2015年8月13日星期四



Because the main carrier of energy transmission, cable is widely utilized in electrical equipment, 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 many Cable Manufacturers within the marketplace, and you will find also many varieties of cable. You need to select proper cable according to the usage of electricity load. You can find related models and specifications in the cable specification.
Usually, whenever you select a wire and cable, except electrical wire size and electrical wire price, you need to also notice some particulars as below.
First of all, you need to choose right wire and cable kinds. At this time, you should consider the purpose, the laying conditions and safety, for instance: according to the various utilizes, you are able to choose energy cable, aerial insulated cable and manage cable; according to the various laying conditions, you are able to choose general plastic insulated cable, Screened Manage Cable, steel tape armoured cable, Armoured Power Cable, anti-corrosion cable and so on; based on the security requirements, you are able to choose the flame retardant cable, halogen totally free flame retardant cable, fire cable, etc..
Secondly, the option of the regular of wire and cable. When you need to make sure the specification of wire and cable, usually, you should consider heating, voltage loss, economic present density, mechanical strength and so on.
According to the encounter, for the low-voltage power line, due to its bigger load present, you should consider the section first according to the circumstances from the heating, and then check the voltage loss and mechanical strength. For low voltage lighting line, it has a high specifications around the voltage level, you need to select the section according to the permissive voltage loss condition, then checking the heating conditions and mechanical strength. For high voltage transmission lines, firstly, you should select section according to economic current density, and then check the heating circumstances and permit voltage loss. For high voltage overhead line, expect the section, heating circumstances, you also should think about its mechanical strength. If the user has no experience, some professional units or individuals will offer some suggestions for you personally.
Lastly, you should select the Cable Manufacturer. There are lots of differences in between the various goods supplied by different Cable Manufacturer even they have exactly the same name or same size. The inner material is extremely essential to get a cable. A great cable, it adopt great copper or some other high conductivity metal, but you cannot verify it by yourself, so you need to choose a Cable Manufacturer who features a higher inspection regular and high quality requirement.

没有评论:

发表评论