The use of power cables has been around for more than a hundred years. In 1879, the American inventor T.A. Edison wrapped jute around a copper rod and put it into the iron pipe, and then filled the asphalt mixture to make a cable. He laid the electric cable in New York and created underground power transmission. Do you know the precautions for cable installation, use and storage? This article tells you the answer.
When installing the electric cable terminal, the semi-conductive shielding layer must be stripped. The insulation should not be damaged during operation. The knife marks and unevenness should be avoided. If necessary, sandpaper should be used for flattening; the shielding end should be flat and the graphite layer should be removed.
The copper shield and steel stern at the end of the plastic insulated cable must be well grounded. This principle should also be followed for short lines to avoid inductive electrical dynamics or even "fire" accidents at the end of the steel stern during unbalanced operation. The grounding lead wire should be soldered with tin-plated braided copper and cable copper strip. It should not be sealed with a blown lamp to avoid burning insulation.
a. The conductor is well connected;
b. Reliable insulation, it is recommended to use radiation cross-linked heat shrinkable silicone rubber insulation material;
c. sealed well;
d. Sufficient mechanical strength to adapt to various operating conditions.
The cable ends must be waterproof and corroded by other corrosive materials to prevent breakdown due to aging of the insulation caused by water.
Cables must be loaded and unloaded by cranes and forklifts. It is forbidden to be transported flat or laid flat. When installing large cables, the cable car should be used to prevent the cables from being damaged by external force or scratching the sheath and insulation layer by manual dragging. If the cable is not installed, it is strictly forbidden to use human hand to make the conductor bend and damage the insulation layer to cause short circuit.Use high quality power tools and electric fittings to avoid risks.
If the power cable cannot be laid in time, it should be stored in a dry place to prevent sunlight exposure and water in the cable end. Please noted that wire and cable installation should be performed by the installer or the full-time technician who is familiar with the performance of the wire and cable. If there are still unclear items, please consult the relevant technical department or our technical department.
Nowadays, with the continuous expansion of the power industry, data communication industry, urban rail transit industry, automobile industry and shipbuilding industry, the demand for wire and cable will also grow rapidly. In the future, the wire and cable industry has great potential for development.
The power product market is very active such as: cable accessories/ electric fittings/electrical insulator/switchgear/, /isolate switch/ surge arrester/fuse cutout/electric power tool.etc. If you are interested in the power industry or power supply products, please contact us in time.
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