INSTRUMENTATION CABLES

 

0.5 mm² TYPE :                 MULTI-PAIR SCREENED, OVERALL SCREENED

CONSTRUCTION

Conductor         :     Stranded Bare/Tinned Copper Wire

 

Insulation           :     Polyethelene(PE)or Poly Vinyl Chloride(PVC)

                               Nominal thickness : 0.4 mm

                               Dia.over insulation : 1.73 mm

Cores                 :    Twisted pairs, 40-50 mm Colour Coded

 

Pair Screen        :     Polyester tape wrap

                               Solid/Stranded drain wire

                               Poly Al tape layer

                               Polyester tape layer

 

Communication Wires if necessary

 

Overall              :     Polyester Tape Wrap

 

Screen              :      Stranded Drain Wire 0.5mm²

                               Poly – A1 Tape layer

                               Polyester Tape Layer

 

Outer sheath     :      PVC

 

NOTE:     i) Similar construction for other conductor sizes like 0.75mm², 1.0mm², 1.5mm² and 2.5 mm2

                ii) G.I. Wire Armouring and Outer sheath can be provided, where necessary.

 

 

BASIC SPECIFICATIONS AT 20° C

 

Conductor Resistance                                 :     38 Ohms/Km Max.

Insulation Resistance                     PE         :     5000 M.Ohms.km.Min.

                                                    PVC      :     100   M.Ohms.km.Min.

 

Mutual Capacitance at                  PE         :      75  pF/Mtr.Max.

Hz (Core to Core)                        PVC      :     140 pF/Mtr.Max.

 

Attenuation at 1 kHz                     PE         :     1.3 dB/km.

                                                    PVC      :     1.7 dB/Km.

Operating Voltage                                      :     250 Volts.

 

No. of Pairs	Laid-up dia.	Cables Wt.	Overall dia.
	(approx.)	(approx.)	with armour &
	(mm)	kg/km.	Sheath (mm)
1	7.0	80	12.0
2	9.5	105	14.5
3	10.5	120	15.5
4	11.5	140	16.5
8	15.0	240	21.0
10	16.5	260	22.5
16	19.5	430	25.5
20	22.0	520	28.0
24	25.0	640	31.0