Because the main
carrier of power transmission, cable is extensively utilized in electrical
gear, lighting circuit, household appliances and so on. The high quality of the
cable is directly affect the engineering quality, and the security of life and
property of customer. There are lots of Cable Producers in the market, and
there are also many varieties of cable. You have to select correct cable
according to the usage of electricity load. You can discover associated models
and specifications within the cable specification.
Generally,
whenever you select a wire and cable, except electrical wire size and
electrical wire price, you should also notice some details as beneath.
First of all, you
need to choose right wire and cable kinds. At this time, you should consider
the purpose, the laying conditions and security, for example: based on the
different uses, you can select power cable, aerial insulated cable and manage
cable; based on the different laying conditions, you are able to select common
plastic insulated cable, Screened Control Cable, steel tape armoured cable, Armoured Energy
Cable, anti-corrosion cable and so on; according to the safety specifications,
you are able to choose the flame retardant cable, halogen totally free flame
retardant cable, fire cable, and so on..
Secondly, the
option from the standard of wire and cable. When you need to ensure the
specification of wire and cable, usually, you should consider heating, voltage
loss, financial present density, mechanical strength and so on.
Based on the
encounter, for the low-voltage power line, due to its bigger load current, you
need to think about the section first based on the circumstances from the
heating, and then verify the voltage loss and mechanical strength. For low
voltage lighting line, it features a higher specifications around the voltage
level, you should select the section based on the permissive voltage loss
situation, then checking the heating conditions and mechanical strength. For
high voltage transmission lines, firstly, you need to select section based on
financial current density, and then check the heating circumstances and allow
voltage loss. For higher voltage overhead line, anticipate the section, heating
circumstances, you also ought to think about its mechanical strength. When the
user has no encounter, some professional units or individuals will provide some
ideas for you personally.
Finally, you need
to choose the Cable
Manufacturer. There are many
variations in between the different goods supplied by various Cable Manufacturer even they've the same name or exact same
size. The inner material is extremely essential to get a cable. A good cable,
it adopt good copper or some other higher conductivity metal, but you cannot
check it by your self, so you should select a Cable Manufacturer who has a high inspection regular and quality
requirement.
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