Caledonian ESI 09-6 l Instrumentation & Control Cables
Constructional & Electrical Performance Data ESI 09-6 Issue 5 Section 2 ?C Induced Voltage Control CableConstruction Type
Conductors
0.80mm Plain annealed copper wire in accordance with BS6360 Class 1.
Insulation
The conductors are insulated with Polyvinyl Chloride Type 02 to BS7655, uniformly twisted together to form a pair with a
maximum lay length of 125mm, and colour coded for identification (See Table 1). Suitable for voltages upto and including
150 Volts (d.c.) and 110 Volts (a.c.)
Cable Formation
2 pair cables are laid up in quad formation.
5 ?C 10 pair cables are laid up in layer formation.
20 ?C 200 pairs cables are laid up in 20 pair units to form the required cable size. A printed number on a longitudinal tape
applied under the binder tape identifies each unit.
Screens
For 2 pair cables the screen comprises of an aluminium foil in contact with a 0.80mm tinned copper drain wire. For 5 pairs and
above the screen comprises of an aluminium tape with a backing that ensures adhesion to the bedding. The tape screen is
applied over a ripcord and in contact with a 0.80mm tinned copper drain wire.
Note: Armoured cables (Generation) always require a collective screen. Types 1 & 2 can incorporate a
screen if required.
Outer Covering
| Type 1 | Unarmoured Multipair Light Current Control cables. Extruded Polyvinyl Chloride sheath to BS7655. |
| Type 2 | Armoured Multipair Light Current Control cables. Extruded Polyvinyl Chloride bedding to BS7655, Galvanised steel wire armour to BS1442 and an extruded Polyvinyl Chloride sheath to BS7655. |
| Type 3 | Armoured Multipair (Generation) Light Current Control cables. Extruded Polyvinyl Chloride bedding to BS7655, Galvanised steel wire armour to BS1442 (2 ?C 10 pair) Galvanised steel tape armour (20 ?C 200 pair) and an extruded Polyvinyl Chloride sheath to BS7655. |
Alternative PVC materials producing lower levels of HCL are available on request.
Electrical Characteristics
| High Voltage Test | |
| Collective screens | 2000 Volts for 1 minute between each conductors & earth 5000 Volts for 1 minute between all conductors & earth |
| Cables without screen | 10 000 Volts (ac) for 1 minute between each conductor & earth 15 000 Volts (ac) for 1 minute between all conductors bunched & earth |
| Conductor Resistance | 73.60Ohm/Km Loop @ 20??C (Max) |
| Insulation Resistance | 80 Mohm/Km @ 20??C (Min) |
| Capacitance Unbalance | |
| 2 Pair above 2 Pair |
800 pF/500 mtrs @ 1 kHz (Max) 400 pF/500 mtrs @ 1 kHz (Max) |
| Mutual Capacitance | Mutual Capacitance |
| Mutual Inductance | 915 ??H/500 mtrs @ 1 kHz (Max) |
Type 1 cables ( Unarmored, Induced voltages up to 5kV)
| Number of pairs | Nominal diameter of conductor mm | Insulation radial thickness mm | Sheath radial thickness (Min) mm | Overall diameter (Nom) mm | Cable weight (Nom) Kg/Km |
|---|---|---|---|---|---|
| 2 | 0.80 | 0.30 | 0.80 | 5.10 | 40 |
| 5 | 0.80 | 0.30 | 1.00 | 8.50 | 100 |
| 10 | 0.80 | 0.30 | 1.10 | 10.90 | 170 |
| 20 | 0.80 | 0.30 | 1.20 | 14.40 | 280 |
| 40 | 0.80 | 0.30 | 1.40 | 22.90 | 600 |
| 60 | 0.80 | 0.30 | 1.60 | 25.90 | 880 |
| 100 | 0.80 | 0.30 | 1.90 | 32.60 | 1440 |
| 200 | 0.80 | 0.30 | 2.20 | 46.00 | 2780 |
The dimensions given above are for cables with collective screens.
Table 1 Identification of pairs
Two-pair cables are cabled in quad formation and colour coded as follows:
White, red, blue & orange.
| Pair Number | Pair Colour | Pair Number | Pair Colour |
| 1 | White/Blue | 11 | Black/Blue |
| 2 | White/Orange | 12 | Black/Orange |
| 3 | White/Green | 13 | Black/Green |
| 4 | White/Brown | 14 | Black/Brown |
| 5 | White/Grey | 15 | Black/Grey |
| 6 | Red/Blue | 16 | Yellow/Blue |
| 7 | Red/Orange | 17 | Yellow/Orange |
| 8 | Red/Green | 18 | Yellow/Green |
| 9 | Red/Brown | 19 | Yellow/Brown |
| 10 | Red/Grey | 20 | Yellow/Grey |
* Denotes the nominated pair designed for use at carrier frequencies in the range 12 ?C 108 kHz.
