Control cables are PVC-insulated and PVC-sheathed control cables suitable for industrial and mining enterprises, energy and transportation departments, and for control and protection circuits with a rated AC voltage below 450/750 volts.

In the past few decades, the productivity formed by my country's cable manufacturing industry has impressed the world. With the continuous expansion of the scale of my country's electric power industry, rail transit industry, data communication industry, automobile industry and mines, the control of control The demand for cables is also increasing year by year, making control cables have a lot of space in the cable industry.

The conductor of the control cable is easily broken during the process of cabling and extrusion due to its small cross-section. Regarding the way to find the broken line, the general practice of the cable factory is to use the capacitance comparison method to find the approximate location of the broken line, and then use the method of continuous power-on to find the exact broken line. This way of searching is very inefficient. It takes 1 to 2 hours to find the cable; for the cable that has completed the shielding, armoring, and sheathing processes, it is difficult to find the broken core by this method, which often results in the scrapping of the entire cable. Use the following methods to find, convenient and fast.

1. The combination of capacitance method and induction method This method is suitable for the broken core of the cable core. It is required that the cable core is not covered with a metal layer (such as shielding layer, armor layer, etc.), and there is no extruded sheath. The search method is to first find the approximate position of the disconnection by using the capacitance comparison method, and then use the induced voltage method to accurately find the disconnection point.

The induced voltage method is to connect one end of the broken core with 600V AC voltage, the other end of the broken core and other cores are grounded, and use an induction pen that can emit sound and light signals to test. When the sensor pen slides over the broken core, its acousto-optic signal will change significantly, so that the broken line can be accurately found.

2. Combination of constant current source and bridge method This method is suitable for all types of broken cores in principle, but is generally used for finished cables or cable cores that have been coated with metal layers. The search method is to first use a constant current source to burn and break down the insulation at the broken core, and then use the bridge method fault locator to accurately locate the fault point.

Huafeng is a professional brake cable supplier in China. We produce universal brake cable, parking brake cable and automobile control cables for various models. If you are interested, you can contact us and we can send you samples!

Control cables are PVC-insulated and PVC-sheathed control cables suitable for industrial and mining enterprises, energy and transportation departments, and for control and protection circuits with a rated AC voltage below 450/750 volts.

In the past few decades, the productivity formed by my country's cable manufacturing industry has impressed the world. With the continuous expansion of the scale of my country's electric power industry, rail transit industry, data communication industry, automobile industry and mines, the control of control The demand for cables is also increasing year by year, making control cables have a lot of space in the cable industry.

The conductor of the control cable is easily broken during the process of cabling and extrusion due to its small cross-section. Regarding the way to find the broken line, the general practice of the cable factory is to use the capacitance comparison method to find the approximate location of the broken line, and then use the method of continuous power-on to find the exact broken line. This way of searching is very inefficient. It takes 1 to 2 hours to find the cable; for the cable that has completed the shielding, armoring, and sheathing processes, it is difficult to find the broken core by this method, which often results in the scrapping of the entire cable. Use the following methods to find, convenient and fast.

1. The combination of capacitance method and induction method This method is suitable for the broken core of the cable core. It is required that the cable core is not covered with a metal layer (such as shielding layer, armor layer, etc.), and there is no extruded sheath. The search method is to first find the approximate position of the disconnection by using the capacitance comparison method, and then use the induced voltage method to accurately find the disconnection point.

The induced voltage method is to connect one end of the broken core with 600V AC voltage, the other end of the broken core and other cores are grounded, and use an induction pen that can emit sound and light signals to test. When the sensor pen slides over the broken core, its acousto-optic signal will change significantly, so that the broken line can be accurately found.

2. Combination of constant current source and bridge method This method is suitable for all types of broken cores in principle, but is generally used for finished cables or cable cores that have been coated with metal layers. The search method is to first use a constant current source to burn and break down the insulation at the broken core, and then use the bridge method fault locator to accurately locate the fault point.

Huafeng is a professional brake cable supplier in China. We produce universal brake cable, parking brake cable and automobile control cables for various models. If you are interested, you can contact us and we can send you samples!