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On September 9, the Jinan Central District Market Supervision Bureau carried out a special inspection of wire and cable products, and law enforcement personnel reminded the majority of users that from the perspective of cost, if the price of a roll of household wire is less than 100 yuan, then it is very likely to be an inferior product
.
For safety, everyone should choose to buy wires
from regular manufacturers with product certificates.
Law enforcement personnel introduced that in order to cope with regulatory spot checks and blind consumers, some unscrupulous manufacturers control the production process, so that the wires several meters long at both ends meet the standard, while the middle part cuts corners, pulls the diameter of the copper core very fine, and the thickness of the two ends is thin in the middle, so that the actual cross-sectional area of the wire diameter is small, and the size of the cross-sectional area determines the amount
of current that the wire and cable can carry.
More seriously, some manufacturers use inferior "second-hand copper" in large quantities, or copper-clad aluminum, copper-clad iron, and copper-clad steel to fake electrolytic copper for copper
wires.
This kind of recycled copper refinement has many impurities, easy aging, large resistivity, and easily causes the conductor resistance to exceed the standard, so that the wire heating speed is accelerated, in addition to consuming a lot of energy, it is also easy to cause fire
.
On September 9, the Jinan Central District Market Supervision Bureau carried out a special inspection of wire and cable products, and law enforcement personnel reminded the majority of users that from the perspective of cost, if the price of a roll of household wire is less than 100 yuan, then it is very likely to be an inferior product
.
For safety, everyone should choose to buy wires
from regular manufacturers with product certificates.
Law enforcement personnel introduced that in order to cope with regulatory spot checks and blind consumers, some unscrupulous manufacturers control the production process, so that the wires several meters long at both ends meet the standard, while the middle part cuts corners, pulls the diameter of the copper core very fine, and the thickness of the two ends is thin in the middle, so that the actual cross-sectional area of the wire diameter is small, and the size of the cross-sectional area determines the amount
of current that the wire and cable can carry.
More seriously, some manufacturers use inferior "second-hand copper" in large quantities, or copper-clad aluminum, copper-clad iron, and copper-clad steel to fake electrolytic copper for copper
wires.
This kind of recycled copper refinement has many impurities, easy aging, large resistivity, and easily causes the conductor resistance to exceed the standard, so that the wire heating speed is accelerated, in addition to consuming a lot of energy, it is also easy to cause fire
.
