In the choice of cable to choose according to their own site cable usage, not freeloaders. Cheap but also ensures that cable is the national standard, in all likelihood are walking a fine line.
Fudge is not professional users do not understand the industry.
For the majority of users to more clearly recognize quality standard cable wires
and self-judgment GB and non-target difference. Here we combine the actual situation
and the cable industry engineering users often encountered, so that
we do a simple understanding.

Cables and wires in general engineering users and use in construction projects are mainly three kinds of cables appear:

1 GB cable: According to the introduction of the relevant cable standards of
technology produced by the cable referred to the international line.

2, line marked cable: based on industry standards, mainly there are fewer cut corners,
but does not affect the big performance.

3, non-standard cables: In order to meet market demand for the product
should be born pregnant. Today, more and more widespread application of wire and cable,
along with, on the market more and more types of wire and cable.

So, how to distinguish between the wire and cable "GB" and "non-standard" mean?

We recommend that you a look at two test three weighing, four more than the price five
to see copper, six quality inspection, six strokes outcome.

A look: wire and cable products to see whether the quality system certification,
to see whether the certificate specifications, to see whether the name and address,
test chapter, production date, see whether printed trademarks, specifications,
and voltage on the wires. Copper core of cross section depends on the wire,
Excellence for copper color bright, soft colors, otherwise it is defective.

Second test: the desirability head by hand repeatedly bending a wire, all soft,
anti-fatigue strength, elastic plastic or rubber handle and no cracks in the insulation
on the wire is the superior product.

Three weighed: In good quality wire and cable, general weight per 100m in a predetermined
weight range. Such as the commonly used cross-sectional area of ​​1.5mm2 single strand of
plastic insulated copper wire, each 100m weight 1.8-1.9kg; 2.5mm2 single strand of
plastic insulated copper wire, each 100m weight 3-3.1kg; 4.0mm2 plastic insulated
single-strand copper wire, each 100m weighs 4.4-4.6kg like. Poor quality of wire weighs
less, or not long enough, or too much copper core wire impurities. If the cables,
especially large-sized cable, weighing the soil is the best way to reflect whether
the cable conductor cross-section copper content standards and whether sufficient
underlying the easiest way, generally have a small cross-section of stealing copper cable,
 if cable After weighing less copper content of said state allowable weight range error,
the basic can be identified as non-standard.

Four more than the price: Because of the low production cost of fake and shoddy wiring,
 so traders in the sales, often under the guise of cheap low-cost sales, people fooled.
Thus, when buying, beware, do not for businesses advertised "affordable" dazzled final
deceived. Five bronze look. Qualified copper wire copper conductor should be purple,
shiny, feel soft.

Five see copper material: copper wire copper core of shoddy purple, yellow or white,
impurities, poor mechanical strength, poor toughness, that is a little harder will break,
and the cables often break phenomenon. Check, you just put a head stripped wire
some children, then a piece of paper with a little twist on the copper core,
if there is a black substance on the white paper, described in Tongxin more impurities
can be identified as "non-standard "Wire and Cable.

Six quality testing: in the case of differences of cable quality, can be sent to
third-party testing bodies. With the authority of the test report is qualified as
the basis.