TUNNEL CABLES

3GSEYQY

These cables are used for the connection of mobile operating equipments. In mines and underground

excavations with hazardous environments, in stationary operation, e.g.highvoltage transformers in mining and

tunneling. It can be used also for powering main pannels and switchboards in tunneling applications.

conductor	Circular Stranded Plain Annealed Copper Conductor (class 2 acc. to IEC 60228)
Insulation	3Gl3 type EPR Compound
Electrical Field Control	Extruded inner and outer rubber semiconductive layer
Core Identification	Natural coloring with black semiconductive layer
Screen	Copper tapes applied over each main core
Lay Up	3-Screened Cores will be laid up in concentrically
Bedding	PVC filler
Armour	Galvanized Steel Wire Braid (CSWB) Min90%
Outer Sheath	5GM5 Type elastomer compound. Red

Working Temperature
Rated Voltage	18 / 30 KV
AC Test Voltage	48 KV
Max.Permissible Operating Voltage AC	20.8 / 36 KV
Max.Permissible Operating Voltage DC	27 / 54 KV
Min Bending Radius Current Carrying	Acc. to DIN VDE 0298 part 3
capacity	According to DIN VDE0298, Part 4
Max. Short circuit Temperature	250°C
Max. conductor Temperature	90°C
Fixed	-25°C - +80°C
Mobile	+5°C - +80°C
Max.Tensile Load Of cable	15N/mm²
max.torsion	25°/m

Cross Section (mm²)	Overall Diameter min-max (mm)	max.Dc Resistance (20°C) (Ω/km)	Appro. Weight (kg/km)
3x25/16	65.1-72.0	0.727	6860
3x35/16	68.0-75.1	0.524	7640
3x50/16	70.8-78.3	0.387	8520
3x70/16	74.5-82.4	0.268	9760
3x95/16	79.0-87.2	0.193	11280
3x120/16	82.2-90.9	0.153	12600