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Chapter 7.1.1

Single Pair & Single Triad PVC Insulated and Jacketed Foil Shielded 300V Instrument Cables

Physical Description

Power-Limited Tray Cables conforming to UL Subject 13 and NEC Article 725 Class 2 Circuits.
The cables can be used for instrument interconnections in process plant for LF control applications.
Each cable contains one twisted pair or one twisted triad.
The cables are overall foil-shielded and jacketed with FR-PVC compound.

Conductors

Stranded bare annealed copper, Class B ASTM B-8.

Insulation type Flame retardant PVC compound, conforming to BS 6746 Type 5.
Insulation thickness 0.4 mm nom.

Color code

Pair: Black x White.   Triad: Black x White x Red.

Conductor arrangement

The conductors are twisted together with a 50mm max. lay length.

Core warp

Polyester tape, providing 100% coverage.

Drain wire

Stranded annealed tinned copper.

Overall shield

Polyester-aluminum tape, foil face in, providing 100% coverage.

Rip-cord PA stranded rip-cord (14 Kgf) laid under the jacket for easy jacket removal.

Outer Jacket

Heavy-duty Flame-retardant PVC compound, UV resistant, conforming to BS 6746 Type 9.

Color Black RAL 9005 or Red RAL 3000
Surface printing WW P/N, Cable description, Batch Number, Sequential meter-mark.

Physical Properties

Minimum Bend Radius

8 x D

Storage Temperature

-20 to +60C

Operating temperature

-20 to +90C

Flame test

IEC 60332-1

Electrical Properties @ 20C

Continuous working voltage

300 V rms max.

Insulation Dielectric strength

2000 V rms min/ 1 minute (between conductors)

Jacket Dielectric strength

5000 V rms min/ 1 minute (shield to water)

Velocity of propagation

55% nom. @ 1 KHz

WW P/N Construction Conductor Insulation OD Jack. Thickness Cable OD Drain Wire Total Weight DC Resistance
      mm mm mm   Kg/Km Ohm/Km
DF502G10 1x2x20 AWG 7x0.32mm 1.75 0.5 4.6 22 AWG 30 35.9
DF503G10 1x3x20 AWG 7x0.32mm 1.75 0.5 4.8 22 AWG 37 35.9
DF502H10 1x2x18 AWG 7x0.40mm 2.00 0.5 5.0 20 AWG 40 22.0
DF502H30 1x2x18 AWG 7x0.40mm 2.00 0.5 5.0 20 AWG 40 22.0
DF502H80 1x2x18 AWG 7x0.40mm 2.00 0.5 5.0 20 AWG 40 22.0
DF503H10 1x3x18 AWG 7x0.40mm 2.00 0.5 5.4 20 AWG 50 22.0
DF502J10 1x2x16 AWG 7x0.49mm 2.30 0.5 5.7 20 AWG 62 13.9
DF502J30 1x2x16 AWG 7x0.49mm 2.30 0.5 5.7 20 AWG 62 13.9
DF503J10 1x3x16 AWG 7x0.49mm 2.30 0.5 6.0 20 AWG 69 13.9
DF503J30 1x3x16 AWG 7x0.49mm 2.30 0.5 6.0 20 AWG 69 13.9
 

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