How to avoid the rust of tinned copper when use photovoltaic cable

Many novice electricians often find that the conductors of photovoltaic cables are yellowed, similar to rust, in the process of cleaning and repairing solar cables , and the conductors of photovoltaic cables are generally made of tinned copper core wires that are twisted. I am curious, how can the conductors of photovoltaic cables be made of oxygen-free copper and tinned to rust? This is generally an overlooked problem in the production process.

Common reasons for yellowing of photovoltaic cable conductors are:

1. The furnace temperature is too high, the fluidity is high, and the pinhole plating causes excessive penetration of copper and tin.

2. The thickness of the tin layer of the tinned copper of the photovoltaic cable conductor is not enough, and the penetration of copper and tin is fast.

3. The halogen of the flux is not cleaned up, and the copper surface is not sufficiently pickled.

4. The packaging time is too fast, the heat does not dissipate, and the impurity tin is too much.

5. The quality of copper material is unqualified, and there are too many heterozygotes.

Because the workers of the manufacturer in order to improve the work efficiency in the production process, the temperature effect of the atomic movement speed of the tin layer of the copper core conductor of the photovoltaic cable is caused. Evenly, how to solve such a problem?

The problem of yellowing of photovoltaic cable conductors is dealt with as follows:

1. The diameter of the tinned copper core wire of the photovoltaic cable conductor copper wire is about +0.02mm;
2. After 2 hours after production, it can be repackaged. (Purpose: Internal heat dissipation)
3. The concentration of good flux and flux is mainly affected by the flux of the flux.
4. Choose better oxygen-free copper wire.

Most of the conductors used in photovoltaic cables are five types of conductors made of tinned copper core wires. The production process of this conductor is relatively high, so it often occurs that the process does not meet the standard and is not found. After the photovoltaic cable has been used for a period of time The conductor turns yellow, this is because the tinned copper core wire is very small, usually ranging from 10 to 30 wires can be twisted into a conductor of a photovoltaic cable, so the production of tinned copper conductors of photovoltaic cables requires very professional workers operate.

Well, the above is the introduction of " How to avoid the rust of tinned copper when use the photovoltaic cable? ", I hope it can help everyone! It is recommended to continue to pay attention to JZD Cable to learn more about photovoltaic cable information.