Since then, we have accumulated technology and have undertaken numerous projects from design to construction for fields requiring strict temperature control, such as petrochemicals, food factories, and the power generation industry, including process insulation for piping and tanks. In addition to self-regulating electric heaters with a maximum holding temperature of 150°C, we also handle higher temperature power-limited heaters, MI heaters, and sheath heaters. Currently, the mainstream for process insulation in manufacturing sites is steam or hot water, which consumes large amounts of fossil fuels. However, due to environmental issues and unstable energy costs, there is an increasing number of manufacturing professionals focusing on electric heating.
