BS/EN 4681-005-2019 pdf download.Aerospace series — Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 005: AZ family, single, for use in low pressure atmosphere – Product standard.
This BS/EN 4681-005 specifies the characteristics of electrical wires AZ family for use in the on board:
— 115 V (phase to neutral) or 200 V (phase to phase) electrical network of aircraft.
— 230 V (phase to neutral) or 400 V (phase to phase) electrical network of aircraft and particularly use in non-pressurized areas.
This cable family is used at operating temperature between — 65 °C and 180 °C.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 3475-100, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 100: General 1)
EN 3719, Aerospace series — Aluminium or aluminium alloy conductors for electrical cables — Product standard
EN 3838, Aerospace series Requirements and tests on user-applied markings on aircraft electrical cables
EN 4681-001, Aerospace series — Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium — Part 001: Technical specification
EN 4681-002, Aerospace series — Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium — Part 002: General
EN 9133, Aerospace series — Quality Management Systems — Qualification Procedure for Aerospace Standard Products
TR 6058. Aerospace series — Cable code identification list 2)
3 Terms, definitions and symbols
For the purposes of this document, the terms, definitions and symbols given in EN 3475-100 apply.
ISO and EEC maintain terminological databases for use in standardization at the following addresses:
IEC Electropedia: available at http://www.electropediaorg/
4 Materials and construction
4.1 Materials
Conductor:
These cable conductors shall be made of:
— Nickel plated aluminium alloy (code D) according to EN 3719 for 280 to 850 section codes.
Insulation:
All size codes shall be defined to satisfy all required characteristics of Clause 5.
The use of foamed insulation material is forbidden.
To minimize partial discharges effect:
— size and number of cavities (gas trap) inside the insulation shall be as low as possible.
— at minimum bend radius there shall be no wrinkles outside the insulation (EN 3475405).
Minimum bend radius shall be in accordance with bending diameter given in Table 4 of the technical specification EN 4681-001.
4.2 Construction
See EN 3719 and Table 1.BS/EN 4681-005-2019 pdf download.