Nowadays, the application of wire and cable is more and more widespread, and the types of wire and cable sold on the market are also more and more. So, how to distinguish wire and cable is a national standard product or non-standard product?

Qingdao National standard cable manufacturers believe that it refers to the production of wires in full accordance with the national standard, the general household, common wires are standard specification performance, national standard wire. Non-standard wires refer to cables and wires for specific purposes that do not belong to the specifications and performance specified in national standards, but they should also meet the general requirements in terms of safety and quality performance.



At present, the very common cable national standard is GB 5023.1, GB 5023.2, GB 5023.3, GB 5023.4 series standards, that is, "rated voltage 450/750V and below polyvinyl chloride insulated cable" series standards. And JB 8734 "Rated voltage 450/750V and below polyvinyl chloride insulated cable wire and flexible wire" series of standards. In addition, there are: GB 9330 GB/T 12706 series, high voltage is mainly GB 12527, GB 14049. If you know the standard number, you can look it up online.

In addition: the national standard wire must be printed: quality system certification number; See whether the certificate is standard; See whether there is a factory name, factory address, inspection seal, production date; See if the wire is printed with trademarks, specifications, voltage, etc. Also look at the cross section of the wire copper core, excellent copper color bright, soft color, otherwise it is defective.

National standard wire is completely in accordance with the national standard to produce the wire, national standard cable general household wire are in line with the standard specification performance, there are five main aspects to measure.

(1) Appearance standards, the wire must have a clearly visible certification mark, manufacturer, origin, wire diameter and other signs, and the ground must have a yellow-green insulation layer to distinguish, it is not easy to occur accidents.

2. Mechanical strength, the mechanical strength of the national standard wire should be high enough to be used in more fields, and the coverage of its application will be wider. If you do not meet the requirements, then some cases should not be used.

(3) Sheath insulation, the national standard wire on the insulation performance of the wire put forward relatively high requirements, in general, the insulation of the sheath should be greater than 100MΩ, the compressive strength must be below 1500V to meet the standard.

4. Wire resistance, in line with the national standard of the wire, are in line diameter, conductivity, resistance has strict requirements, in line with the national standard, so that more users with peace of mind, with the rest assured.

5, high and low temperature resistance, national standard wire safety performance is relatively good, because the wire use environment is not the same, the standard is unified, then for high and low temperature resistance requirements, it is more attention, only good high and low temperature resistance performance, in order to ensure quality problems, the general standard is at high temperature impact below 159 degrees, If the low temperature of minus three or four degrees does not appear cracking and other phenomena, it is in line with this part of the requirements.

Only if the above aspects are met, this wire is in line with the standard of the national standard wire, you can see how strict the control of the national standard cable for the quality of the wire, it is also this strict, in order to create a good reputation. How is it, is it about the national standard wire?

Qingdao Tianxing Cable Co., Ltd. focus on supporting wire and cable production customization manufacturers, main: exports to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Qingdao cable manufacturer hotline: 16678668098