BS EN 60317-67:2017

What is BS EN 60317-67 - Polyvinyl acetal enamelled rectangular aluminium wire about? 

This part of IEC 60317 forms an element of a series of standards that deals with insulated wires used for windings in electrical equipment. The main objective of the BS EN IEC 60317 series is to ensure winding wires offer optimum electric strength and service life, and to minimize risk of product failure. 

BS EN 60317-67 is the 67th part of a multi-series that specifies the requirements of enamelled rectangular aluminium winding wire of class 105 with a sole coating based on Polyvinyl acetal, resin which can be modified providing it retains the chemical identity of the original resin and meets all specified wire requirements. 

NOTE: A modified resin is a resin that has undergone a chemical change, or contains one or more additives to enhance certain performance or application characteristics.  

Who is BS EN 60317-67- Polyvinyl acetal enamelled rectangular aluminium wire for? 

BS EN 60317-67 on particular types of winding wires is relevant to: 

• Manufacturers of winding wires  
• Manufacturers and suppliers of polyvinyl acetal enamelled aluminium wire  
• Manufacturers of electrical equipment   
• Electrical engineers 
• Product design engineers 

Why should you use BS EN 60317-67 - Polyvinyl acetal enamelled rectangular aluminium wire? 

Winding wires are largely used in the construction of applications such as transformers, motors, and generators. The main purpose of a winding wire is to interchange electrical energy with magnetic energy. In the context of BS EN 60317-67, class 105 is a thermal class that requires a minimum temperature index of 105 and a heat shock resistance of at least 155 °C. 

BS EN 60317-67 provides you with the range of nominal conductor diameters based on width and thickness, for two grades of winding wires. Reference standard for test methods to assess properties such as electrical resistance, elongation, and heat shock, amongst others, are also covered. For the assessment of flexibility and adherence, BS EN 60317-67 recommends the mandrel winding test along with dimension specifications for the mandrel. 

Adopting the specifications for the particular type of winding wire in compliance with BS EN 60317-67 can ensure properties such as temperature and heat resistance remain intact for the optimal performance of your specific application. 

This can help make the right production decisions to ensure durability and long service life of polyvinyl acetal enamelled rectangular aluminium wires, to achieve the necessary electrical strength.