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prEN 3475-805 Public enquiry
Comment end date 2025-08-07
Aerospace series - Cables, electrical, aircraft use - Test methods - Part 805: Characteristic impedance

This document specifies methods for measuring the characteristic impedance of a cable and is based on EN 50289-1-11.

prEN 6049-007 Public enquiry
Comment end date 2025-07-22
Aerospace series - Electrical cables, installation - Protection sleeve in meta-aramid fibres - Part 007: Self-wrapping mechanical and electrical protective sleeve, flexible post installation operating temperature from -55 °C to 260 °C - Product standard

This document specifies the characteristics of post installation flexible self-wrapping protection sleeves for electrical cable and cable bundles made from meta-aramid fibres and provided with a water repellent protection for aerospace application. This self-wrapping protection sleeve can be also used as an electrical protection under specified conditions. (115 VAC/400 Hz, 15 A max. per conductor — as per test EN 6059-502).

prEN 4529-003 Public enquiry
Comment end date 2025-07-08
Aerospace series - Elements of electrical and optical connection - Sealing plugs - Part 003: Class T - Product standard

This document specifies the required characteristics of sealing plugs, class T, for use in elements of electrical and optical connection containing cable (wire) sealing grommets, according to EN 4529-002. It is used together with EN 4529-001.

prEN 3475-701 Public enquiry
Comment end date 2025-07-08
Aerospace series - Cables, electrical, aircraft use - Test methods - Part 701: Strippability and adherence of insulation to the conductor

This document specifies methods of measuring the strippability and adherence of the insulation to a conductor of a finished cable. When a particular method is not specified in the detail product specification, method A is the default test method. Method B is suitable for wires insulated with materials showing a low adhesion to the conductor due to the poor repeatability of the test method A with this type of wires. It is intended to be used together with EN 3475 100.

prEN 3475-812 Public enquiry
Comment end date 2025-07-08
Aerospace series - Cables, electrical, aircraft use - Test methods - Part 812: Return loss (VSWR)

This document specifies methods for measuring return loss respectively voltage standing wave ratio (VSWR), in the required frequency range of coaxial cables. The return loss is used for quantifying the level of the reflected signal due to an impedance mismatch between the cable and the reference impedance and due to structural variations of the impedance along the cable. It is intended to be used together with EN 3475 100 and EN 50289 1 11. NOTE In particular, correction procedures detailed in EN 50289 1 11:2016, Annex B are important to minimize negative effects of cable preparation in the purpose of high frequency range measurements.

prEN 3475-804 Public enquiry
Comment end date 2025-07-03
Aerospace series - Cables, electrical, aircraft use - Test methods - Part 804: Velocity of propagation

This document specifies a method for measuring the velocity of propagation of a cable.

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