ISO 5867-1:1996 PDF

Name: ISO 5867-1:1996 — Aircraft — Electromagnetic relays and contactors — Part 1: General requirements
SKU: ISO 5867-1:1996
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Aircraft — Electromagnetic relays and contactors — Part 1: General requirements

Название (английский):

ISO 5867-1:1996

Aircraft — Electromagnetic relays and contactors — Part 1: General requirements

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 47
Дата публикации:: 1 февраля 1996 г.
Издание:: ISO IS 5867 edition 1 version 1
ICS:: 49.060

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Описание (английский):

Performance requirements for electromagnetic relays and contactors for use in nominal 28 V d.c. or 115 V/200 V 3-phase, 400 Hz, a.c. systems having the characteristics specified in ISO 1540. Contains the performance requirements for relays and contactors having nominal contact ratings of 5 A a.c., 5 A d.c. or greater.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview - ISO 5867-1:1996 (electromagnetic relays and contactors for aircraft)

ISO 5867-1:1996 specifies general performance requirements for electromagnetic relays and contactors intended for aircraft electrical systems. It covers devices designed for nominal 28 V d.c. or 115 V/200 V 3‑phase, 400 Hz a.c. systems (system characteristics as per ISO 1540) and applies to relays/contactors with nominal contact ratings of 5 A a.c., 5 A d.c. or greater. The standard defines construction, environmental, electrical and mechanical requirements, plus qualification and test principles.

Key topics and technical requirements

Voltage and ratings: Coil operation at 28 V d.c. or 115 V a.c. (400 Hz); contact ratings ≥ 5 A.

Temperature classes: Three classes - Class A (-65 °C to +125 °C), Class B (-55 °C to +85 °C) and Class C (-55 °C to +70 °C).

Sealing/enclosure classes:

Class 1: Hermetically sealed (gas-filled, dew point specified)
Class 2: Environmentally sealed (purged, inert gas recommended)
Class 3: Ventilated enclosures (totally enclosed, explosion-proof, dust protection)

Altitude suitability: Class 1 & 2 up to 25 000 m; Class 3 up to 15 000 m.

Design and materials: Corrosion-resistant metals, restrictions on certain platings for hermetic parts; non‑metals must be moisture‑resistant, flame/arc resistant and non‑toxic.

Terminals and grounding: Threaded studs for >25 A, plug‑in or screw for ≤25 A; terminal seat current density limit 1.55 × 10^6 A/m² (1 000 A/in²); secure grounding provisions and terminal covers/barriers required.

Detail specification sheets: Manufacturers must provide individual spec sheets defining dimensions, terminal markings, dual‑coil relationships and installation/torque values.

Qualification and tests: Product examination, environmental, electrical and mechanical tests and production acceptance/qualification inspections are specified.

Applications and who uses this standard

Aircraft manufacturers and systems integrators for power distribution, switching and control functions.

Avionics and relay/contactors manufacturers designing components for 28 V DC and 115/200 V 400 Hz AC aircraft systems.

Certification engineers, procurement and quality teams validating component compliance and qualification.

Maintenance and repair organizations referencing performance and installation requirements.

Typical applications include flight‑critical switching, auxiliary power circuits, contactor modules for generators/transformers, and general onboard circuit control in commercial and military aircraft.

Related standards

ISO 1540 - Aerospace electrical system characteristics (referenced for system parameters)

ISO 7137 - Aircraft environmental conditions and test procedures

IEC references (IEC 50 (446), IEC 68‑2‑17, IEC 158‑2) are cited for terminology and test methods.

Keywords: ISO 5867-1:1996, electromagnetic relays, contactors, aircraft relays, 28 V DC, 115 V 400 Hz, aerospace electrical standards, hermetic sealing, relay qualification.

ISO 5867-1:1996 PDF

Abstract

Похожие стандарты

Overview - ISO 5867-1:1996 (electromagnetic relays and contactors for aircraft)

Key topics and technical requirements

Applications and who uses this standard

Related standards

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