BS EN 62058-21:2010

What is BS EN 62058-21 –Acceptance inspection for electromechanical meters about? 

Electricity metering equipment is used to measure the flow of electricity over a time interval.

BS EN 62058 is a series of standards that discusses acceptance inspection of electricity metering equipment.

BS EN 62058-21 is the 21st part of the IEC 62058 series that  specifies particular requirements for acceptance inspection of newly manufactured direct connected or transformer operated electromechanical meters for active energy (classes .,5, 1 and 2) delivered in lots in quantities above 50.

Who is BS EN 62058-21 - Acceptance inspection for electromechanical meters for? 

BS EN 62058-21 on general acceptance inspection for electromechanical meters is relevant to: 

• Electromechanical device manufacturersand purchasers
• Power distribution and transmission companies
• Local authorities
• Inspection authorities
• Regulatory bodies
• Engineers

Why should you use BS EN 62058-21- Acceptance inspection for electromechanical meters?

The process described herein is primarily intended for acceptance inspection between the manufacturer and the purchaser.

BS EN 62058-21 walks you through the test conditions, inspection procedure and criteria for lot acceptance, non-acceptance, and disposal of unacceptable lots.

The tests included as a part of the inspection procedure include:

• Test No. 1: AC voltage test
• Test No. 2: Test of no-load condition
• Test No. 3: Starting
• Tests No. 4 to 9: Accuracy tests
• Test No. 10: Verification of the register

If you are a purchaser, by adopting BS EN 62058-21-compliant acceptance inspection guidance, you can determine whether the electromechanical meters meet the required technical and performance standards and if they are fit for purpose. This can ultimately enhance your quality control practices.