NFPA-FIRE NFPA-FLUID EEMUA UL CTA AWS
NFPA-FIRE NFPA-FLUID EEMUA UL CTA AWS
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This Practice describes the requirements for design, manufacture, inspection, testing, and shipping of three-phase, liquid-immersed power transformers with a rating of 750 kVA and above.
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This Practice provides requirements for the design and fabrication of two-winding liquid-immersed air-cooled substation power transformers. This Practice describes the requirements for design, manufacture, inspection, testing, and shipping of three-phase, two-winding, liquid-immersed air-cooled substation power transformers with a rating of 500 kVA through 15,000 kVA for use on systems 34.5 kV and below.
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This Practice provides requirements for the design and fabrication of two-winding liquid-immersed air-cooled substation power transformers. This Practice describes the requirements for design, manufacture, inspection, testing, and shipping of three-phase, two-winding, liquid-immersed air-cooled substation power transformers with a rating of 500 kVA through 15,000 kVA for use on systems 34.5 kV and below.
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This Practice provides requirements for the design and fabrication of two-winding liquid-immersed air-cooled substation power transformers. This Practice describes the requirements for design, manufacture, inspection, testing, and shipping of three-phase, two-winding, liquid-immersed air-cooled substation power transformers with a rating of 750 kVA through 10,000 kVA for use on systems 34.5 kV and below.
