-
About UsHongsheng Wire and Cable Co., Ltd. is a key enterprise in Zhejiang Province specializing in the production of wires and cables, integrating industry, commerce, trade, production, education, and research. Its main production, processes, and testing equipment are all designed and configured according to international standards.
-
ProductsEmploy scientific management and quality assurance systems based on GB/T19001—IS09001 and GB/T24001—ISO14001 environmental management systems to organize production management.
-
-
Contact UsWe believe: Great achievements depend on quality. Your satisfaction is our eternal pursuit!
08
2021
-
10
How to judge the quality of power cables? How to choose wires and cables?
In daily life, electric power cables have become indispensable materials for electricity use. Many families choose their wiring by listening to the advice of electricians or consulting salespeople. If we have some understanding of this, we will be more confident in our choices. So, how do we judge the quality of power cables and how do we choose them? Today, let's take a look together.
In daily life Power cables are indispensable materials for electricity use. Many families choose wires based on the advice of electricians or consultations with salespeople. If we have some understanding of this, we will be more confident in our choices. So, how do we judge the quality of power cables and how do we choose them? Today, let's take a look together.
I. Identification Power cables of quality
1) First, check if the weight of the wire and cable is within the specified range. Inferior quality usually means insufficient weight due to insufficient length or excessive impurities in the wire core.
2) Second, check the manufacturer of the wire and cable. Generally speaking, counterfeit products lack a manufacturer, production date, and quality assurance, but some may have vague origin markings such as "Made in China," "Made in a certain province of China," or "Made in a certain city of China." This is essentially equivalent to not indicating the origin.
3) Next, check the copper core of the wire and cable. Poor-quality copper cores are purplish-red, yellow, or white, with many impurities, poor mechanical strength, and poor toughness. They may break under slight force, and internal breakage often occurs.
4) Check the price of the wire and cable. Generally speaking, counterfeit products have low production costs and poor material quality, using the guise of "good quality and low price" to deceive people.
II. How to choose Power cables
The quality of power cables is related to many homes, and many electrical fires are caused by unqualified wires and cables. Therefore, how to choose wires and cables is also a skill. Common insulated wires include polyvinyl chloride, acrylonitrile polyvinyl chloride mixture insulated flexible wires, rubber insulated wires, aluminum core plastic insulated wires directly buried in farmland, polyvinyl chloride insulated nylon sheathed wires, and polyvinyl chloride insulated flexible wires for power and lighting. Choose according to the usage environment.
Power cables The selection should follow the following principles:
(1) The rated voltage is greater than or equal to the rated voltage of the power system at the installation point.
(2) The continuous allowable current of the cable is greater than or equal to the continuous current of the power load.
(3) The cross-section of the wire core meets the stability requirements during short circuits in the power system.
(4) According to the cable length, confirm whether the voltage drop meets the requirements.
(5) The short-circuit current at the end of the line should be able to stabilize the protective device.
(6) The conductor is smooth, and the DC resistance and conductor dimensions meet national standards. Power cables that meet national standards. Whether it is an aluminum conductor or a copper conductor, it is relatively bright, without oil stains, and the DC resistance of the conductor fully meets national standards, with good conductivity and high safety.
When choosing, specifications and quality are two points that need attention. Choose according to the actual situation, don't blindly listen to a certain specification of wire being better, and don't be greedy for cheap prices, because it is easy to buy inferior products. The quality of wires and cables directly affects the safety of household electricity. Choosing a cable suitable for your home is the right choice.
Power cable
Guangzhou Baiyun International Airport
2017-09-13
2017-09-13
2017-09-13
2017-09-13
2017-09-13
2017-09-13
2017-09-13
2021-04-13
Contact Us
Service Hotline
Address: Central Industrial Park, Luqiao District, Taizhou City, Zhejiang Province
Fax: 86-576-82670077
