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Power cables are cables used to transmit and distribute electric energy, which are commonly used in urban underground power grids, power station lead lines, internal power supply of industrial and mining enterprises and underground transmission lines
across rivers and seawaters.
Power cable is a cable product used to transmit and distribute high-power power in the backbone line of the power system, including 1-500KV and above various voltage levels, various insulated power cables
.
The control cable is suitable for polyvinyl chloride insulation, PVC sheathed control cable
used in industrial and mining enterprises, energy and transportation departments, control and protection lines with AC rated voltage below 450/750 volts, etc.
The structure of the two is similar, but the use is very different, and it is necessary to distinguish carefully when using
.
To distinguish power cables and control cables, pay attention to the following points:
1.
Look at the rated voltage
.
The rated voltage of power cables is generally 0.
6/1kV and above, and the control cable is mainly 450/750V
.
2.
Look at the insulation and sheath thickness
.
When the power cable and control cable of the same specification are produced, the insulation and sheath thickness of the power cable is thicker
than that of the control cable.
3.
Look at the implementation standards
on the cable line.
Control cables belong to electrical equipment cables, and power cables are two of the five categories of
cables.
The standard for power cables is GB12706, the standard for control cables is GB/T 9330, and flame retardant cables should also meet the technical conditions
of IEC337-8 standards.
4.
Look at the color of
the insulated core.
The insulated wire sleeve of each inner core of the low-voltage power cable is generally color separation; The color of the insulated core of the control cable is generally black and white
.
5.
Look at the
cable section.
Power cables are mainly used to transmit electricity, generally with a large cross-section, and the cross-section of the control cable generally does not exceed 10 square meters
.
The specifications of power cables can generally be large, as large as 500 square meters (the range that conventional manufacturers can produce); The cross-section of the control cable is generally small, and the maximum is generally not more than 10 square meters
.
6.
Look at the number of
cable cores.
In terms of the number of cable cores, power cables according to the requirements of the power grid, up to 5 cores, and control cables for transmission control signals, the number of cores is more, according to the standard there are more 61 cores, but it can also be produced according to user requirements
.
Power cables are cables used to transmit and distribute electric energy, which are commonly used in urban underground power grids, power station lead lines, internal power supply of industrial and mining enterprises and underground transmission lines
across rivers and seawaters.
Power cable is a cable product used to transmit and distribute high-power power in the backbone line of the power system, including 1-500KV and above various voltage levels, various insulated power cables
.
The control cable is suitable for polyvinyl chloride insulation, PVC sheathed control cable
used in industrial and mining enterprises, energy and transportation departments, control and protection lines with AC rated voltage below 450/750 volts, etc.
The structure of the two is similar, but the use is very different, and it is necessary to distinguish carefully when using
.
To distinguish power cables and control cables, pay attention to the following points:
1.
Look at the rated voltage
.
The rated voltage of power cables is generally 0.
6/1kV and above, and the control cable is mainly 450/750V
.
2.
Look at the insulation and sheath thickness
.
When the power cable and control cable of the same specification are produced, the insulation and sheath thickness of the power cable is thicker
than that of the control cable.
3.
Look at the implementation standards
on the cable line.
Control cables belong to electrical equipment cables, and power cables are two of the five categories of
cables.
The standard for power cables is GB12706, the standard for control cables is GB/T 9330, and flame retardant cables should also meet the technical conditions
of IEC337-8 standards.
4.
Look at the color of
the insulated core.
The insulated wire sleeve of each inner core of the low-voltage power cable is generally color separation; The color of the insulated core of the control cable is generally black and white
.
5.
Look at the
cable section.
Power cables are mainly used to transmit electricity, generally with a large cross-section, and the cross-section of the control cable generally does not exceed 10 square meters
.
The specifications of power cables can generally be large, as large as 500 square meters (the range that conventional manufacturers can produce); The cross-section of the control cable is generally small, and the maximum is generally not more than 10 square meters
.
6.
Look at the number of
cable cores.
In terms of the number of cable cores, power cables according to the requirements of the power grid, up to 5 cores, and control cables for transmission control signals, the number of cores is more, according to the standard there are more 61 cores, but it can also be produced according to user requirements
.
