Def.Standards 61-12 Instrumentation Cables & Control Cables
Defence Standard Signal Types A, C, D & S
Application
Originally developed for military use, Defence standard cables are designed for connection with ground, sea and air borne instrumentsand electronic equipment. They offer compact sizing, high working voltage and a large range of sizes both civil and military fields for high quality obust interconnection Cables. Robust and economical choice which can also be over sheathed or armoured for direct burial or duct installation.
N.B.: These Cables are not intended for use as power cables and must not be used for the direct connection of equipment to the main power supply.
All these cables are manufactured generally in accordance with the Defence Standard, however some sizes are not listed in the Standard but are supplied based on commercial demand.
Standards
To 61.12 Part 4 17/0.20To 61.12 Part 5 16/0.20
Normally packed on 100m, 500m or 1000m spools, cables can also be cut to length when required.
Colour charts for colour codes up to 36 cores:
Technical Information
| Voltage | 440V Rms up to 1600Hz | |
|---|---|---|
| Temperature Range | 0??C to +70??C | |
| Current Rating | 0.22 mmsq: 1 amp | 0.5 mmsq: 2.5 amps |
| Nominal Conductor Max. Resistance @ 20??C | 0.22 mmsq: 92 ??/Km | 0.5 mmsq: 40.1 ??/Km |
| Bending Radius (Static) | 7.5 x Cable diameter | |
Construction Type
Unscreened type A
| Conductor | Flexible tinned annealed copper |
|---|---|
| Insulation | PVC |
| Binder | PETP Transparent Tape |
| Sheath | PVC |
| Duct grade versions have a heavy duty Black LDPE sheath. |
Screened type C
| Conductor | Flexible tinned annealed copper |
|---|---|
| Insulation | PVC |
| Binder | PETP Transparent Tape |
| Screen | Tinned Copper Wire Braid (a minimum fill factor of 0.7) |
| Sheath | PVC black to form circular cable |
| Screened type 'S' has an overall Aluminium foil screen and tinned copper drain wire. |