IEC 62642-2-2:2010

Overview - IEC 62642-2-2:2010 (SIST IEC 62642-2-2:2024)

IEC 62642-2-2 specifies requirements and test methods for passive infrared (PIR) intrusion detectors used in alarm systems installed in buildings. It defines functional, operational, electrical, environmental and tamper-security requirements and assigns detectors to security grades 1–4 (see IEC 62642-1) and environmental classes I–IV (see IEC 62599-1). The standard requires a detector to meet all criteria of its declared grade.

Key topics and technical requirements

The standard covers the full product lifecycle from design claims to performance verification. Major technical topics include:

• Detection performance - requirements for sensitivity, indication of detection and significant reduction of range.
• Event processing - how detectors generate signals/messages depending on grade and event type.
• Operational behavior - switch-on delay, minimum time interval between intrusion signals, self-test functionality.
• Immunity to incorrect operation - resistance to false alarms from air flow, visible/near-infrared radiation and other environmental disturbances.
• Tamper security - detection of removal, unauthorised access, re-orientation and magnetic interference; masking detection and immunity tests.
• Electrical requirements - current consumption, input voltage range, ripple and response to power loss.
• Environmental classification and testing - assessment according to environmental classes I–IV and associated test procedures.
• Testing and verification - basic detection tests, walk tests (including high-velocity, intermittent and close‑in detection), endurance, and detailed test matrices and annexes (test magnets, target definitions, walk test diagrams).

Practical applications and who uses this standard

IEC 62642-2-2 is used to ensure reliable PIR detector performance in intrusion and hold-up alarm systems for buildings. Typical users include:

• Detector manufacturers - to design and certify PIR products to a declared security grade.
• System integrators and installers - to select detectors appropriate for a site’s grade and environmental class.
• Specifiers and consultants - to write performance-based procurement specifications for commercial, residential and institutional security.
• Certification bodies and test labs - to perform standardized detection, tamper and environmental tests.
• Facility and security managers - to evaluate suitability of detectors for specific installation conditions.

Related standards

• IEC 62642-1 (System requirements / grade definitions)
• IEC 62599-1 (Environmental classes)
• Other parts of the IEC 62642 series (microwave, combined sensors, glass break detectors, control equipment, power supplies and application guidelines)
• Based on EN 50131-2-2 (2004)

Keywords: IEC 62642-2-2, passive infrared detectors, PIR detectors, intrusion alarm standard, security grades, environmental classes, tamper testing, detection performance.