Wire and cable for railway passenger cars

1.1 Performance and application of special temperature-sensing stickers for railway passenger car wires and cables

SWX series special temperature-sensing stickers for railway passenger car wires and cables are produced in accordance with the standards of CHINA Railway Corporation TJ/CL442-2015 "Temporary technical conditions for temperature-sensing stickers for railway passenger car wires and cables". The temperature-sensing stickers have unique color-changing temperature display and digital display Function, self-adhesive, widely used in control cabinets (power distribution cabinets, electrical integrated control cabinets, air-conditioning control cabinets, power conversion boxes, lighting control boxes) of various types of air-conditioned passenger cars (including high-speed rail, bullet trains, and subways) , Circuit breakers, contactors, thermal relays, fuses, etc. and the connection parts of wires and cables are used to monitor the temperature of the connection parts.

Once the temperature of the temperature monitoring part reaches or exceeds the rated temperature of the temperature-sensing sticker, the temperature-sensing sticker will immediately change from white to black, and the temperature-sensing sticker with a large discoloration area will also display the over-temperature number at that place. The color is irreversible after the over-temperature discoloration is pasted, and it is easy for people to find the temperature rise of the temperature monitoring part during inspections, so as to find out hidden troubles and prevent accidents.

The special temperature-sensing stickers for railway passenger car wires and cables produced by our company have good flexibility and strong adhesiveness, and can be firmly pasted even on small cylindrical surfaces of wires and cables.

1.2 Types and characteristics of special temperature-sensitive stickers for railway passenger car wires and cables

1. See Table 1 for the basic models and characteristics of SWX series special temperature-sensing stickers for railway passenger car wires and cables.

2. Special needs can be made according to customer requirements, such as making temperature-sensitive stickers with different rated temperatures and specifications.

3. The error between the discoloration temperature of the temperature-sensitive sticker and the rated temperature is ±1°C.

1.3 How to use special temperature-sensitive stickers for railway passenger car wires and cables

1. SWX series railway passenger car wire and cable special temperature-sensitive stickers are in the form of labels. As long as you choose a temperature-sensitive sticker with an appropriate rated temperature, it can be directly pasted on the wire and cable connection points of the air-conditioned passenger car control cabinet and other parts that need to monitor the temperature. The sticking part of the temperature-sensitive sticker should be clean and dry, and it should be firmly pressed when sticking.

2. If you want to know the temperature rise of the temperature monitoring part during use, you can stick a temperature-sensitive sticker with two or more rated temperature points.

3. Precautions: Sticking the temperature-sensitive stickers should be carried out when there is no electricity on the wires and cables or other temperature monitoring parts, and safety regulations must be followed.

1.4Storage and service life of special temperature-sensing stickers for railway passenger car wires and cables

1.The temperature-sensitive stickers can be stored at room temperature. They are harmless, odorless, and non-irritating to the skin. They should be kept away from heat sources (such as radiators, electric stoves, etc.).

2.Due to the complexity of the application site of the temperature-sensing sticker, when the temperature-sensing sticker is pasted on the temperature monitoring part, it can be used for 5 years under normal temperature and normal environment. The temperature-sensitive stickers that have changed color due to over-temperature should be replaced in time with maintenance.