SIST EN 60255-21-2:2001

Electrical relays -- Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment -- Section 2: Shock and bump tests

This standard includes two types of tests: -the shock test (on energized and non-energized specimen), -the bump test (on non-energized specimen). These requirements are applicable only to measuring relays and protection equipment in a new condition.

Elektrische Relais -- Teil 21: Schwing-, Schock-, Dauerschock- und Erdbebenprüfungen an Meßrelais und Schutzeinrichtungen -- Hauptabschnitt 2: Schock- und Dauerschockprüfungen

Relais électriques -- Partie 21: Essais de vibrations, de chocs, de secousses et de tenue aux séismes applicables aux relais de mesure et aux dispositifs de protection -- Section 2: Essais de chocs et de secousses

Cette norme comprend deux types d'essais: - l'essai de choc (sur spécimen alimenté ou non alimenté); - l'essai de secousses (sur spécimen non alimenté). Ces spécifications sont applicables seulement à des relais de mesure ou des dispositifs de protection à l'état neuf.

Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 2: Shock and bump tests

General Information

• Status: Published
• Publication Date: 31-Aug-2001
• ICS: 29.120.70 - Relays
• Technical Committee: ETC - Electrotechnical technical committe
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2001
• Due Date: 01-Sep-2001
• Completion Date: 01-Sep-2001
• Ref Project: EN 60255-21-2:1995 - Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 2: Shock and bump tests

Overview

EN 60255-21-2:1995 (CLC) is a European standard, part of the EN 60255 series, that specifies shock and bump tests for measuring relays and protection equipment. It forms Section 2 of Part 21, which collectively addresses vibration, shock, bump and seismic tests. The standard covers two types of tests: the shock test (applicable to both energized and non‑energized specimens) and the bump test (applicable to non‑energized specimens). Requirements apply only to relays and protection devices in a new condition.

Key Topics

• Scope and applicability
  • Applies specifically to measuring relays and protection equipment.
  • Tests are intended for devices in a new (unaged) state.
• Test types
  • Shock test: performed on both energized and non‑energized specimens to evaluate resistance to sudden high‑acceleration impacts.
  • Bump test: performed on non‑energized specimens to assess response to repeated small impacts.
• Performance criteria
  • Ensures that mechanical integrity and functional performance are maintained after shocks and bumps.
  • Defines test procedures, specimen conditioning, and acceptance checks (functional/visual inspection and electrical operation).
• Test setup and instrumentation
  • Outlines mounting, orientation and monitoring requirements to ensure repeatable test conditions and valid results.
• Documentation
  • Emphasizes recording test conditions and outcomes for compliance and traceability.

Applications

EN 60255-21-2 is used where reliable relay operation under shock and bump conditions is critical. Typical users and applications include:

• Protection relay manufacturers - for design validation and type testing to demonstrate mechanical robustness.
• Independent testing laboratories - to perform standardized shock and bump certification.
• Power utilities and substation engineers - to specify procurement requirements that ensure equipment reliability under transport, handling or fault conditions.
• Quality assurance and compliance teams - to verify that new relays meet European test expectations before installation.

Related Standards

• EN 60255 series (electrical relays) - Part 21 covers vibration, shock, bump and seismic tests as a group.
• National adoptions of EN 60255-21-2 (identified by local standards bodies) may exist; users should check the latest regional versions or amendments.

Keywords: EN 60255-21-2, shock and bump tests, measuring relays, protection equipment, electrical relays standard, relay testing, CLC, vibration shock bump.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2001
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring
relays and protection equipment - Section 2: Shock and bump tests
Electrical relays -- Part 21: Vibration, shock, bump and seismic tests on measuring relays
and protection equipment -- Section 2: Shock and bump tests
Elektrische Relais -- Teil 21: Schwing-, Schock-, Dauerschock- und Erdbebenprüfungen
an Meßrelais und Schutzeinrichtungen -- Hauptabschnitt 2: Schock- und
Dauerschockprüfungen
Relais électriques -- Partie 21: Essais de vibrations, de chocs, de secousses et de tenue
aux séismes applicables aux relais de mesure et aux dispositifs de protection -- Section
2: Essais de chocs et de secousses
Ta slovenski standard je istoveten z: EN 60255-21-2:1995
ICS:
29.120.70 Releji Relays
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
...