One of the insulation of the five core cable is broken, excuse me, is it okay to use only the remain

Mineral cable: referred to as MI cable, when used as wiring, it is customary to call it mineral cable or mineral fireproof cable in China. At present, according to the structure, it can be divided into two types: rigid and flexible.

Composition: Mineral insulated cable is composed of copper core, mineral insulating material, copper and other metal sheaths, in addition to having good conductivity, mechanical and physical properties, fire resistance, but also has good non-flammability, this cable can not only ensure the fire power supply during the fire duration in the case of fire, but also will not prolong combustion, do not produce toxic smoke. Pros:

1. Fire resistance: The two materials used in mineral insulated cables, copper and mineral insulation, are inorganic. The cable does not burn or support combustion, and can continue to operate in close proximity to flames.

The copper sheath melts at 1083. 2. High operating temperature: mineral insulated electricity...

Four-core cables are generally used in three-phase power equipment, and three-core phase wires are grounded wires.

Generally, the power distribution system has TN-S, TN-C-S and other system forms, which are also known as three-phase three-wire system, three-phase four-wire system, and three-phase five-wire system in China. According to the distance between the power supply and the load, the type of load, whether there is a common grounding body, safety requirements, cost considerations and other factors, whether to lead the PE wire and the ground wire to the load.

The five-core cable is generally civil, which is a three-phase five-wire system, a three-core phase wire, a core zero wire, and a core grounding wire.

Four-core cable: aluminum-clad symmetrical communication cable is often used in communication engineering, and the digital signal cable is shielded in the railway, with four colors of red, white, purple and green, and four mutually insulated metal wires are twisted together.

Five-core cables are commonly used in three-phase four-wire systems.

The most widely used low-voltage transmission method is the three-phase four-wire system, and the five-core cable is made up of 5 wires that are insulated from each other. A five-core cable is a cable with five cores insulated from each other, and a plastic sheath or steel armor and plastic sheath that wrap these five cores on the outside.

How to use five-core cable, four-core cable, three-core and two-core wire, are you using the right one?

The five-core cable has an additional protective grounding wire.

What does it happen if the 5-core cable is indirectly turned and then the 5 are tied together.

The 5-core cable is indirectly ended, and then the 5 are tied together again will cause what wires are not wild and can be tied together when installed. The reasons are as follows: (1) The electric calendar imitation wires are tied together, especially the multi-strand wires are tied together, which is not conducive to the heat dissipation of the wires, especially the wires in the middle part, and the temperature will be relatively high. (2) The wires are tied together and the temperature rises, resulting in the accelerated aging of wire insulation and shortening the service life of the wire.

3) The wires are tied together, there is no interval in the middle, and when the wire insulation is destroyed, the probability of short circuit failure increases.

Summary. In particular, the heat generation, ignition, and fire caused by arcing caused by unqualified joints. Therefore, we must first understand the hazards of joints, pay attention to the engineering installation and connection of cable and wire joints, strengthen inspection skills and measures, regular inspections, find problems in the first time and deal with them in time, and focus on prevention.

What does it happen if the 5-core cable is indirectly turned and then the 5 are tied together.

Hello dear, your non-standard wiring operation is more dangerous, it is easy to cause failure, resulting in serious consequences of power outages, in addition to the joint is easy to heat up, increase the loss of electric energy, pants resistance group is easy to cause current increase, cause certain harm to electrical equipment, shorten life, etc. Mandarin oranges.

In particular, the disturbance is the fire caused by heating, ignition and arc caused by unqualified joints. Therefore, we must first understand the danger of the joint, pay attention to the engineering installation and connection of cable and wire joints, strengthen the inspection skills and measures, regular inspection, and find the problem of Sun Handan in the first time and deal with it in time, so as to give priority to prevention.