JB/T 12224-2015Canned motor and pump - Test procedures (English PDF)

National Standard of the People's Republic of China

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Contents

• 1 Scope
• 2 Normative references
• 3 Test requirements
• 3.1 Classification of the tests
• 3.2 Test items
• 3.3 Test apparatus and instruments
• 4 Measurement of the parameters
• 4.1 Measuring requirements
• 4.2 Measurement of the electrical quantities
• 5 Tests on the canned motor
• 5.1 Preparation for the test
• 5.2 No-load test
• 5.3 Thermal test
• 5.4 Locked rotor test
• 5.5 Load test
• 5.6 Determination of the maximum torque
• 6 Tests on the canned motor pump
• 6.1 Hydrostatic test
• 6.2 Air tightness test
• 6.3 Vacuum leakage test
• 6.4 Axial thrust test
• 6.5 Performance test
• 6.6 Cavitation test
• 6.7 Determination of the reverse circulation flow and pressure of a pump with a reverse circulation line pump
• 6.8 Determination of the vibration and the noise
• 6.9 Continuous starting test at low voltage
• Annex A (normative) Tolerance coefficients for mass produced pumps selected with a typical performance curve and for pumps whose canned motor input power is less than 10 kW
• A.1 Mass produced pumps selected with a typical performance curve
• A.2 Pumps whose canned motor input power is less than 10 kW and greater than 1 kW
• A.3 Pumps whose canned motor input power is less than 1 kW
• Annex B (normative) Determination of the reduction of the impeller diameter
• Annex C (normative) Saturated vapour pressure table
• Figure 1 Test apparatus of the water circulation system
• Figure 2 No-load characteristic curve
• Figure 3 Resistance value extrapolation curve