In 2016, the pass rate of wire and cable quality sampling in the circulation field in Weinan, Shaanxi Province was 73%;

Recently, the Weinan Municipal Bureau of Industry and Commerce 2016 wire and cable commodity quality sampling work in the circulation field has been fully completed
.
In this random inspection, 10 sets were selected in Dali, Fuping, Pucheng and Huaxian counties, and a total of 40 sets of wires and cables
from 19 dealers were sampled.
The conductor resistance, insulation thickness, thinnest point thickness of insulation at 20°C, insulation resistance at 70°C, immersion voltage experiment, external dimensions and other items were tested
.

This random inspection mainly involves individual distributors of wire and cable in Dali, Fuping, Pucheng and Huaxian counties, warehouses and construction sites
of telecommunications, mobile, Unicom, electric power, radio and television and other companies.
After inspection, 29 batches were qualified and 11 batches were unqualified, with a pass rate of 73%.

Among them, 5 batches of Da Li were qualified and 5 batches were unqualified, with a pass rate of 50%; 6 batches in Pucheng were qualified, 4 batches were unqualified, and the pass rate was 60%; 8 batches in Huaxian were qualified and 2 batches were unqualified, with a pass rate of 80%; Bupyeong all qualified
.

The non-conforming items are concentrated in the 20°C conductor resistance
.
Xindu, Fengtai, Bester, Xiqin, Longbo, Longguang, Dawei and other nominal brand products are on
the list.
The reason for the unqualified conductor resistance is mainly that in order to reduce the cost, the copper that accounts for 80% of the cost of raw materials shrinks, either reducing the cross-sectional area of the conductor, or using recycled copper containing too high impurities, which makes the conductor resistance of the wire and cable seriously exceed the standard, in addition to causing fire during use, it will also accelerate the aging
of the insulation layer wrapped in the wire.

For the unqualified goods found in the spot check and inspection, the Weinan Municipal Administration for Industry and Commerce has ordered the operators to stop selling and punished
the illegal acts in accordance with relevant laws and regulations.
At the same time, remind consumers in the process of purchasing wire and cable, pay attention to the section of the power cord, the surface of the copper core or aluminum core of the qualified product should have a metallic luster, the surface of the blackened copper or the surface of the white aluminum indicates that it has been oxidized
.