Explosion gets safety message across

摘要

THE NSW Chapter of The National Electrical Switchboard Manufacturers Association (NESMA) demonstrated the destructive effects of arcing at its recent seminar presentation when it deliberately introduced excessive faults of up to 50 kA into the assembly at the Ausgrid Testing and Certification facility in Lane Cove. The demonstration followed an address by Norman Disney & Young Director Rowan Peck on proposed changes to the AS/NZS 3439 series of standards for electrical switchgear assemblies, which are in the process of being updated to align with the new IEC parent standard series 61439 and to bring local standards more closely into line with the latest world standards.