BS EN IEC 60051-5:2018

What is BS EN IEC 60051‑5- Phase meters, power factor meters, and synchroscopes about? 

BS EN IEC 60051‑5 is a safety standard on direct acting indicating electrical measuring instruments and accessories. 

BS EN IEC 60051‑5 applies to direct acting indicating phase meters, power factor meters and synchroscopes having an analogue display. BS EN IEC 60051‑5 also applies to non-interchangeable accessories (as defined in 3.1.23 of IEC 60051-1:2016) used with phase meters, power factor meters, and synchroscopes. 

BS EN IEC 60051‑5 also applies to a phase meter or power factor meter whose scale marks do not correspond directly to its electrical input quantity, provided that the relationship between them is known. 

Who is BS EN IEC 60051‑5- Phase meters, power factor meters, and synchroscopes for?  

BS EN IEC 60051‑5 on special requirements for phase meters, power factor meters and synchroscopes is relevant to: 

• Manufacturers of phase meters, power factor meters, and synchroscopes 
• Testing authorities 
• Manufacturers of multifunction calibrators 
• Electromagnetic engineers 
• Electrical engineers 
• Electricians 

Why should you use BS EN IEC 60051‑5- Phase meters, power factor meters, and synchroscopes? 

IEC 60051 is published in separate parts under the general title direct acting indicating analogue electrical measuring instruments and their accessories.  

BS EN IEC 60051‑5 provides unique requirements for phase meters, power factor meters, and synchroscopes. BS EN IEC 60051‑5 is not complete and is read in conjunction with IEC 60051-1. BS EN IEC 60051‑5 assists the user with the electrical safety requirements. 

Overall, BS EN IEC 60051‑5 is useful as it assists with direct acting indicating analogue electrical measuring instruments and their accessories especially hase meters, power factor meters and synchroscopes which can help you in your business. It provides guidance with all the safety measures that you need to take. 

What’s changed since the last update? 

BS EN IEC 60051‑5:2018 supersedes BS 89‑5:1990, which is withdrawn. BS EN IEC 60051‑5:2018 replaces the fourth edition published in 1985. BS EN IEC 60051‑5:2018 constitutes a technical revision. 

BS EN IEC 60051‑5:2018 includes the following significant technical changes with respect to the previous edition: 

• Updating content in line with new editions of IEC 60051-1 and IEC 60051-9 
• Addition of Annex A to specify the nonconformity classification of test items