MODUK DEF STAN 61-012: PART 26 PDF

This standard specifies requirements for airframe wires and cables in temperature category 135 °C, with medium and thin wall insulation. This insulation system has been tested for use in aerospace applications using 115 volts (phase to neutral), 400 Hertz AC and 28 volts DC. Verification of the suitability of this product for use in other electrical system configuration levels is the responsibility of the user.

These wires and cables are suitable for fixed wiring at temperatures from 135 °C maximum down to minus 75 °C but are not suitable for severe flexing at temperatures below minus 40 °C.

These wires and cables do not support combustion and will withstand contamination by ester-based lubricants and by ester based hydraulic fluids.

The thick wall insulated wires and cables, types 2 and 3, are normally available where dimensional replacements for those wires and cables listed in BS 2G 221 (withdrawn standard, informative only) are required for wiring without further protection.

The thin wall insulated wires and cables, types 8 and 9, are intended for internal wiring of equipment.

Historic cables meeting the requirements of Defence Standard 61-012 Pt 26 have not been tested for compliance with Defence Standard 07-247 and are therefore prohibited from use in submarines and ships. Future design requirements shall give consideration to tests detailed in DS 07-247 and if those tests are not viable, then agreement shall be sought from Authority that they will not be completed. Agreement shall be provided in writing from the appropriate Authority.