Overload, also called "overload." For example, a type of car 4 tons weight over weight of this provision is the "overload", so easy to damage the vehicle. Wire also has its load electricity requirements. Current through the wire causes the wire fever, it would have been normal. But if the overload, a large current through a fine wire, it is easy to cause a fire.
Indoor installation open air, the ambient temperature should not exceed 35c. Selection of wire in the wire carrier safety, the wires are not overheating. However, when used more electricity than the safety of the carrier wire, wire will heat proportional to the square wire heat and current intensity, if the current intensity increased by 2 times, heat will increase 4 times faster than the original, will cause wires overheating, easy cause a fire.
The main reason the wire overload are:
New Line Line Selection is too small, a small section; any increase in the old-line load; fuse improper selection. Fuse election thin, frequent power cuts, is not conducive to supply; fuse rough election, when the fuse overload constantly, cause overheating burned wire insulation, can easily cause fires.
Seven wire maintenance attention matters
Use wire length period, depending on the quality of the cable wire installation environment. Wire insulation depends mainly on the outside layer of the foreskin, over time, by the corrosive gas corrosion, insulation performance decreases, slowly aging hard, brittle or shedding. Wires lose insulating performance is very dangerous if touched two wires together or FireWire things come in contact with the earth, ran electric phenomenon occurs, so that the local electric wire temperature, sparks, causing a fire. So pay attention:
1, the wires do not moisture, heat, corrosion or bumps.
2, the wire used to a certain number of years to pay attention to check and found problems, should be replaced.
3, do not overload the wires.
4, always check the usage of home electrical and wiring, and timely maintenance and repair. 5, the old building of the line, found to be flooded or wet, especially in the line of disrepair aging should happen to be an electrician to repair immediately.
6, to be easily soaked flood line should electrician migration route, take the elevated moisture measures.
7, rain should be immediately cut off the power supply such as a power outage, an electrician check the cause, and send someone to care. More copper cable information is welcomed to inquired from us!