Applications :

• The cables are designed for long distance of over 10km telecommunications alongside railway lines.

Standards :

• SNCF CT 2328 (Main cables) /SNCT CT 2329 (Branch cables)

 

Construction :

• CT2328 Type (Main Cables)
• Conductors : Sol id copper, 0.8mm nominal diameter.
• Insulat ion : Coloured sol id polyethylene.
• Cabling Element : Four conductors are twisted together to form a quad.
• Possible Harness : Aluminium screen.
• Filling : Petroleum jelly.
• Screen : PE-copolymer coated aluminium tape.
• Drain Wire : Tinned drain wire.
• Inner Sheath : Low density polyethylene.
• Screen : One corrugated copper tape.
• Intermediate Sheath : Low density polyethylene.
• Armour : Two helically applied steel tapes.
• Outer Sheath : Low density polyethylene.

Optional :

• CT2329 Type (Branch Cables): For CT 2329 type, the cables have PE inner sheath, double corrugated steel tapes armour and PE outer sheath, without aluminium tape screen & copper tape.

Electrical Characteristics at 20 °C :

• Nominal Conductor Diameter	mm	0.8
  Maximum Conductor Resistance (DC)	Ω/km	73.4
  Minimum Insulation Resistance @500 V DC (3mins)	MΩ.km	15000
  Mutual Capacitance @800Hz	nF/km	51
  Average Capacitance Unbalance
  Main Cables
  In quad	pF/1450 m	50
  Between quads	pF/1450 m	30
  Real-ground	pF/1450 m	200
  Branch Cables
  In quad	pF/1450 m	100
  Between quads	pF/1450 m	100
  Real-ground	pF/1450 m	700
  Maximum Attenuation @1MHz	dB/km	15.9
  Maximum Reduction Factor for Main Cables @100V/km 50Hz
  14 quads		0.3
  21 quads		0.2
  28 quads		0.18
  Dielectric Strength (DC voltage 1min)
  Conductor to Conductor	V	1500
  Conductor to Screen	V	3000

Mechanical and Thermal Properties :

• Minimum Bending Radius : 10×OD.
• Temperature Range : -40°C to +60°C (during operation); -10°C +60°C (during installation).

Dimensions and Weight :

 

CT2328 (Main cable)

 

Cable Code	No. of Quads	Nominal Sheath Thickness mm			Nominal Overall Diameter mm	Nominal Weight kg/km
		Inner	Interm.	Outer
0.8mm Conductor, 1.27mm Insulated Wire
RS2328-2Y2Y(K)2YB2Y-14Q0.8	14	1.2	1.1	2.2	29.2	1332
RS2328-2Y2Y(K)2YB2Y-21Q0.8	21	1.3	1.3	2.5	31.3	1655
RS2328-2Y2Y(K)2YB2Y-28Q0.8	28	1.3	1.3	2.5	35.5	2013

 

CT2328 (Main cables with screened quads)

 

Cable Code	No. of Quads	Nominal Sheath Thickness mm			Nominal Overall Diameter mm	Nominal Weight kg/km
		Inner	Interm.	Outer
0.8mm Conductor, 1.27mm Insulated Wire
RS2328-2Y(L)2Y(K)2YB2Y-(14+7)Q0.8	14+7screen Quads	1.3	1.3	2.5	32.7	1765
RS2328-2Y(L)2Y(K)2YB2Y-(18+3)Q0.8	18+3screen Quads	1.3	1.3	2.5	32.9	1783

 

CT2329 (Branch cable)

 

Cable Code	No. of Quads	Nominal Sheath Thickness mm		Nominal Overall Diameter mm	Nominal Weight kg/km
		Inner	Outer
0.8mm Conductor, 1.4mm Insulated Wire
RS2329-2Y2YB2Y-4Q0.8	4	1.0	1.7	16.4	339
RS2329-2Y2YB2Y-8Q0.8	8	1.2	1.8	18.8	477
RS2329-2Y2YB2Y-14Q0.8	14	1.2	2.2	22.3	686

 

 

 

UV Resistant	Water Resistant	Rated voltage	Buried in Ciround	Laid In Ducts	Zero Halogen IEC 60754-1/NF C20-454 EN 50267-2-1