Key control points of waterproof line

Key control points of waterproof line

• 2024-12-23 14:15:25
• by Admin

What are the key control points in the process of waterproof wire harness?

In many daily application fields of wire harnesses, such as automobiles, outdoor LED screens, agricultural machinery, and construction machinery, there are situations where they are used in rainy environments.

Therefore, the waterproof performance of wire harnesses is of great importance.

Once the wire harnesses have poor waterproof performance, rainwater infiltration may lead to problems like short circuits and corrosion, which will not only affect the normal operation of the equipment but also may cause potential safety hazards.

So it is crucial to ensure the excellent waterproof performance of wire harnesses.

Select connectors with an advanced waterproof structural design and a waterproof rating greater than or equal to the IPX7 protection level.

The process of wire harness design.

The selection of wire diameter should match the connector.

The wire diameter should not be larger or smaller than the diameter specified by the connector.

(Air Tightness Testing)

The sealing performance testing of waterproof wire harnesses is carried out through an intelligent sealing testing system.

During the testing process, both ends of the wire harness are connected to the corresponding fixtures, and compressed air is then introduced for pressure testing to determine whether the sealing performance is qualified.

The testing standards are as follows:

Testing pressure: 20 KPa;

Inflation time: 10 seconds;

Pressure-holding time: 5 seconds;

Testing time: 10 seconds;

Pressure loss: ≤ 0.05 KPa.

If the pressure loss is less than the specified value within the specified time, it indicates that the sealing performance is good, meeting the requirements of waterproof wire harnesses and the product performance is qualified.

Many factories conduct electrical performance testing, sealing performance testing and appearance inspection on every waterproof wire harness to ensure that the product quality is up to standard.

Only by strictly designing waterproof wire harnesses, purchasing waterproof wire harnesses produced by regular manufacturers, strictly following the production process of waterproof wire harnesses and conducting rigorous and meticulous quality inspections can qualified waterproof wire harnesses be produced.