A Brief Introduction of Different Cables

There are generally two kinds of cables: armored cable and non-metallic cable, that is, AC cable and NM cable. What are they and their difference?

Armored cable is a type of power-conducting cable that is covered in a metal sheath. In most cases, it consists of a bundle of wires covered in a metal tube, which may be covered in a plastic insulation layer. The various types of metal-covered cable are made in a similar fashion. At the core of the cable is a wire bundle. There are three basic types of metal-covered cable; all are referred to as armored cable.

BX is one of the earliest types of electrical cable developed for both residential and commercial uses in the early part of the 20th century. It is a collection of plastic-coated insulated wires (typically 14- or 12-gauge), bundled together and protected by a ribbon-like metal sheathing. Like any other cable, if the armor is nicked, cut, or shredded, the wires inside can be compromised. BX's armor, while much stronger than NM's vinyl, can still be pierced by a determined and well-placed nail or screw.

When electrical wiring needs extra protection, metal-clad (MC) cable is a great solution, and is often required by electrical codes. Metal-clad cable comes in several varieties, but the type you’ll find at most home centers is three insulated wires (two circuit conductors and a green equipment grounding conductor) protected by a flexible armor usually made from aluminum. MC cable is identified by the gauge of the wire, not the diameter of the armor. The most common sizes are 14 gauge, 12 gauge and 10 gauge. It offers protection from fire, vibration, gnawing pests and physical harm in general.

Hybrid fiber-coaxial (HFC) is a telecommunications industry term for a broadband network that combines optical fiber and coaxial cable. It has been commonly employed globally by cable television operators since the early 1990s …

Welcome to the source website to continue reading: http://www.metalrecyclingmachine.com/news/different-cable-kinds.html

Copper Resource’s Distribution and Productivity

Copper Resource’s Distribution
The content of copper in lithosphere is about 0.01%. In some copper mines, the percentage is up to 3%-5%. Copper in nature usually exists in the form of compounds. In 2014, USGS did an evaluation for the global copper ore deposit, finding that the copper content in those explored copper mineral is about 2.1 billion tons and 3.5 billion in pending exploration.

According to the data of USGS in 2015, global copper reserve is about 0.7billion tons. Of them, Chile owns 209 million tons;Australia, 93 million;Peru, 68 million; America, 35 million; Mexico, 38 million; China, 30 million; Russia, 30 million; Indonesia, 25 million; Poland, 26 million, Zambia, 20 million; Congo (gold), 20 million; Canada 11 million; Kazakhstan, 60 million; the rest all countries, 90 million.

From the above data, we can see that copper resource is mainly distributed in those regions, North America, Latin America, and Central Africa. As for countries, copper resource mainly exists in those countries, Chile, America, Zambia, Russia and Peru. Among them, Chile has the richest copper resources, occupying29.86% of the global storage. At the same time, Chile is the world’s largest copper producer and exporter.

Distribution of Copper Resources in China

China is not a country with rich copper resources. Its main producing area is Eastern China, occupying 51.84% of the national total production. Of them, Anhui and Jiangxi Provinces occupy 30%. Yun’ nan and Inner Mongolia are also the main producing areas.

Copper Productivity
According to the USGS ‘s data in 2015, the global copper productivity in 2013 and 2014 is shown in the following table:

Global Copper Productivity （Unit: Thousand Ton)
Nations	2013	2014
United States	1250	1370
Australia	990	1000
Canada	632	680
Chili	5780	5800
China	1600	1620
Congo(gold)	970	1100
Indonesia	504	400
Kazakhstan	446	430
Mexico	480	520
Peru	1380	1400
Poland	429	425
Russia	833	850
Zambia	760	730
Other countries	2200	2400
Global Productivity	18300	18700

Sourced:USGS

According to Peru Business Daily, CRU Consulting released a report, saying Peru is still the third largest copper producer on the world in 2013. The top two countries are Chile and China. American ranks the forth, followed by Australia, Congo, Zambia, Russia, Canada, Indonesia, etc.

Main Copper Production Countries: Chili, Australia, Peru, America, China, Russia, Indonesia, Congo, Zambia,etc.

Main Copper Consumption Countries: America, Japan, German, Russia,China, Italy, Belgium, South Korea, UK.

Main Copper Exporting Countries: Chile,Canada, Peru, Mexico.

Main Copper Importing Countries: America, Japan, France, UK, Italy, Belgium, China.

At present, copper’s supply can meet the need as a whole, but we shouldn’t forget copper is nonrenewable resource. Copper recycling is also necessary for sustainable development. For reaching same quality as refined copper, copper scrap recycling needs suitable and quality machine like copper cable granulator. Hope this page help you know better about copper resource.