STN - Slovak standards

Meracie relé a ochranné zariadenia. Časť 27: Požiadavky na bezpečnosť výrobku (Norma na priame používanie ako STN). (Platnosť do 30.4.2028).

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Electrical relays - Testing and measurement - Part 27: Electrical contact noise

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Electrical relays - Tests and measurement - Part 28: Thermoelectric electromotive force (e.m.f.)

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Electrical relays - Tests and measurements - Part 29: Capacitance

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Electrical relays - Tests and measurements - Part 30: Contact sticking (delayed release)

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Electrical relays - Tests and measurements - Part 31: Magnetic remanence

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Electrical relays - Tests and measurements - Part 32: Acoustic noise

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Electrical relays - Tests and measurements - Part 33: Continuity of protective earthing connection

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Electrical relays - Tests and measurements - Part 34: Fluid contamination

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Electrical relays - Tests and measurements - Part 35: Resistance to cleaning solvents

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