Elinker Electric successfully developed the latest pluggable terminal block LZ1FM-5.0/5.08, which terminals attached to the pluggable terminal block series. Its biggest advantage is the unique design of rubber sleeve, which successfully solved the problem of terminals in use much dust intrusion. This series can be used with LC1M, LC2M, LC3M, LC4M, LC5M, LC6M and so on many plugs together.

Problem analysis of pluggable terminals:

: Causing blackened problem

1, current is too large;

2, oxidation.

How can you tell from what causes it? Our approach is rubbed with fingers, if you erase, as well as ash, black substance that is formed by oxidation, with Emery paper or buff can be rubbed off.

II: causes high temperature problem

There are two possibilities: Terminal contact resistance caused by loose, thus overheating; Terminal is not loose, but the circuit overcurrent fever due to some unknown reason, such as the power supply voltage is too high, or load short circuit.

1, the voltage is too high. Can be checked from the source, the transformer secondary voltage-voltage-voltage electrical equipment in the distribution box.

2, and Earth faults. Also can check up from the transformer and then to the distribution box earthing. The ground to ground, whereas the normal phase you should exclude earth fault. Insulating sheet or the megohmmeter to measure during the blackout, segmented measure, try sectional measurement cables, wiring, circuit breakers, switches and other electrical lines, it will be difficult circumstances of sub-paragraph, the fuse unplug electronic equipment and sensor equipment.

Grounding the grounding resistance is the key to low, while larger contact area. Former can guarantee ground point has a near ground potential, as low as possible "zero voltage", which you can think of can be avoided after Thunder and lightning grounding cable from the "cross-dressing" go back and into the possibility of power supply circuit. Which ensures that there is sufficient capacity to provide a fault current channel, including lightning or fault, and so on. Because the actual construction process theory is based on contemporary technologies and technology changes, so this is no good, a good grounding line, remains to be seen how the specifications for the new standard requirements.