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brief introduction
For the control circuit of rated voltage 500V or D.C. 1000V and transmit following railway signal and audio signal or signal automatic device, which comprehensive sheath, aluminum sheath railway signal cable has a shielding performance, suitable for electrified section or other electromagnetic interference area, laying.
Use characteristics
(1) the ambient temperature of the cable is ~+60
(2) the long-term working temperature of the cable conductor shall not exceed +70.
(3) the temperature of the cable laying environment: PVC sheath cable should not be less than 0 degrees C; the outer sheath cable should not be less than -20.
Cable (4) allowed bending radius: non armored cable should not be less than 10 times of cable diameter; armored cable should not less than 15 times of the cable diameter.
(5) comprehensive sheath railway signal cable ideal shielding factor is less than or equal to 0.8; aluminum sheath railway signal cable ideal shielding factor is less than or equal to 0.3
Delivery length 500m and above the cable should be not less than 50% of total delivery length 50~250m short cable delivery length should not exceed 5% of the total delivery length of cable length measurement error should not exceed 0.5%. Delivery in accordance with the prescribed length of negotiation between the two parties
Cable specifications
(4---61) core 1.0mm X
Identification of signal cable models
1 signal cable according to the sheath type including plastic sheath (PTY03, PTY23), integrated sheath (PTYA23, PTYA22), aluminum sheath (PTYL23, PTYL22) signal cable;
2 signal digital cable is divided into plastic sheath (SPTYW03, SPTYW23), integrated sheath (SPTYWA23) aluminum sheath (SPTYWL23), inner shield (SPTYWP03 or SPTYWP23, SPTYWPA23, SPTYWPL23) digital signal cable.
SP- digital signal cable
T- Railway
YW- skin foam skin hair cut hair foam insulation
P- inner shield
L- aluminum sheath
A- integrated sheath
23- double steel tape armored PE sheathed
03- PE outer sheath
Development trend
Railway signal cable products also both broadband network, IPTV, transmission of telephone, fax, video telephone, anti-theft alarm, etc. a variety of signal function, with the rapid development of intelligent building, computer industry and information highway engineering, people more and more demand for office and the informationization of family life and dependence, for metal wire and cable demand will be growing is the development direction of the metal wire and cable.
Due to the expansion of railway signal cable market capacity, the traditional railway signal cable market size is expected to maintain the amount of about 30 million kilometers per year. Some special cables, such as railway signal cable, marine cable, car wire, mine cable, offshore oil production platform cable, there will be a greater demand growth. Such as railway signal cable industry, according to the state of the adjustment in 2008 "long-term railway network planning", to 2020, the national railway operating mileage reached more than 120000 km, double track railway electrification rate and the rate of above 50% and 60%, respectively, mainly on busy trunk lines to achieve separation of passenger and freight traffic, basically forming reasonable layout, clear structure, perfect function, cohesion and smooth railway network and transport capacity meet the needs of national economic and social development, the main technical equipment at or close to the international advanced level. In the construction of the national railway network, railway signal cable is widely used in the construction of rail transport, there are a large number of applications, high-speed rail and rail transport construction is an integral part of the cable products.
Our country since 2011 has leapt to the world 's largest cable producer, also known as global cable consumption countries with the fastest growth, but had to face is, at present China's per capita consumption level of wire and cable only one-fifth of the developed countries, equivalent to the level of the Latin American countries, resulting in the domestic cable industry overcapacity. The future with the railway signal cable growing market demand, will greatly stimulate the development of the domestic cable industry, for the domestic cable manufacturers to open up a new world.
