Specifies requirements for (pole-mounted or ground-mounted) oil-immersed power transformers of size up to and including 500 kVA and intended for operation at nominal voltages not exceeding 33 kV.
PIESA 1006-2004 history
2005PIESA 1006-2004 Distribution transformers of size up to and including 500 kVA and operating at nominal voltages not exceeding 33 kV