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The Top500-Lexicon

The lexicon of the top500 ( The Encyclopedia for Classification Codes ) explains the codes and definitions in the world of economical classifications.

NAICS Code 221121 Electric Bulk Power Transmission and Control

The NAICS Code 221121 is described as
Electric Bulk Power Transmission and Control
  • Electric power control
  • Electric power transmission systems
  • Transmission of electric power

This U.S. industry comprises establishments primarily engaged in operating electric power transmission systems and/or controlling (i.e., regulatory voltage) the transmission of electricity from the generating source to distribution centers or other electric utilities. The transmission system includes lines and transformer stations.

Establishments primarily engaged in-
· Generating electric energy-are classified in Industry 22111, Electric Power Generation; and
· Distributing electricity to final consumers-are classified in U.S. Industry 221122, Electric Power Distribution.


It belongs to the code group
NAICS Code 22112 Electric Power Transmission, Control, and Distribution

To this Code "221121" belongs the sub codes
(No direct sub codes available)

The equivalent ISIC Code (Rev. 3.1) is
4010: Production, collection and distribution of electricity
  Production, collecte et distribution d'électricité

The nearest NACE Code (Rev. 1.1) is
40.11: Elektrizitätserzeugung - Elektrizitätserzeugung
40.11: Production of electricity - Production of electricity
40.11: Production d'électricité
40.11: Produzione di energia elettrica
40.11: Producción de energía eléctrica
40.11: Productie van elektriciteit
40.11: Produktion af elektricitet

The equivalent CPC Code (Rev. 1.1) is
xxxx: No Code defined

Translation of the Code description
221121: Electric Bulk Power Transmission and Control

Alternative Spellings (synonyms): Powere, Transmissionen, Powers, Transmissions, Controls
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