8) This describes the essential skills and knowledge and their level, required for this unit. Evidence shall show that knowledge has been acquired of safe working practices and placing and connecting coils. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01-EG151A Electrical winding and connections Evidence shall show an understanding of electrical winding and connections to an extent indicated by the following aspects: T1 Winding wires. Types of winding wires. Winding wire varnishes. Varnish temperature ratings. Varnish removal methods. Types of varnish. Air drying Baking Epoxy Dangers relating to handling Methods of application. Brush. Spray. Dip. Trickle. Measuring wires. Gauge. Micrometer.` T2 Applications of winding wires Solenoid Stator windings Armature windings. Transformer windings Induction coils. T3 Methods of winding wire connection Conductor preparation. Joining methods – soft soldering Types of soldering irons and tips Types of solder Fluxes: purpose; types; dangers Soldering process Inspection Hard soldering - Silver soldering Advantages Types of silver soldering wire Types of flux Operation and safe working procedures with the oxy acetylene welding torch Preparation of join Silver soldering process and inspection Fusing Advantages Preparation of join Fusing process Safe working procedures T4 Insulation methods. T5 Basic techniques in insulating coils for electrical static and rotating machines. Methods of insulating coils. Types of insulation used. Precautions. T6 Coil types. Universal motor field coils (single phase); Distributed concentric coil group (single phase/three phase); Distributed “D” or mush shape coil group (three phase); Distributed round end (three phase); Distributed diamond shape coil group wound as individual coils (three phase) T7 Basic techniques in placing coils for electrical static and rotating machines Record data Manufacture for universal field coils Coil finishing: insertion into slots; taping (where applicable); connection for correct polarity Electrical testing |