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G7623 A2 LSZH Railway Communication Cable, Tinned Copper Pairs
G7623 A2 communication cable for internal station, building and equipment-room wiring. Tinned solid copper pairs have LSZH insulation and sheath, with 0.5, 0.6 and 0.63 mm conductor-diameter options.
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APPLICATION AND DESCRIPTION

G7623 A2 cable is intended for internal communication wiring in railway stations, buildings and equipment rooms where the project calls for a limited-fire-hazard construction. Tinned annealed solid copper conductors have LSZH insulation and are assembled into twisted pairs and stranded units. Non-hygroscopic wrapping tape and an LSZH sheath surround the core assembly.

STANDARD

  • LUL Spec G7623 A2

CABLE CONSTRUCTION

  • Core IdentificationConductoBR: Tinned annealed solid copper, 0.5/0.6/0.63 mm nominal diameter.

  • Insulation: LSZH Insulation.

  • Cabling Element: Two insulated conductoBR are twisted together to form a pair.

  • Stranding: Cables are composed of unit stranding.

  • Core Wrapping: Non-hygroscopic plastic tape with overlapping.

  • Outer Sheath: LSZH sheath.

ELECTRICAL CHARACTERISTICS AT 20℃

Nominal Conductor Diametermm0.50.60.63
Maximum Conductor ResistanceΩ/km986858
Minimum Insulation Resistance @500 V DCMΩ.km120120120
Maximum Average Mutual Capacitance @1KHznF/km808080
Maximum Average Capacitance Unbalance @800Hz pair-to-pair
500500500
Test Voltage AC 1minV500500500

MECHANICAL AND THERMAL PROPERTIES

  • Minimum Bending Radius: 7.5×OD

  • Temperature Range: -30℃ to +70℃ (during operation); -10℃ +55℃ (during installation)

DIMENSIONS AND WEIGHT

Cable CodeNo. of paiBRMinimum Sheath Thickness
mm
Nominal Overall Diameter
mm
Nominal Weight
kg/km
0.5mm Conductor, 0.82mm Insulated Wire
BR7623A2-HH-1P0.511.36.030
BR7623A2-HH-2P0.521.37.045
BR7623A2-HH-3P0.531.47.050
BR7623A2-HH-6P0.561.59.061
BR7623A2-HH-10P0.5101.611.0107
BR7623A2-HH-20P0.5201.914.0190
BR7623A2-HH-40P0.5401.916.0320
BR7623A2-HH-80P0.5802.223.0640
BR7623A2-HH-100P0.51002.225.0760
BR7623A2-HH-160P0.51602.629.01150
0.6mm Conductor, 1.12mm Insulated Wire
BR7623A2-HH-1P0.611.46.035
BR7623A2-HH-2P0.621.47.050
BR7623A2-HH-3P0.631.57.060
BR7623A2-HH-6P0.661.69.085
BR7623A2-HH-10P0.6101.711.0145
BR7623A2-HH-20P0.6202.214.0245
BR7623A2-HH-40P0.6402.218.0410
BR7623A2-HH-80P0.6802.825.0830
BR7623A2-HH-100P0.61002.827.0980
BR7623A2-HH-160P0.61603.233.01450
0.63mm Conductor, 1.15mm Insulated Wire
BR7623A2-HH-1P0.6311.45.540
BR7623A2-HH-3P0.6331.57.370
BR7623A2-HH-5P0.6351.68.589
BR7623A2-HH-6P0.6361.68.9100
BR7623A2-HH-10P0.63101.711.1170
BR7623A2-HH-12P0.63121.711.6195
BR7623A2-HH-160P0.631603.235.01595


KEY FEATURES

  • Tinned solid copper in 0.5, 0.6 and 0.63 mm nominal conductor diameters.

  • LSZH insulation and outer sheath with twisted-pair unit construction.

  • Multiple pair counts with separate dimensions for each conductor-size group.

SELECTION NOTES

Choose conductor diameter and pair count as a complete cable code; the available pair counts differ between size groups. Use the corresponding diameter and weight when planning supports and terminations. A reference to LUL Spec G7623 A2 identifies the cable specification; project acceptance and documentation should be agreed for the installation.

RELATED CABLE TYPES

FREQUENTLY ASKED QUESTIONS

Where is G7623 cable intended to be installed?

Internally within station buildings and equipment rooms requiring the specified limited-fire-hazard construction.

Are the conductors bare or tinned copper?

The construction uses tinned annealed solid copper conductors.

Which parts use LSZH material?

Both the conductor insulation and the outer sheath are specified as LSZH.

Does every conductor size have the same pair-count range?

The table lists different available pair counts under the 0.5, 0.6 and 0.63 mm conductor groups. Select the complete listed construction.

What minimum bend radius is listed?

The mechanical data specifies 7.5 times the overall cable diameter.