Frigostabile elevator flat cable

Abstract

The invention discloses a frigostabile elevator flat cable which comprises a plurality of parallel conductor cores. Each conductor core consists of a middle conductor and an insulating layer outside the conductor; a sheath layer is arranged outside the conductor cores; isolation oil is added between the conductor cores and the sheath layer; the conductors are formed from Category-5 soft copper conductors by bunching and stranding and have a pitch ratio of 14 to 20; and both the insulating layers and the sheath layer are made of Buna-N PVC (polyvinyl chloride) materials with low temperature resistance of subzero 40 DEG C. According to the invention, the temperature resistance lower limit of the insulating layers and the sheath layer can reach subzero 40 DEG, the frigostabile elevator flat cable has better flexibility and higher strength relative to the PVC materials, and by testing, the strength of the frigostabile elevator flat cable is commonly in the range of 15MPa and the elongation of the frigostabile elevator flat cable can reach over 500 percent, so that various quality problems caused by reduction of the flexibility of the elevator cable under the cold condition are effectively solved. Moreover, the added isolation oil plays the roles of preventing adhesion and lubricating, so that the deflection performance of the cable can be slightly promoted.

Description

[0001] technical field [0002] The invention relates to a power cable, in particular to a cold-resistant elevator flat cable. Background technique [0003] Existing elevator cable insulation and sheath materials generally use soft polyvinyl chloride, which can meet the requirements of most elevator cables, but in the environment where the environment and climate in the north are very low, ordinary elevator cables obviously cannot meet his requirements. Climate requirements, ordinary elevator cable laying and operating conditions can not be lower than 0 ℃, and the temperature in winter in the north is usually below 0 ℃, as the temperature drops, the weakness of PVC plastic drops sharply, and the plastic becomes hard and brittle , Its sheath is easy to crack when the cable is run at this temperature, because the conductor inside the cable is hardened and disconnected due to long-term operation, the life of the cable is greatly reduced, which brings unnecessary troubles to us...

AI Technical Summary

Problems solved by technology

[0003] Existing elevator cable insulation and sheath materials are generally made of soft polyvinyl chloride, which can meet the requirements of most elevator cables, but in the environment where the environment and climate in the north are very low, ordinary elevator cables obviously cannot meet his requirements. Climate requirements, ordinary elevator cable laying and operating conditions can not be lower than 0 ℃, and the temperature in winter in the north is usually below 0 ℃, as the temperature drops, the weakness of PVC plastic drops sharply, and the plastic becomes hard and brittle , Its sheath is easy to crack when running the cable at this temperature, because the conductor inside the cable is hardened and disconnected due to long-term operation, the life of the cable is greatly reduced, which brings unnecessary troubles to users and maintenance

Images