Railway Digital Signal Cable SPTYWPA23

Railway Digital Signal Cable SPTYWPA23

Railway Digital Signal Cable SPTYWPA23

SPTYWPA23

It is fit for railway signal and digital signal transmission in high speed railway

Copper cable is used as signal transmission especial for railway.

Long term operation temperature: no more than 70 centigrade; Environmental temperature: -40°C  to +60°CInstallation temperature: not lower than -10°C; Bend radius when installation:Not smaller than 10 times of cable outer diameter for the non-armored cable;Not smaller than 15 times of cable outer diameter for the armored cable;Ideal shield constant of Al-PE composite sheath cable is not more than 0.8;Ideal shield constant of Al sheath cable is not more than 0.2

SPTYWA23 SPTYWPA23 SPTYWL23 SPTYWPL23 Electrical parameter

No	Item	Unit	Value	Conversion formula
1	D.C Resistance at 20°C  D.C Resistance of each conductor conductor balance of quad pairs	Ω/km %	23.5±1.0 ≤1.0	L/1000 —
2	Resistance	MΩ·km	≥10000	1000/L
3	nF/km Working capacitance Star quad pairs working capacitance Shield Star quad pairs twin pair working capacitance Capacitance between each insulated core and others connected to earth	nF/km	28±3   28±2 ≤50 ≤70	L/1000
4	Capacitance coupling K1       Average value  Maxium value	pF/km	≤81 ≤330	L/1000
5	Capacitance imbalance to the earth ea1,ea2       Average value ea1,ea2       Maxium value ea1,ea2 ea1,ea2 means the maxium value for the for core cable	pF/500m	≤300 ≤800	L/1000

Railway Digital Signal Cable SPTYWPA23