1 Scope
This standard specifies the energy efficiency grades minimum allowable values of energy efficiency, evaluating values of energy conservation, test methods, inspection rules and energy efficiency grade identification of waste submersible motor-pumps.
This standard is applicable to single-phase or three-phase waste submersible motor-pumps (hereinafter referred to as "motor-umps") that transport all kinds of sewage or mixed liquids containing insoluble solids such as silt, fiber, feces and river mud fertilizer.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (apply to inspection of process stability)
GB/T 12785-2014 Test methods for submersible motor-pumps
GB/T 24674 Waste submersible motor-pumps
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 24674 and the following apply.
3.1
minimum allowable values of energy efficiency for waste submersible motor-pumps
minimum allowable values of energy efficiency for waste submersible motor-pumps under the specified test conditions
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3.2
energy efficiency grades for waste submersible motor-pumps
a grading method for indicating the energy efficiency of waste submersible motor-pumps, which is determined according to the efficiency value of waste submersible motor-pumps, and divided into three grades: 1, 2 and 3, with Grade 1 indicating the highest energy efficiency
3.3
evaluating values of energy conservation for waste submersible motor-pumps
minimum allowable values of energy efficiency for energy-conservation waste submersible motor-pumps under the specified test conditions
3.4
rated energy efficiency grades
energy efficiency grades for waste submersible motor-pumps marked by the manufacturer according to this standard when the waste submersible motor-pumps leave the factory
4 Basic requirements
The types, basic parameters and technical requirements of motor-pumps shall meet the requirements of GB/T 24674.
5 Energy efficiency grade
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Basic requirements
5 Energy efficiency grade
6 Minimum allowable values of energy efficiency
7 Evaluating values of energy conservation
8 Test methods
9 Inspection rules
10 Energy efficiency grade identification
