Six steps teach you to pick out qualified home improvement wires

When we usually decorate the house, the step of choosing home improvement wires is essential
.
However, the quality of wires on the market is uneven, and the materials used in different places are different, and how to choose home improvement wires is a science
.
Here are some tips
for choosing a home improvement cable.

Tip 1: Scrutinize the hidden length
.
The length of home improvement wires is the easiest to cut corners, and don't just look at the number of meters at the end of the wire when
inspecting.
Although the end of some wires is marked with the number of meters, this meter number is not accurate, and some black-hearted merchants will do tricks in the middle part, such as marking 40 meters at 30 meters and so on
.
For example, BVV2×2.
5mm is 100±5 meters in length per roll, the market price is about 280 yuan, and the length of informal products varies
from 60 to 80 meters.
When looking, you can count the number of turns of the wire, and then multiply the radius of the entire roll to roughly calculate the length
.

Tip 2: Pay attention to the blurred
wire diameter.
It is also very common
in this market.
For example, the 2.
5 square BVV line, commonly known as copper single, is a wire of copper wire
.
It is called 2.
5 square because the diameter of the copper wire of the wire is 1.
78mm
.
Some 2.
5 square BV wires are only 1.
78mm when the outer insulator is counted, and the diameter of the copper wire is actually less than 1.
78mm
.

Tip 3: Check the quality
of copper.
True copper, the color is red, while brass is yellow
.
The quality of the copper is soft, and the brass is hard
.
As long as you don't buy copper-clad aluminum, it should be no problem, and now brass is not much
counterfeit at present.
Copper-clad aluminum is not copper, it is an aluminum material, which is coated with a layer of copper on the outside of the aluminum, which is easy to heat up or short circuit when the wire causes fire
.

Tip 4: PVC material
.
PVC materials cut corners almost nothing
.
The price of a ton of good quality PVC is only 8,000 yuan; A ton of copper costs 60,000 yuan, and the cost of counterfeiting on this is too high
.

Tip 5: Look for the CCC logo
.
There must be a CCC certification mark on the home improvement wire, which is a national compulsory safety certification product, and only those who pass the inspection have the "CCC" certification mark
.
The quality of the wire will affect our life and property safety, we must choose the wire products
with the CCC certification mark.

Tip 6: Product certificate
.
Home improvement wire product certificate is will be the "CCC" certification logo, trademark, model specifications, rated voltage, length, inspection, manufacturing date, implementation standards, factory name, factory address, telephone and other logos are printed clearly, and consistent with the product, these will be the regular manufacturers of the production of products, when purchasing to see clearly
.