AEC is an American famous defense contractor with total assets exceeding 40 billion US dollars, serving all aspects of American energy, aerospace, military and industry. In 2003, AEC officially entered the Chinese market, dedicated to the promotion and development of intelligent distribution products in the domestic market. At present, AEC provides the following full range of products in the Chinese market: AEC intelligent distribution meter, AEC low-voltage motor protection controller, AEC5100 multi-loop monitoring unit, AEC5500 multi-loop monitoring unit, AEC comprehensive protection control unit and more.
GB 50052‑95 is a mandatory Chinese standard that specifies design requirements for electric power supply and distribution systems up to 110 kV. It covers load classification, system voltage selection, grounding, power quality, and compensation measures.
The document includes detailed clauses on load grading, emergency power sources, voltage deviation limits, and reactive power compensation, providing guidance for engineers designing new or expanded power distribution projects. This manual is written in Chinese.
| Applicable voltage range | 110 kV and below |
|---|---|
| Emergency power source options | Generator set, dedicated feeder line, battery, fuel cell |
The standard applies to electric power supply and distribution systems with a design voltage of 110 kV or lower.
The standard permits independent generator sets, dedicated feeder lines, batteries, and fuel cells as emergency power sources.