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RD-H(St)H

Bd instrumentation cable, halogen-free

Technical data

Halogen free data transmission cable
adapted to DIN VDE 0815
Coductor resistance (loop)
max. 73,6 Ohm/km (0,5 mm²)
max. 36,8 Ohm/km (1 mm²)
Temperature range
flexing -5°C to +50°C
fixed installation -30°C to +70°C
Operating peak voltage max. 225 V
(not for heavy current installation purposes)
Test voltage
core/core 500 V
core/screen 2000 V
Insulation resistance
min. 100 MOhm x km
Mutual capacitance at 800 Hz
max. 100 pF/m
(this value may be exceeded by
20% with a make-up to 4 pairs)
Impedance
at 1 kHz (nominal values)
450 Ohm (0,5 mm²)
320 Ohm (1 mm²)
Capacity unbalance at 800 Hz
max. 200 pF/100 m
(20% of the values, but one
value up to 400 pF is allowed)
Cross-talk attenuation
at min. 10 kHz, 60 dB/500 m
Line attenuation
at 1 kHz (nominal values)
1.2 dB/km (0,5 mm²)
0.9 dB/km (1 mm²)
Minimum bending radius
7,5x cable Ø
Radiation resistance
up to 100x10⁶ cJ/kg (up to 100 Mrad)

Cable structure

Bare copper conductor, multi wires
Conductor construction:
0,5 mm² = 7x0,3 mm
1 mm² = 7x0,43 mm
Core insulation of halogen-free
polymer compound
Core identification coloured
pair-no.1: a-core = BU; b-core = RD
pair-no.2: a-core = GY; b-core = YE
pair-no.3: a-core = GN; b-core = BN
pair-no.4: a-core = WH; b-core = BK
Cores twisted in pairs, with short lay length
(approx. 20 pitch/m ≙ 50 mm)
4 pairs stranded to a unit
(unit labelled with numbers
printed plastic helix)
Units stranded in concentric layers
Foil wrapping
Electrostatic screen of plastic coated
aluminium foil and drain wire tinned, 0,5 mm²
Outer sheath of halogen-free, polymer
compound, flame resistant
Sheath colour: grey (RAL 7032)

Properties

The static screen protects the transmission
circuits against outer electrical interferences
The halogen-free cables prevent the fire
propagation and compared to PVC cables
exist only a low smoke density under flame
influence
This results no decomposition products which
destroy equipments, machines and buildings
by corrosion

Tests

Flame test acc. to
DIN VDE 0482-332-3 / BS 4066-3 /
DIN EN 60332-3 / IEC 60332-3
Corrosiveness of combustion gases
acc. to DIN VDE 0482-267 /
DIN EN 50267-2-2 / IEC 60754-2
Smoke density acc. to
DIN VDE 0482-1034-1+2 / BS 7622-1+2
DIN EN 61034-1+2 / IEC 61034-1+2

Note

AWG sizes are approximate equivalent
values. The actual cross section is in mm².

Application

The halogen-free data transmission cable RD-H(St)H are used for measurement and control technology for transmission of analog and digital signals up to frequencies of approx. 10 kHz. The twisted pairs with short pitches (<50 mm for 0,5 mm²) and different lay lengths which lead good cross-talk attenuation values in a unit. These cables are used in inside buildings (in special cases in open air, but with sufficient protection against sunlight is necessary).
CE = Product conforms with Low-Voltage Directive 2014/35/EU.

Downloads

Data sheet
Certificate of compliance

Part no.	No.pairs x cross-sec. mm²	Outer Ø approx. mm	Cop. weight kg / km	Weight approx. kg / km	AWG-No.
20200	2 x 2 x 0,5	7,0	26,0	70,0	20
20201	4 x 2 x 0,5	9,0	46,0	110,0	20
20202	8 x 2 x 0,5	11,6	86,0	190,0	20
20203	12 x 2 x 0,5	13,5	127,0	240,0	20
20204	16 x 2 x 0,5	14,0	167,0	300,0	20
20205	20 x 2 x 0,5	16,0	209,0	360,0	20
20206	24 x 2 x 0,5	17,5	250,0	420,0	20
20207	28 x 2 x 0,5	19,0	290,0	480,0	20
20208	32 x 2 x 0,5	21,0	331,0	570,0	20
20209	36 x 2 x 0,5	21,5	372,0	614,0	20
20210