Wire surface marks according to the national standard, there should
be factory name, product model and continuous symbol of rated voltage on
the wire surface. This is good to use the
electric wire
when problems occur in the process, you can find the manufacturing
factory in time, it is important for consumers to note this when choose
and buy wire. At the same time, when purchase wire, consumers should pay
attention to if the indicated on the certificate of manufacturer name,
product model, rated voltage are consistent with printing marks on the
surface of the wire, to prevent counterfeit products.
Wire appearance consumers should pay attention to the appearance of
the wire when purchase wire, it should be smooth level off, the
insulation and sheath layer without damage, logo printing is clear, no
greasy feeling when touch the wire. See from the cross section of the
wire, the entire circumference of the thickness of the insulation or
sheath of the wire should be uniform, should not be partial core, the
insulation or sheath should have a certain of thickness.
Conductor wire diameter consumers should pay attention if the
conductor
nm-b wire diameter consistent with certificate on express section
when purchase wire. If the conductor cross section is small, it will be
easy to make the wire hot and cause short circuit. We suggest family
lighting wire use 1.5mm2 and above specification; Larger power household
electrical appliances like air conditioners, microwave ovens should use
wire with power of 2.5mm2 and above specifications.
Specification using the wiring should be regulated, fixed line had
better use BV single core tube, attention in wiring, don't touch the
wire, in the room don't touch bad when decorate wire; Don't joint in the
middle route; Wires connected to the electrical box don't touch the
line; Additional power consumption large household appliances such as
air conditioning should separate all the wire power supply; Keep a
certain distance between low voltage and high voltage cable
wires.
