GB/T 21056-2007
ActiveSpecification for adjustable speed drive systems of electricity conservation with VF for fans and pumps
风机、泵类负载变频调速节电传动系统及其应用技术条件
Application Summary AI generated
This standard specifies technical requirements for variable frequency (VF) adjustable speed drive systems used to conserve electricity in fans and pumps. It is applied in industrial and commercial settings where these loads operate, such as HVAC systems, water supply, and process fluid handling, to define performance, safety, and application conditions for energy-saving retrofits or new installations.
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