BS/EN 4612-012-2019 pdf download.Aerospace series — Cables, electrical, for general purpose, single and multicore assembly — XLETFE Family — Jacketed or screened and jacketed
Part 012: Nickel plated copper — Operating temperatures, between 65 °C and 150 °C — Dual extruded wall for open applications, with jacket and screen (braid) — UV laser printable — Product standard.
This BS/EN 4612-012 specifies the characteristics of LIV laser printable jacket, nickel plated copper conductor, electrical cables crosslinked ethylene tetra fluoro ethylene co-polymer (XLETFE) family for use in the on- board electrical systems of aircraft at operating temperatures between — 65 °C and 150 °C, operating at voltages not exceeding 600 V rms. This insulation system has been used in aerospace applications using 115 V (phase-to-neutral) 400 Hz ac and 28 Vdc. Verification of the suitability of cables for use on other electrical systems is the responsibility of the user.
These cables are suitable for airframe use without additional protection. In case of conflict between this document and other referenced documents the requirements of this document shall take precedence.
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 2083, Aerospace series — Copper or copper alloy conductors for electrical cables — Product standard
EN 2235, Aerospace series — Single and multicore electrical cables screened and jacketed — Technical specification’)
EN 3475 (all parts), Aerospace series — Cables. electrical, aircraft use — Test methods
EN 4611-007, Aerospace series — Cables, electrical, for general purpose, single and multi core assembly — XLETFE Family — Part 007: Nickel plated copper — Opera rin9 temperatures, between -65 ec and 150 °C — Dual extruded wall for open applications — UV laser printable — Product standard
EN 4612-002, Aerospace series — Cables, electrical, for general purpose, single and multicore assembly — XLETFE Family — lacketed or screened and jacketed — Part 002: Generalt)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 3475-100 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at http://www.iso.org/obp
• IEC Electropedia: available at http://www.electropedia.org/
4 Materials and construction
4.1 Materials
These cables shall consist of the following:
• cores according to EN 461 1-007;
• number of cores I (one) to 4 (four).
2 (two) core to 4 (four) core shall be twisted together according to EN 2235.
Filler cores shall not be permitted.
Screen:
• nickel plated copper stranded woven screen;
• for dimensions of strands, see Table 1;
• material according to EN 2083, tests according to EN 3475-100;
• construction according to EN 2235.
Outer jacket:
• XLETFE:
• it shall be possible to mark the jacket by UV laser printing.
4.2 Construction
See Table 1.BS/EN 4612-012-2019 pdf download.