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Located in the world’s highest plateau, the Qinghai-Tibet Plateau, is the famous city of sunshine – Lhasa. The Gongga International Airport in Lhasa has become one of the highest and largest airports in the world. 

An expansion project at Lhasa Gonggar International Airport was established in 2016 and in August 2021, the expanded T3 Terminal was officially put into operation. The terminal has an area of 88,000 square meters and features 20 boarding gates, accommodating a larger passenger throughput. 

However, the low temperature, large temperature difference between day and night, cold and dry winter and spring, and windy environment pose huge challenges to uninterrupted operations. 

Fortunately, in the roof and gutters of Terminal 3 is a RAYCHEM Roof and Gutter De-icing System quietly playing a crucial role. 

nVent RAYCHEM Smart IceStop Self-Regulating Heating Cable 

The nVent RAYCHEM IceStop Roof and Gutter De-icing System is an ideal solution for buildings in cold climates. It is designed to effectively prevent the blockage of drainage pipework caused by the re-freezing of melted snow in roofs and gutters. However, the geographical location of Lhasa Gongga International Airport posed an additional challenge – high altitude.  

Considering the intense sunlight, challenging repair and the high maintenance needed, the heating solution is required to have exceptional stability, minimum maintenance needs and a long service life. To address this challenge, nVent RAYCHEM GM-2X self-regulating heating cables with UV resistance were used. 

GM-2X Self-Regulating Heating Cables for Roof and Gutter De-Icing

The nVent RAYCHEM GM-2X self-regulating heating cable is UL Listed and FM Approved, demonstrating full compliance with the standard requirements set by international certification authorities for outdoor ice-melt heating cables. It is an ideal choice for roofs and gutters to melt snow and eliminate ice and can work safely and reliably after extended exposure to sunlight. 

In addition, the nVent RAYCHEM team has provided a complete solution tailored for Terminal 3 at Lhasa Gongga International Airport by integrating controllers, thermostats and other featured products. 

An nVent RAYCHEM IceStop Roof and Gutter De-icing System boasts the following advantages: 

  • It can build a heat analysis evaluation model for the de-icing system by collecting historical meteorological data; the model can then serve as a basis for adjusting the power of the de-icing system. 
  • It can collect temperature, humidity, snowfall and other data by using temperature sensors, humidity sensors and video monitoring equipment.
  • It can regulate the heating power in a smart manner to effectively melt the ice and snow in the gutter while reducing power consumption. 

Since its opening, Terminal 3 at Lhasa Gongga International Airport has substantially increased transportation capacity, further enhancing its role as an important and comprehensive transportation hub. 

Learn more about nVent RAYCHEM products today at our website.