21/30439898 DC

This standard 21/30439898 DC BS EN 4708-204. Aerospace series. Sleeves, heat-shrinkable, for binding, insulation and identification is classified in these ICS categories:

• 49.060 Aerospace electric equipment and systems

This document specifies the required characteristics for heat-shrinkable limited fire hazard identification sleeves for use in aircraft electrical systems at operating temperatures between −30 °C and 105 °C.

This document is for the characterization of identification sleeves only. This sleeving is flexible, flame retarded and emits minimum smoke, gases and corrosive by-products when exposed to fire. It is suitable for use in areas where smoke, gases or corrosive by-products would constitute a particular hazard.

It is available with a shrink ratio of 2:1.

The product is normally supplied with internal diameters up to 51 mm.

The standard colours are white or yellow.

Sizes or colours other than those specifically listed in this document can be available. These items are considered to comply with this standard if they comply with the property requirements listed in Tables 2 and 3 except for dimensions and mass.

As the sleeving to be tested is a printed article, the complete system is to be recorded as part of the evaluation. The sleeve will only be considered as meeting the requirements of this specification if printed with the printer, ribbon, inks and settings referenced within the test report.

Mark adherence and print permanence are determined in this specification using method EN 6059‑407 .