BS/EN 4708-105-2019 pdf download.Aerospace series – Sleeving, heat-shrinkable, for binding, insulation and identification
Part 105: Semi-flexible polyvinylidene fluoride (PVDF) – Temperature range —55 °C to 150 °C — Product standard.
This BS/EN 4708-105 specifies the required characteristics for a heat-shrinkable, semi-flexible polyvinylidene sleeving for use in aircraft electrical systems at operating temperatures between —55°C and 150°C. This sleeving Is basically transparent, but may be tinted. It is semi-flexible tough and abrasion resistant, and is suitable for use where strain relief and mechanical protection are required, or where their transparent properties are desirable.
It is not suitable for use where contamination from phosphate ester based hydraulic fluid is possible. These sleevings are normally supplied with internal diameters up to 25,4 mm for shrink ratios of 2:1.
Sizes other than those specifically listed in this standard may be available. These items shall be considered to comply with this standard if they comply with the property requirements listed in Tables 2. 3 and 4 except for dimensions and mass.
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 3909, Aerospace series — Test fluids and test methods for electrical and optical components and sub-assemblies
EN 4708-001, Aerospace series — Sleeving, heat-shrinkable, for binding, insulation and identification Part 001: Technical specification
IEC 60684-1, Flexible insulating sleeving — Part 1: Definitions and general requirements 1)
IEC 60684-2, Flexible insulating sleeving — Part 2: Methods of test I)
IEC 60757, Code for designation of colours’)
ISO 846, Plastics — Evaluation of the action of micro-organisms 2)
ISO 1817, Rubber, vulcanized — Determination of the effect of liquids 2)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60684-1 apply.
ISO and JEC maintain terminological databases for use in standardization at the following addresses:
Any abbreviation for colour shall comply with I EC 60757. Where no abbreviation is given, the colour shall
be written in full.
7 Labelling and packaging
See KN 4708-001.
8 Technical specification
See EN 4708-001.BS/EN 4708-105-2019 pdf download.