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  HomeProuductsEN50288-7 Instrument Cables Cables

EN 50288-7 STANDARDS PVC Insulated, PVC Sheathed, Individual and Overall Screened & Double Steel Tape Armoured Instrumentation Cables (Multipair)

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RE-Y(St)YDSTAY PIMF 70°C / 300V

APPLICATION

For transmission of analogue and digital signals in instrument and control systems; allowed for use in zone 1 and zone 2, group II, classified areas (IEC 79-14), not allowed for direct connection to low impedance sources, e.g. public mains electricity supply. Recommended for indoor and outerdoor installation, on racks, trays, in conduits, in dry and wet locations; not for direct buiral. Recommended for use as fire protection messure for people and important material assets.

STANDARDS

Basic design to EN 50288-7

FIRE PERFORMANCE

Flame Retardance (Single Vertical Wire Test) EN 60332-1-2; IEC 60332-1-2; BS EN 60332-1-2; VDE 0482-332-1; NBN C 30-004 (cat. F1); NF C32-070-2.1(C2); CEI 20-35/1-2; EN 50265-2-1*; DIN VDE 0482-265-2-1*

Note: Asterisk * denotes superseded standard, *** denotes optional.

VOLTAGE RATING

300V

CABLE CONSTRUCTION

EN50288-7

  • Conductor: Annealed copper solid or plain copper stranded to IEC 60228 Class 2.
  • Insulation: PVC compound as per EN 50290-2-21.
  • Pairs: Two insulated conductors uniformly twisted together with a lay not exceeding 100mm
  • Binder tape: Polyester (PEPT) Tape
  • Individual Screen: Aluminium/polyester tape is applied over the laid up pairs metallic side down in contact with tinned copper drain wire, 0.5mm2, covered with extruded PVC.
  • Binder tape: Polyester (PEPT) Tape
  • Overall Screen: Aluminium/polyester tape is applied over the laid up pairs metallic side down in contact with tinned copper drain wire, 0.5mm2
  • Inner Sheath: PVC compound as per EN 50290-2-22.
  • Amouring: Double steel tape armour
  • Outer Sheath: Thermoplastic PVC compound as per EN 50290-2-22. UV resistance, hydrocarbon resistance, oil resistance, anti rodent and anti termite properties can be offered as option. Compliance to fire performance standard (IEC 60332-1, IEC 60332-3, UL 1581, UL 1666 etc) depends on the oxygen index of the PVC compound and the overall cable design. LSPVC can also be provided upon request.

COLOUR CODE

  • Insulation: Red / White
  • Outer Sheath: Gray

PHYSICAL and THERMAL PROPERTIES

  • Temperature Range During Operation (Fixed State): -30°C – +70°C
  • Temperature Range During Installation (Mobile State): -5°C – +50°C
  • Minimum Bending Radius: 10 X Overall Diameter
  • Sunlight Resistance: UL 1581 section 1200
  • Oil Resistance: ASTM No: 2 (7 HRS 90°C)

ELECTRICAL ROPERTIES

Conductor Area Size mm2 0.5 0.75 1.0 1.3 1.5
Insulation thickness (nominal) mm 0.35 0.38 0.4 0.45 0.45
Conductor resistance (20°C) Ω/km 36.7 25 18.5 14.2 12.3
Insulation resistance (20°C) MΩ.km(Min.)  
  Individual conductors 1G
  Individual screens 1M
Mutual Capacitance (1 kHz) pF/m(Max.) <150
Inductance mH/km (Max.) 1
L / R (ratio) (max.) μH/Ω 25 25 25 40 40
Test Voltage V (1min)  
AC 2000
DC 3000

CONSTRUCTION PARAMETERS

Caledonian Cable Code RE-Y(St)YDSTAY PiMF
No. of Pairs x2xCross Section Nominal Insulation Thickness Nominal Inner Sheath Thickness Nominal Overall Diameter Over Inner Sheath Nominal Armour Steel Tape Thick -ness Nominal Overall Diameter Over Armour Nominal Outer Sheath Thickness
  No.x2xmm2 mm mm mm mm mm mm
RE-Y(St)YDSTAY PiMF 2P1.5 2x2x1.5 0.45 1.2 14.0 0.2 14.8 1.5