GB/T 33432-2016Basic requirements for wires of all-terrain vehicles (English PDF)

3.1 Wires

Conductor, terminal, and connector assemblies for connecting electric parts of ATVs. The wires include main, branch, embranchment point, juncture, terminal, etc.

3.2 Main

The portion of the wires in which two or more conductors are bundled together.

3.3 Branch

The portion of the wires in which the end of conductor is not wrapped or a single conductor.

4.7 Insulation withstand voltage performance

Non-interconnected conductor terminals can withstand the test of a 50 Hz, 550 V sinusoidal waveform voltage for 1 min. The insulation shall not be broken down.

4.8 Water immersion test

The wires, after the water immersion test, shall meet the requirements of 4.5.

4.9 Temperature variation test

The wires, after the temperature variation test, shall meet the requirements of 4.5.

4.10 Vibration test

After the wires are subjected to the vibration test, the insulation wrapping shall not be loose. The requirements of 4.3, 4.4, and 4.5 shall be met.

4.11 Salt spray test

The wires, after the salt spray test, shall meet the requirements of 4.5.

4.12 Solvent test

The wires, after the solvent test, shall meet the requirements of 4.5.

4.13 Flame-retardant property

The burning flame of wires' insulating material shall be extinguished within 70 s.

5.1 Test environmental conditions

The test environmental conditions are as follows.

- Test temperature 18 °C~28 °C;

- Relative humidity 45%~75%;

- Atmospheric pressure 86 kPa~106 kPa.

5.2 Wires appearance, conductor color and diameter

USE visual inspection and Vernier caliper inspection. It shall meet the requirements of 4.1~4.4.

5.3 Test of tensile strength of terminal

The sample to be tested shall be sampled on the actual product. The length of the sample piece shall guarantee the minimum length fixed to the tensile testing machine. The range of tensile testing machine shall be determined according to the need. The indication error shall be no more than ±1%. The fixture for the sample piece shall be moved at a uniform speed. The moving speed of the fixture is a constant value in the range of 25 mm/min~120 mm/min. For the tensile test of the connection between the conductor and the terminal and of the juncture, along the axis of the conductor, the tensile force shall be applied.

5.4 Insulation withstand voltage test

It shall be carried out in accordance with the requirements of 4.8 of QC/T 413-2002.

5.5 Water immersion test

The wires are completely immersed in water for 1 h and then taken out. It is allowed to wipe dry the water stain on the surface of wires. Then the test of 4.5 is repeated.

5.6 Temperature variation test

It shall be carried out in accordance with the method specified in 4.10 of QC/T 413-2002.

5.7 Vibration test

It shall be carried out in accordance with the method specified in 4.12 of QC/T 413-2002.

5.8 Salt spray test

It shall be carried out in accordance with the method specified in 4.13 of QC/T 413-2002.

5.9 Solvent test

3 or more solvents such as brake fluid, antifreeze, engine oil, gasoline, and glass cleaner are mixed in equal proportions. After immersing the wires in the above liquid for 20 h, the wires are taken out from the liquid. The surface is wiped; and exposed to air for 30 min. Then the test of 4.5 is repeated. […]

5.10 Flame-retardant property