Japanese standard wire

The Japanese Standard Wire (JIS) is a type of wire used in the automotive industry, primarily in Japan. JIS wire is designed to meet the specifications of the Japanese Automobile Standards Organization (JASO) and is commonly used in vehicles manufactured by Japanese automakers.

JIS wire typically has a thin wall, high flexibility, and resistance to abrasion, heat, and chemicals. These properties make it well-suited for use in automotive wiring harnesses, which are the networks of wires that connect various electrical components in a vehicle. JIS wire is also known for its durability and long life, making it a reliable choice for automotive applications.

Here are some technical specifications of JIS wire:

1. Conductor Material: JIS wire is typically made of copper, which is a good conductor of electricity.
2. Insulation Material: The insulation material used in JIS wire can vary, but it is typically made of a thermoplastic polymer such as polyvinyl chloride (PVC), cross-linked polyethylene (XLPE), or polypropylene (PP). The insulation material provides protection against abrasion, heat, and chemicals.
3. Temperature Rating: The temperature rating of JIS wire typically ranges from -40°C to 105°C, depending on the insulation material used.
4. Voltage Rating: The voltage rating of JIS wire varies depending on the specific application, but it is typically rated for use with low voltage (12V or 24V) electrical systems in automobiles.
5. Sizes: JIS wire comes in various sizes, ranging from 0.5 mm2 to 5.0 mm2, depending on the specific application.
6. Color Coding: JIS wire is typically color-coded for easy identification and installation. The color coding follows a specific standard, with different colors used to indicate different functions, such as power, ground, and signal wires.

In conclusion, JIS wire is a type of wire used in the automotive industry that is designed to meet the specifications of the Japanese Automobile Standards Organization. It is known for its high flexibility, resistance to abrasion, heat, and chemicals, and durability. By understanding the technical specifications of JIS wire, you can choose the right wire for your specific automotive application.

A unit of length (using a millimeter gauge) determined by the Cable Standards Committee of the Japanese Electrotechnical Committee. This unit is commonly used in Japan, and adopted by the Japanese Industrial Standards (JIS) and the Japanese Cable Makers’ Association Standard (JCS).

Conductor Size Tables (Table 1-1-2)

1. Mass is calculated from the specific gravity of annealed copper (8.89).
2. The conductor resistance is the maximum specified value of a single conductor measured at 20℃. For stranded cable, the conductor resistance is multiplied by the stranding factor.
3. When calculating the electric resistance of a conductor of different conductivity, multiply the resistance of silver-plated annealed copper by (100/conductivity).
4. Not all sizes of conductor (plated or alloys) in the table are available. Contact us for available sizes or types not listed in the table or contained in Junkosha’s catalog.
5. In terms of conductor resistance, give priority to any other values defined in individual cable specs (e.g., MIL, UL).