Applies to single-phase and polyphase dry type transformers (including both autotransformers and noncurrent limiting reactors) for supplying energy to power, heating, and lighting circuits.
NEMA ST 20-2021 History
NEMA ST 20-2021
$61.00 $123.00
NEMA ST 20-2014
$45.00 $90.00
More Standards PDF
NACE RP0575-01
$89.00 $179.00
JIS C 2814-1:2001
$27.00 $54.00
JIS E 1101:2001
$67.00 $135.00
JIS H 4463:2002
$16.00 $32.00