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 PAS 5308 Part 2 / Type 1 (unarmoured cables)
PAS 5308 Standards Cable Part 2 Type 1 PVC-IS-OS-PVC

Application

These cables are designed to connect electrical instrumentation and communication systems in and around process plants and similar applications, Generally used to transmit analogue or digital signals in measurement and process control where chemicals may be present. The individual screening of each pair limits the consequence of crosstalk.

Construction

PAS 5308 Cable Part 2 Type 1 PVC-IS-OS-PVC

Conductor Annealed copper, sizes: 0.5mm² and 0.75mm² mulitistranded(Class 5), 1.5mm² and 2.5mm² multistranded(Class 2) to BS EN 60228
Insulation PVC to BS EN 50290-2-21:2002, grade TI51
Pairing Two insulated conductors uniformly twisted together with a lay not exceeding 100mm, Two-pair cables without individual pair screens (quads) shall have four cores laid in quad formation round a central dummy
Colour code See technical information
Individual screen Aluminium/polyester tape is applied over each pair metallic side down in contact with tinned copper drain wire, 0.5mm²
Binder tape Non-hygroscopic binder tape of minimum thickness 0.023 mm
Collective screen Aluminium/polyester tape is applied over the laid up pairs metallic side down in contact with tinned copper drain wire, 0.5mm²
Outer sheath Extruded sheath of a PVC compound conforming to BS EN 50290-2-22:2002, grade TM51
Sheath colour Generally black

Electrical Properties

Temperature range: above 0˚C( fixed installation)
-15˚C to +65˚C(during operation )

Conductor Area Size mm² 0.5 0.5 1.0 1.5 2.5
Conductor Stranding No. x mm 1 x 0.8 16 x 0.2 1 x 1.13 7 x 0.53 7 x 0.67
Conductor resistance max ohm/km 36.8 39.7 18.4 12.3 7.6
Insulation resistance min Individual conductor Gohm/km 5 5 5 5 5
individual screen Mohm/km 1 1 1 1 1
Capacitance unbalance at 1 kHz(pair to pair screen) pF/250m

250

Max. Mutual Capacitance @ 1 kHz for Non OS or OS cables (except one-pair and two-pairs) pF/m 75 75 75 85 105
Max. Mutual Capacitance @ 1 kHz
IS/OS cables (include 1 pair and
2 pair)
pF/m 115 115 115 120 140
Max. L/R Ratio for adjacent cores(Inductance/Resistance) μH/ohm 25 25 25 40 60
Test voltage V 2000 2000 2000 2000 2000
Rated voltage V 300/500 300/500 300/500 300/500 300/500

Parameter

Number of
Pairs
Number and Diameter of Wires Nominal Conductor Cross- Sectional Area Nominal Thickness of Insulation Nominal Thickness of Sheath Nominal Diameter of Cable
no./mm mm² mm mm mm
stranded conductor 0.5 mm² (16/0.20mm)
2 16/0.2 0.5 0.6 0.9 9.7
5 16/0.2 0.5 0.6 1 12.6
10 16/0.2 0.5 0.6 1.2 18
15 16/0.2 0.5 0.6 1.3 20.9
20 16/0.2 0.5 0.6 1.4 23.6
30 16/0.2 0.5 0.6 1.6 28.2
50 16/0.2 0.5 0.6 1.8 36.1
stranded conductor 0.75 mm² (24/0.20mm)
2 24/0.2 0.75 0.6 0.9 10.4
5 24/0.2 0.75 0.6 1 13.5
10 24/0.2 0.75 0.6 1.2 19.4
15 24/0.2 0.75 0.6 1.4 22.8
20 24/0.2 0.75 0.6 1.5 25.8
30 24/0.2 0.75 0.6 1.6 30.5
50 24/0.2 0.75 0.6 1.9 39.3
stranded conductor 1.5 mm² (7/0.53mm)
2 7/0.53 1.5 0.6 1 12.1
5 7/0.53 1.5 0.6 1.1 15.8
10 7/0.53 1.5 0.6 1.4 22.9
15 7/0.53 1.5 0.6 1.5 26.6
20 7/0.53 1.5 0.6 1.6 30.1
30 7/0.53 1.5 0.6 1.8 35.8
50 7/0.53 1.5 0.6 2.2 46.2
stranded conductor 2.5 mm² (7/0.67mm)
2 7/0.67 2.5 0.6 1 13.5
5 7/0.67 2.5 0.6 1.2 17.9
10 7/0.67 2.5 0.6 1.5 25.9
15 7/0.67 2.5 0.6 1.6 30.1
20 7/0.67 2.5 0.6 1.8 34.3
30 7/0.67 2.5 0.6 2 40.8
50 7/0.67 2.5 0.6 2.4 52.6