130 class enameled round copper wire or thick paint film polyurethane enameled round copper wire (QB-2/130) belongs to the enameled wire under the winding wire classification. 

Certification: ISO9001, CCC, RoHS, SGS
Shape: Round WireInsulation 
Level: C, H, F, B
Wire diameter: 0.025-4.5mm

High quality 130 Class Enameled Wire Colored Round Copper Alloy Manganin from China, China's leading enamel magnet wire product, with strict quality control enameled insulation.

What is difference between insulated copper wire and copper wire?
The primary difference between insulated copper wire and copper wire lies in the presence of an insulating material around the conductor. Let's break down the distinctions:
Copper Wire:
Bare Copper Wire: This refers to copper wire that does not have any form of insulation or coating. It is simply a solid or stranded copper conductor without any added materials.
Applications: Bare copper wire is often used in applications where insulation is not necessary, such as grounding wires or in situations where the wire will be housed within conduits.

Insulated Copper Wire:
Description: Insulated copper wire, also known as covered copper wire or simply insulated wire, has a layer of insulating material surrounding the copper conductor.
Insulation Types: The insulation can be made of various materials, including plastics like PVC (Polyvinyl Chloride), PE (Polyethylene), or other synthetic materials. The choice of insulation material depends on factors such as the intended use, temperature requirements, and environmental conditions.
Applications: Insulated copper wire is widely used in electrical and electronic applications where preventing contact between conductors or protecting against external environmental factors is crucial. It is commonly found in power cables, wiring for appliances, and various electrical devices.

Key Points:
Purpose: The primary purpose of insulation is to provide electrical separation between conductors and protect against short circuits. Insulation also contributes to the mechanical strength and durability of the wire.

Variety: There are different types of insulated copper wire with varying insulation materials, thicknesses, and temperature ratings. The choice of insulation depends on the specific requirements of the application.

Common Usage: In most household wiring and electrical systems, insulated copper wire is the norm due to safety and regulatory requirements. It is essential for preventing electrical shocks and maintaining the integrity of the electrical system.

In summary, while both insulated copper wire and bare copper wire consist of a copper conductor, the presence or absence of insulation makes a significant difference in their applications and use cases. The choice between the two depends on the specific requirements of the electrical system or device in which the wire is being used.

Previous：Copper rectangular wires sizes
Next：Insulated enamel copper magnet wire for miniature motor