Type 2 cables (Armoured)
| Number of pairs | Nominal diameter of conductor mm | Insulation radial thickness mm | Bedding radial thickness mm | Diameter of armour wire mm | Sheath radial thickness (Nom) mm | Overall diameter (Nom) mm | Cable weight (Nom) Kg/Km |
|---|---|---|---|---|---|---|---|
| 2 | 0.80 | 0.30 | 0.80 | 0.90 | 1.30 | 9.50 | 200 |
| 5 | 0.80 | 0.30 | 1.00 | 0.90 | 1.40 | 13.10 | 290 |
| 10 | 0.80 | 0.30 | 1.10 | 1.25 | 1.50 | 16.40 | 540 |
| 20 | 0.80 | 0.30 | 1.20 | 1.25 | 1.60 | 20.10 | 770 |
| 40 | 0.80 | 0.30 | 1.40 | 1.60 | 1.80 | 29.70 | 1430 |
| 60 | 0.80 | 0.30 | 1.60 | 1.60 | 2.00 | 33.10 | 1900 |
| 100 | 0.80 | 0.30 | 1.90 | 2.00 | 2.20 | 41.00 | 3010 |
| 200 | 0.80 | 0.30 | 2.20 | 2.20 | 2.50 | 56.00 | 5660 |
The dimensions given above are for cables with collective screens.
Table 1 Identification of pairs
Two-pair cables are cabled in quad formation and colour coded as follows:
White, red, blue & orange.
| Pair Number | Pair Colour | Pair Number | Pair Colour |
| 1 | White/Blue | 11 | Black/Blue |
| 2 | White/Orange | 12 | Black/Orange |
| 3 | White/Green | 13 | Black/Green |
| 4 | White/Brown | 14 | Black/Brown |
| 5 | White/Grey | 15 | Black/Grey |
| 6 | Red/Blue | 16 | Yellow/Blue |
| 7 | Red/Orange | 17 | Yellow/Orange |
| 8 | Red/Green | 18 | Yellow/Green |
| 9 | Red/Brown | 19 | Yellow/Brown |
| 10 | Red/Grey | 20 | Yellow/Grey |
* Denotes the nominated pair designed for use at carrier frequencies in the range 12 ?C 108 kHz.
Type 3 cables (Generation)
| Number of pairs | Nominal diameter of conductor mm | Insulation radial thickness mm | Bedding radial thickness mm | Diameter of armour wire mm | Diameter of steel tape mm | Sheath radial thickness (Nom) mm | Overall diameter (Nom) mm | Cable weight (Nom) Kg/Km |
|---|---|---|---|---|---|---|---|---|
| 2 | 0.80 | 0.30 | 1.50 | 0.90 | - | 1.90 | 12.10 | 300 |
| 5 | 0.80 | 0.30 | 1.50 | 0.90 | - | 2.00 | 15.30 | 450 |
| 10 | 0.80 | 0.30 | 1.50 | 1.25 | - | 2.20 | 18.60 | 730 |
| 20 | 0.80 | 0.30 | 1.50 | - | 0.50 | 2.40 | 21.80 | 930 |
| 40 | 0.80 | 0.30 | 2.00 | - | 0.50 | 2.80 | 31.70 | 1570 |
| 60 | 0.80 | 0.30 | 2.60 | - | 0.50 | 3.10 | 36.10 | 2120 |
| 100 | 0.80 | 0.30 | 2.60 | - | 0.50 | 3.10 | 42.20 | 2850 |
| 200 | 0.80 | 0.30 | 3.00 | - | 0.50 | 3.80 | 57.20 | 4860 |
The dimensions given above are for cables with collective screens.
Table 1 Identification of pairs
Two-pair cables are cabled in quad formation and colour coded as follows:
White, red, blue & orange.
| Pair Number | Pair Colour | Pair Number | Pair Colour |
| 1 | White/Blue | 11 | Black/Blue |
| 2 | White/Orange | 12 | Black/Orange |
| 3 | White/Green | 13 | Black/Green |
| 4 | White/Brown | 14 | Black/Brown |
| 5 | White/Grey | 15 | Black/Grey |
| 6 | Red/Blue | 16 | Yellow/Blue |
| 7 | Red/Orange | 17 | Yellow/Orange |
| 8 | Red/Green | 18 | Yellow/Green |
| 9 | Red/Brown | 19 | Yellow/Brown |
| 10 | Red/Grey | 20 | Yellow/Grey |
* Denotes the nominated pair designed for use at carrier frequencies in the range 12 ?C 108 kHz.