UNIT TYPE CONTROL CABLES FOR POWER STATIONS Technical Data sheet
 

 

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APPLICATIONS

RD-H(St)H  n x 2 x 0,5 mm2 Bd are unit type control cables intended for analogue or digital data transmission up to 10 kHz.

Pair lay lengths are designed to ensure minimum near-end cross-talks in units.

An electrostatic shield protects the cables against interference by external electric fields.

Halogen free cables, applied when higher safety in case of fire is required. The cables are flame retardant, their smoke emission in fire is low and released gases are not corrosive.

The cables are suitable for indoor installations connecting fixed and movable equipment.

The cable is also suitable for Maxi-Termi-Point jointing technique.

CONSTRUCTION                                                                                                           

- flexible, multiwire conductors, stranded of bare annealed copper wires (tin-plated on request), regular construction 7 wires,

- insulation made of halogen free compound (HFFR),

- insulated conductors twisted into pairs, star-quad assembly in the case of two-pair cable, colour of insulated conductors:

pair number

"a" wire

"b" wire

1

blue

red

2

grey

yellow

3

green

brown

4

white

black

- four pairs stranded into a unit and bound up with a polypropylene binder marked with unit number,

- units laid-up into a cable core,

- cable core wrapped in polyester tape,

- overall electrostatic shield incorporating aluminium-polyester tape and stranded annealed tinned copper drain wire, cross-section 0.5 mm2 (7x0.3 mm),

- cable sheath made of halogen free compound (HFFR), grey (RAL 7001), other colours also available.

AVAILABLE UPON REQUEST

RD-H(St)HH  n x 2 x 0,5 mm2 Bd - cables with double HFFR sheath, suitable for outdoor installation and direct earth burial.

CHARACTERISTICS

Operating voltage, peak value

600 V

Voltage test

conductor/conductor

2,0 kV sk

conductor/screen

2,0 kV sk

DC loop resistance at 20°C, maximum

73,6 Ω/km

Insulation resistance, minimum

100 MΩ·km

Current-carrying capacity limit

6 A

Mutual capacitance at 800 Hz, maximum

100 nF/km*)

Near-end cross-talk at 10 kHz, minimum

60 dB/km

Characteristic impedance, nominal

at 1 kHz

370 Ω

at 10 kHz

130 Ω

Attenuation loss, nominal

at 1 kHz

1,2 dB/km

at 10 kHz

3,0 dB/km

Operating temperature range

for fixed installation

from - 30 to + 80°C

for movable installation

from   - 5 to + 70°C

Minimum bending radius

10 x cable diameter

Corrosivity of emitted gases per

PN-EN 60754-1, PN-EN 60754-2, IEC 60754-2

pH, appr.

6,8

conductivity appr.

0,4 µS/mm

Smoke density

PN-EN 61034-2, IEC 61034-2

light transmittance, min.

70%

Cable combustibility

flame retardant

Combustibility tests

PN-EN 60332-1-2, IEC 60332-1-2

Reference standard

DIN VDE 0815

*)  this value can be higher by 20 % in four or less pair cable

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

Other cross-sections and pair counts available on request.

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

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