This document specifies the characteristics of UV laser printable electrical lightweight wires DR family for use in the on-board up to 115 V (phase to neutral) or 200 V (phase to phase) AC and 28 Vdc and electrical systems of aircraft at operating temperatures between - 65 °C and 260 °C. These cables are demonstrated to be arc resistant in sizes AWG 26 to 14 (115/200 Vac). In addition, these cables may be suitable for use up to 230/400 Vac in pressurised zones only when installed to take account of possible short circuit effects. Other electrical system configurations is the responsibility of the users.