1970AS/NZS 61558.2.8:2011/AMD 1:2012 Safety of power transformers, power supply units and similar - Particular requirements for bell and chime transformers
0000 AS/NZS 61558.2.8:2011(R2012)
2011AS/NZS 61558.2.8:2011 Safety of Power Transformers, Power Supplies, Reactors and combinations thereof, Part 2.8: Particular requirements and tests for transformers and power supply units for bells and chimes
2001AS/NZS 61558.2.8:2001 Safety of power transformers, power supply units and similar - Particular requirements for bell and chime transformers (IEC 61558-2-8:1998, IDT)