Safety Alert
Use of ICAR Capacitors in uninterruptable power supply (UPS) systems
Use of ICAR Capacitors in uninterruptable power supply (UPS) systems
- HSE
- Safety Alert
- CEMHD1-2019
- Electrical SafetyMachinery and Equipment
- Electrical safetyFire
- Inspection and maintenance
- Downstream and process industriesUpstream oil and gas
Summary
This alert addresses two industrial UPS fires involving overheating ICAR self-healing polypropylene capacitors in 2011 and 2018. It advises dutyholders to consider prompt replacement of affected models and review cooling requirements. Capacitance testing and visible bulging or discolouration may not reliably indicate these capacitors’ remaining service life.
Classifications: Electrical safety; electrical hazards.
Classifications: Fire; fire safety.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Downstream and process industries; refining; petrochemicals.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Summary
Safety alert concerning risks from ICAR capacitors used in uninterruptible power supply systems.
CEMHD1-2019. Themes: electrical safety, machinery and equipment.