Product: enameled wire (insulated copper wire) with inner pure copper and surface coating Construction and materials Inner layer: pure copper Surface: insulating paint with polyester patent leather Pack quantity: 1 x enameled wire (500g / 17.6 oz) Electrical and thermal performance Voltage resistance: withstands 3000 V to 5000 V Temperature resistance: 130 to 180 degrees Celsius Key advantages Direct welding capability Resistant to frequency signals Portable and easy to carry Standards and specification notes Color classification shown by the system refers to the wire diameter (specification); the copper wire follows national standard specifications Specification refers to the diameter of the drawn copper wire, i.e., the inner diameter without the paint film Typical applications and use cases Winding coils for transformers, inductors, and small motors where enamelled copper is standard Prototyping and hobby electronics requiring reliable insulation and strong mechanical handling Electrical repairs or DIY projects that may involve direct welding or frequency applications Practical considerations This wire is described by its diameter, with the inner diameter measured before paint coating; select the appropriate specification based on the intended winding or coil design Suitable for applications needing a durable insulation layer and voltage tolerance within the stated temperature range