• IEEE C57.12.20-2017

IEEE C57.12.20-2017

  • IEEE Standard for Overhead-Type Distribution Transformers 500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 79
  • standard by IEEE, 11/30/2017
  • Category: IEEE

$77.00 $39.00

Revision Standard - Active.Certain electrical, dimensional, and mechanical characteristics and safety features of single- and three-phase, 60 Hz, liquid-immersed, self-cooled, overhead-type distribution transformers 500 kVA and smaller, high voltages 34 500 V and below, and low voltages 7970/13 800Y V and below are covered in this standard.
PDF

All of our standards document are available in PDF (Portable Document Format), an electronic, downloadable format.You will be able to download the file in your account downloads.

Multi-User Access

After purchasing, you have the ability to assign each license to a specific user.

Printable

At any time, you are permitted to make printed copies for your and your members' reference use.

SMPTE RP 45-1972

SMPTE RP 45-1972

Use and Care of Sound Test Films (R1987)..

$25.00 $50.00

SMPTE EG 13-1986

SMPTE EG 13-1986

Use of Audio Magnetic Test Films (R2002)..

$25.00 $50.00

SMPTE RP 148-1987

SMPTE RP 148-1987

Relative Polarity of Stereo Audio Signals (R2004)..

$25.00 $50.00

SMPTE RP 27.2-1989 (Archived 2004)

SMPTE RP 27.2-1989 (Archived 2004)

Specifications for Operational Registration Test Pattern for Multiple-Channel Television Cameras..

$25.00 $50.00