MINING POWER CABLES Technical Data sheet


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YHKGYFtZnyn 0,6/1 kV are armoured, mining power cables with individually shielded wires intended to work in power engineering installations.

Cables can be applied in:

- opencast and underground mines, except explosive condition zones,

- underground mines in their non-methane and methane fields in areas of „a”, „b” or „c” degree explosion hazard,

- underground mines in workings of class A or B coal dust explosion hazard.

Steel tape armoured cables can be installed in mine workings with an angle of inclination up to 45°.

Cables have positive Technical Opinion No. 2242/2011 regarding application in underground mines and Certificates No. 2242/A1/2011 and 2242/A2/2011  issued by TI EMAG Institute.


- bare annealed copper conductors, meeting requirements of class 1 or 2 per PN-EN 60228,

- PVC insulation, colours of insulation: natural, red and blue,

- copper tape shield,

- copper single wire or multiwire conductor as a central element,

- shielded conductors laid-up around the central element,

- inner covering on cable core, PVC or unvulcanised rubber,

- PVC inner sheath,

- galvanized steel tape armour,

- special (oxygen index bigger than 29%) PVC cable sheath, yellow, other colours also available.


Operating voltage Uo/U    0.6/1 kV
Voltage test    4 kV rms

Conductor temperature limit
      in work conditions          +70°C
      in short-circuit               +160°C

Temperature range
      during operation            from - 30 to + 70°C
      during installation          from   - 5 to + 70°C

Minimum bending radius      12 x cable diameter

Cable combustibility             flame retardant

Combustibility tests             PN-EN 60332-1-2, IEC 60332-1-2, PN-EN 60332-3-24, IEC 60332-3-24 (cat. C)

Reference standards           WT-TK-27

The cable meets requirements of the low voltage directive 2014/35/EU

* 1 second short-circuit current rating is calculated assuming that the temperature of power conductors during short-circuit equals the maximum conductor operating temperature under normal conditions.

Other cross-sections and conductor counts available on request.

TECHNOKABEL S.A. reserves the right to change specifications without prior notice.