EVCOME EV charging stations for better life---Top EV charging stations manufacturers & suppliers in China.
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EVCOME EV charging stations for better life---Top EV charging stations manufacturers & suppliers in China.
1. Cables mainly have copper conductors: conductors can be divided into bare copper, copper-plated, copper-clad steel, copper alloy, copper foil wire, etc. Bare copper --- small conductor resistance, easy to oxidize copper plating --- enhanced oxidation resistance tinned copper --- enhanced oxidation resistance, easy to follow-up welding silver-plated copper --- strong conductivity, high price, mostly used for radio frequency Cable and fluoroplastic high-temperature wire Copper-clad steel --- high strength, often used in overhead cables Copper alloy --- high strength (a small amount of other metals are added to copper) Copper foil wire --- strong bending resistance, high flexibility ( Press the copper into thin sheets and wrap it on the elastic fiber) In order to improve the strength of the conductor, the method of twisting multiple copper wires is usually adopted. 2. Cable insulator: commonly used insulating materials are PVC (PolyVinyl Chloride, polyvinyl chloride), SR-PVC (Semi-rigid PVC, semi-rigid PVC), PP (Polypropylene, polypropylene), PE (Polyethylene, polyethylene), Foam-PE, Foam-PE+Skin, etc., and the latest magnesium oxide (MI) mineral insulator . 3. Types of fire-resistant cables: YTTW--The outside of the fire-resistant cable is welded and corrugated longitudinally with copper tape, the inner cable core insulation is wrapped with fire-resistant mica tape, and glass fiber wire or other fire-resistant fillers are used for the final cable. BBTRZ--The structure of the fireproof cable is the same as above, that is, the fireproof mica tape is replaced with a ceramic silicon rubber tape. I don't know which is better for these two cables with different insulation. NG-A--The outer sheath of the fireproof cable is made of aluminum, that is, the copper strip is longitudinally wrapped with welded crimps to the aluminum strip is longitudinally clad with welded crimps, and the inner cable core may be wrapped with several layers of fire-resistant insulating tape. BTLY--The outer protection of the fireproof cable is a continuous extruded aluminum tube, and the inner protection of the cable core is also a continuous extruded aluminum tube. The aluminum tube protection inside and outside the cable is a polished rod without embossing. The best bending performance is definitely a flexible fireproof cable without longitudinal welding and then crimping. BTTZ--mineral insulated cable, some people call it magnesium oxide cable, this kind of cable should be a cable with better fire resistance, but the production process is very complicated, mainly because the filling of magnesium oxide powder is difficult to do, so the production of this kind of cable The localization of advanced equipment cannot be achieved, mainly relying on the introduction of advanced technology and equipment. In short, the principle of fireproof cables is different according to the materials and manufacturing processes used, so the fireproof effects are different. We specialize in the production of mineral insulated cables and branch cables. The mineral insulated copper sheathed flexible fireproof cables independently developed and produced are the first exclusive patented products in China. , master the core technology, the introduction of the branch cable of the mineral insulated cable type is here, if you have more questions, you can consult us, hoping to help you. .
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