BS EN 3475-706-2005 (2006) PDF

Full title and description

STB BS EN 3475-706-2005 (2006) — Aerospace series — Cables, electrical, aircraft use — Test methods — Part 706: Laser markability. This part specifies a test method to establish the ultraviolet (UV) laser marking performance of aerospace electrical wires and cables when used with UV laser wire marking systems (referenced to TR 4543 and EN 3475-100 for related requirements and general test procedures).

Abstract

This standard defines procedures and acceptance criteria for assessing the quality and permanence of UV laser markings on aircraft electrical wires and cables. It covers test conditions, laser types and parameters (typically pulsed UV lasers such as frequency-tripled Nd:YAG at 355 nm), specimen preparation, marking procedures and inspection/measurement methods used to evaluate mark contrast, adhesion and legibility under representative environmental and handling conditions. The intent is to ensure reliable wire/cable identification for maintenance and safety throughout service life.

General information

• Status: Published / national adoptions available (published as EN 3475-706:2005 with national versions such as BS EN 3475-706:2005).
• Publication date: EN date October 2005; national adoptions published in 2006 (example: BS EN 3475-706:2005 published 10 February 2006).
• Publisher: CEN (European Committee for Standardization); national standards bodies adopt as national standards (example: BSI for BS EN, DIN/AFNOR for national editions).
• ICS / categories: 49.060 — Aerospace electric equipment and systems.
• Edition / version: EN 3475-706:2005 (adopted as national variants in 2006); designation commonly shown as BS EN 3475-706:2005 for the UK adoption.
• Number of pages: National publication listings vary (examples show 9–21 pages depending on national format); common listings indicate roughly 9–12 pages for the core EN text while some national print editions include national forewords and reach up to ~21 pages.

Scope

Specifies a test method to determine UV laser markability of aerospace wire and cable materials and constructions. The scope includes recommended laser types and parameters, sample preparation, marking procedures, and test/inspection methods required to assess mark quality (contrast, legibility, adhesion and durability). It is intended for use with UV laser wire marking systems employed for aircraft wiring identification and complements EN 3475-100 (general test methods) and relevant technical reports (e.g., TR 4543).

Key topics and requirements

• Definition of test specimens and sample preparation for wire and cable constructions.
• Recommended UV laser types and typical operating parameters (e.g., 355 nm pulsed UV lasers, pulse lengths and energy settings suitable for aerospace materials).
• Marking procedure guidelines to obtain reproducible marks while minimising damage to insulation or conductor.
• Inspection and measurement methods for evaluating mark contrast, legibility and permanence.
• Acceptance criteria and pass/fail principles for laser marks under specified test conditions.
• Reference to EN 3475-100 and TR 4543 for general test methods and UV laser wire marking system requirements.

Typical use and users

Used by aerospace manufacturers, wiring harness assemblers, aircraft maintenance organisations, avionics suppliers, test laboratories and procurement/specification engineers. Typical applications include qualifying cable products for compatibility with UV laser marking systems, establishing marking process parameters for production, and verifying that marks meet long-term legibility and durability needs for airframe wiring identification.

Related standards

EN 3475 series (other parts addressing general test methods and measurement techniques), EN 3475-100 (general test methods for aerospace cables), TR 4543 (UV laser wire marking systems for aircraft identification), and national adoptions such as BS EN 3475-706:2005, DIN EN 3475-706 and other translated/national versions. These documents are commonly referenced together when specifying laser marking acceptance for aircraft wiring.

Keywords

EN 3475-706, BS EN 3475-706, aerospace cables, wire marking, laser markability, UV laser, 355 nm, wire identification, test methods, TR 4543, EN 3475-100, ICS 49.060.

FAQ

Q: What is this standard?

A: EN 3475-706:2005 (adopted nationally as BS EN 3475-706:2005 and other national variants) is a test-method standard that defines how to assess ultraviolet (UV) laser markability of aerospace electrical wires and cables used for aircraft wiring identification.

Q: What does it cover?

A: It covers specimen preparation, suitable UV laser types and parameters, marking procedures, and inspection/measurement methods to evaluate mark contrast, legibility, adhesion and durability. The standard establishes test conditions and acceptance practices to ensure reliable marking for maintenance and safety.

Q: Who typically uses it?

A: Aerospace OEMs, wiring harness manufacturers, avionics suppliers, test laboratories, quality and procurement engineers, and maintenance organisations use this standard when qualifying cable products and marking processes for aircraft.

Q: Is it current or superseded?

A: The document is published as EN 3475-706:2005 with national adoptions in 2006. Users should check with their national standards body or current standards databases to confirm whether a later revision, amendment or withdrawal has occurred since publication. Published national listings and catalogue entries indicate the 2005/2006 edition as the definitive text.

Q: Is it part of a series?

A: Yes — it is part of the EN 3475 aerospace series (test methods for cables and wires). Related parts include EN 3475-100 (general test methods) and other part numbers addressing specific tests and measurement methods.

Q: What are the key keywords?

A: Laser markability, UV laser marking, aerospace wire, cable test methods, EN 3475-706, BS EN adoption, TR 4543, 355 nm laser, wire identification.