Electrical & electronic apparatus
Contactors, switches, relays, breakers, transformers, arresters, insulators and limiters.
DC electrical resistance
DC resistance check of coils and resistors of contactors, relays and switches per DSTU 2773-94 (GOST 9219-95).
Operation of pneumatically driven apparatus
Operation, tightness and strength check of electro-pneumatic contactors and valves per DSTU 2773-94 (clauses 8.1, 8.3, 8.5).
Insulation resistance and dielectric strength
Insulation resistance and dielectric strength per DSTU 2773-94 (clauses 8.6, 8.7), SOU 45.020-00034045-002:2006 and the railway automation apparatus procedure (GOST 34012-2016).
Switching capacity
Switching-capacity testing of contactors, relays and switches and check of pick-up/drop-out current (voltage) per DSTU 2773-94 (clauses 8.10, 8.3).
Mechanical effects: vibration, shock, resonant frequencies
Resonant-frequency determination, vibration endurance/strength and mechanical-shock tests per GOST 30630.1.2-99, DSTU EN 60068-2-6:2022 and DSTU EN 60068-2-27:2022.
Climatic effects
Upper/lower temperature, humidity, frost and dew exposure per DSTU 8280:2015 and DSTU EN 60068-2-2/2-14/2-78 — service-condition resistance assessment.
IP protection degree (DSTU EN 60529:2018)
Enclosure IP protection-degree testing of relays, switches, valves and converters per DSTU EN 60529:2018 and DSTU IEC 60529:2019.