High-voltage PECS used in petrochemical and offshore applications. Key Safety Requirements
One of its most significant contributions is the introduction of arc-fault rating labels and testing procedures for PECS, drawing from existing switchgear standards.
The standard establishes a common terminology and minimum requirements to mitigate several critical hazards:
Official, full versions of the standard are not legally available for free download. You can obtain a legitimate copy through the following providers: EVS-EN IEC 62477-2:2018 - evs.ee
Adjustable speed electrical power drive systems (PDS).
While IEC 62477-1 provides general safety requirements for lower voltages (up to 1,000 V AC), extends these rules to high-voltage environments. It applies to various systems, including:
Requirements for enclosures, liquid/air cooling systems, fire hazard mitigation, and protection against rotating parts.
Standalone uninterruptible power supplies (UPS) and stabilized DC power supplies.