Mehoo electronics
In 1969, China's first subway was officially put into operation in Beijing. In just a few decades, China's subways have been developing rapidly, covering more than 40 cities. From solving congestion, to revitalizing the city's economic vitality, and even stimulating the national economy, urban subway construction is taking on more and more functions.

At the end of 2021, the Metro Line 14 opened in a super-large city in East China is full of technological highlights and oriental cultural charm. The entire line is about 38 kilometers long. , Fully automatic driverless line.
 

The successful opening of Line 14, which represents a high level of technology and a high level of transportation, may have a great reference and guiding role for the upgrading of the national subway system. Its high-volume operation puts forward higher safety and reliability of trains. The requirements of unmanned driving are more stringent on the stability of the signal system, which are inseparable from stable and efficient power connections.

TE Connectivity (hereinafter referred to as "TE") is very honored to participate in this project, providing the industry-proven TE Raychem heat shrinkable products for Line 14 to protect the stable power connection 365 days a day.

TE Raychem
10-35 kV APKJ heat shrink intermediate joint
The three-layer co-extruded heat-shrinkable tube realizes the prefabrication of the joint body, reduces the number of components, and achieves faster and simpler installation.

TE Raychem
10-35 kV APKT Heat Shrink Cable Terminations
Red tracking-resistant insulating tube provides excellent electrical insulation and weather resistance; moisture-proof sealing system formed by heat-shrinkable sealant effectively blocks ambient moisture.


The design of the underground operation of Line 14 has put forward higher requirements for moisture and mildew resistance, so the waterproof performance of the product must be excellent.

TE's Raychem APKJ heat shrink intermediate joint products for underground laying have passed multiple 3-meter water depth tests. Different from the 1-meter test under ordinary water, the 3-meter test has higher requirements on waterproof performance due to higher water pressure. During the test, TE also increased the difficulty. After the outer sheath of the cable was opened to allow water to penetrate into the outer sheath of the cable, the waterproof sealing of the product was tested again, and it still passed smoothly.

TE is well aware of the needs of subway construction and operation, and is committed to becoming a reliable partner of urban rail transit, providing a complete range of high-performance power connection products and solutions with reliable performance for infrastructure and rail vehicles, minimizing subsequent failures. possible. Professional and quick-response services can effectively deal with various emergencies in subsequent subway operations, while on-site professional supervision and customized training tools provide customers with more cooperation value.