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Junction Box Mould Good Performance
- Jun 12, 2017 -

Junction Box Mould Three-phase four-wire DT electrical junction box, also called Watt-hour junction box. Watt-hour junction box is the special junction box in the standard wiring of the electric energy metering device, which is used for wiring and safety protection. Junction Box Mould Through the transparent dust-proof cover can directly observe the internal components and terminal status, conductive body and wiring screws are selected H62 copper, surface nickel-plated. The circuit connection is reliable, the insulating box material is good in heat resistance and impact resistant, and the electrical clearance and creepage distance are higher than the national standard.

You may have a situation where the connector terminals are often faulted during use, for example: As a result of coating peeling, corrosion, touch, Junction Box Mould plastic shell flying edge, rupture, contact parts processing rough, deformation and other causes of poor appearance, because the location of the lock with the size of the poor, processing quality consistency, the total separation force too large and other reasons such as bad exchange. Bubbling for you analysis Terminal Terminal common fatal failure form has the following points:

1. Bad contact: The wire terminal inside the metal conductor is the core of the terminal, it will power, signal, etc. to the other parts of the contact. Junction Box Mould The metal conductor inside the terminal must have good conduction performance. If the contact design is unreasonable, material selection error, size substandard, or electroplating layer treatment improperly, will cause connector terminals contact bad.

2. Fixed bad: terminal terminals need to be fixed in a certain position to achieve a stable connection. Sometimes careless installation is imperfect, or product durability is limited such as the number of plug-and-pull too many, resulting in a fixed bad, light impact contact reliability caused by instantaneous power failure, serious is the product disintegration. Disintegration is the terminal in the state of the plug, due to material, design, technology and other reasons caused by the unreliable structure of the plug and socket, between the plug and the hole between the abnormal separation, will cause control system power transmission and signal control of the serious consequences of interruption. Due to unreliable design, wrong selection, improper molding process selection, heat treatment, mold, assembly, welding and other process quality is poor, assembly is not in place, etc. will cause a fixed bad.

3. Poor insulation: The role of the insulator is to keep the contact parts in the correct position, and make contact parts and contacts between the contact and the shell to insulate each other. Therefore, the insulation must have excellent electrical properties, mechanical properties and process molding performance. In particular, with the high density, miniaturization of terminal terminals widely used, the effective wall thickness of the insulator is thinner. This is more stringent requirements for insulating materials, injection mold precision and molding process. Due to the presence of metal residues on the surface or inside of the insulator, surface dust, Junction Box Mould flux and other pollution damp, organic material precipitates and harmful gas adsorption membrane and surface water membrane fusion to form ionic conductive channel, absorb moisture, long mold, insulation material aging and other reasons, will cause short-circuit, leakage, breakdown, insulation and low insulation resistance phenomenon. Junction Box Mould The failure of any terminals will lead to the failure of the whole system engineering, therefore, Junction Box Mould everyone in the use of the process should try to avoid the above mentioned several of these may lead to failure of the wire terminals, so that terminals more durable.