Why is the street lamp on all night, but it will trip at five o'clock in the morning when the power is about to cut off?

The street lamp is powered on all night, but the power is cut off at five o'clock in the morning and may trip for the following reasons:

1. Power grid load is too large: 5 am is the time when people get up, go to work and go to school, and the power grid load will gradually increase. If the street lamp load reaches the peak at the same time as other electrical equipment, the power grid may not be able to bear too much load, resulting in tripping.

2. Aging or damage of wires: The wires of street lamps may be aging or damaged, and problems such as short circuit and poor contact will occur after long-term use, resulting in excessive current and triggering fuse tripping.

3. Street lamp equipment failure: Street lamp equipment may fail, such as circuit board damage, light bulb burning, etc. These faults may lead to abnormal current and trip.

4. Weather factors: Generally, it will dawn after five o'clock in the morning. At this time, the weather may change, such as thunderstorms and strong winds, which may lead to abnormal power systems and tripping.

In order to solve this problem, the following measures can be taken:

1. Strengthen power grid management: rationally plan and manage the power grid to ensure that the power grid can withstand the load demand of street lamps and other equipment and avoid tripping due to excessive load.

2. Regular inspection and maintenance: Regular inspection and maintenance of street lamp equipment, timely replacement of aging or damaged wires, circuit boards, light bulbs, etc. To ensure the normal operation of the equipment.

3. Strengthen lightning protection measures: strengthen the lightning protection of street lamp equipment, install lightning rod and grounding device to reduce the impact of lightning on power system.

4. Improve the quality of equipment: select street lamp equipment with reliable quality to ensure the stability and durability of the equipment and reduce the possibility of failure.

In a word, the street lamp can be powered on all night, but when the power is about to be cut off at five o'clock in the morning, the reasons for tripping may be excessive power grid load, aging or damage of wires, street lamp equipment failure and weather factors. By strengthening power grid management, regular inspection and maintenance, strengthening lightning protection measures and improving equipment quality, the occurrence of tripping can be reduced and the normal operation of street lamps can be ensured.