What is a low-smoke halogen-free power cable? As the name suggests: low smoke, that is, reduce the production of harmful objects during combustion; Halogen is a toxic gas for the human body, halogen-free is the release of non-toxic gas, usually for the cable in case of fire. Low-smoke halogen-free power cables can also be called environmental protection cables, low-smoke halogen-free cables are mostly used in hospitals and places with strict environmental health requirements.
Most cable insulation on the market contains the chemical chlorine, which not only produces a lot of smoke but also releases deadly chlorine gas when burned. Many of the people who died in the fire were killed by inhaling toxic chlorine gas. Low-smoke halogen-free wire and cable do not contain chlorine, lead, cadmium and other harmful substances to the human body, while low-smoke halogen-free materials also have high flame retardant, not easy to burn, even if burning without toxic gas emission, not only safe and environmental protection, but also prevent the spread and spread of the fire, increase the rescue time for firefighters.
Low smoke halogen-free cable features:
1, halogen-free: halogen, in fact, a chemical element of the name, this chemical halogen is non-green, and low smoke halogen-free cable using green insulation layer, at this level, low smoke halogen-free cable for environmental protection is beneficial. Low smoke halogen free cable also has very high electrical and physical mechanical properties.
2, high flame retardant: In environmental protection cables, low smoke halogen-free cables are mainly to meet the characteristics of some buildings with high requirements, so low smoke halogen-free cables have good fire resistance, even in the fire now, low smoke halogen-free cables can do not spread the fire.
3, low toxicity: the insulation of low-smoke halogen-free cable is environmentally friendly, so it is harmless to the human body when the installation and use of personnel contact. The production of low-smoke halogen-free cable also needs to undergo a lot of toxicity tests to ensure that it will not harm the human body.
4, no corrosive gas: low smoke halogen-free cable in the design and production of new materials are environmentally pollution-free, these emerging materials in the production process also need to be strictly controlled, so low smoke halogen-free cable will not produce toxic gases in the use or even lit environment, which can ensure the damage to personnel, more environmental protection features.
Identification method of low smoke halogen-free materials
1. Look at the name
Consumers in the purchase of wire and cable products, the product name has low smoke halogen-free four words is not foolproof, imitation products under normal circumstances the name will be a little different, such as: polyethylene insulation low smoke halogen-free sheath flame retardant power cable, the correct name should be low smoke halogen-free flame retardant polyethylene insulated wire and cable. We must carefully distinguish when choosing products.
2. Combustion method
The insulation layer of the cable is burned with an open fire, and the low-smoke halogen-free cable is not easy to burn, and the insulation layer of the cable is kept relatively complete after burning, and the low-smoke odorless odor is maintained. On the contrary, a large amount of smoke and odor are generated after burning, so it can be determined that the insulation layer of the cable does not use low-smoke halogen-free materials.
3. Specific gravity method
We all know that high-density objects in water will sink, low-smoke halogen-free material density is larger, you can peel off a piece of insulation material into the water, if floating on the water, then the insulation layer of cable products is not low-smoke halogen-free material.
4. Look at the price
The price of low-smoke halogen-free wire and cable is about 10% - 20% higher than that of ordinary cable, the main reasons are: first, raw materials are more expensive than ordinary wire and cable; Second, in the production machine setting, the production time of low-smoke halogen-free wire and cable is about 30% - 50% more than that of normal wire and cable, and the efficiency is relatively low, resulting in an increase in costs.
The above content is the content that Tianxing cable shares for you in this issue, I hope it will be helpful to you
Qingdao Tianxing Cable Co., Ltd. is a high-tech enterprise specializing in the production of wire and cable in Shandong Province, with more than 150 sets of domestic excellent cable production equipment and testing equipment, excellent production technology, modern testing equipment, to ensure stable product quality and timely supply. The main products of the company are power cables, low smoke halogen free cables, photovoltaic cables, aluminum alloy cables, shielding cables, radiation crosslinking cables, control cables, computer cables, high life cables, flame retardant series wire and cable.
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