Several factors that affect cable performance
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Ultraviolet (UV) - Do not apply UV-free cables to direct sunlight.
Heat - The temperature of a cable in a metal pipe or raceway is high, and many polymeric materials have a reduced service life at this temperature. Water - The moisture in the LAN twisted pair cable increases the capacitance of the cable, which reduces the impedance and causes near-end crosstalk problems.
Water - The moisture in the LAN twisted pair cable increases the capacitance of the cable, which reduces the impedance and causes near-end crosstalk problems. Mechanical Damage Repair غير مجاز مي باشدts - Optical fiber cable repair is very expensive, requiring at least two breaks at each break Termination to ground - If the shield of the cable needs to be grounded, it must comply with the corresponding standard routing total length not only refers to the building - the use of outdoor LAN twisted pair cable between buildings, the total length to be limited to 90 meters The distance between the inner pair and the 100Mps or 1000Mbps network can not exceed this limit. If the distance is between 100m and 300m, the cable should be selected.
Sodium Formate is also called sodium formate. The crystal contains two crystal waters, so it is also called sodium formate dihydrate, sodium formate dihydrate, sodium formate dihydrate. Sodium formate is one of the simplest organic carboxylates. It is white crystals or powder with a slight Formic Acid odor. Slightly deliquescent and hygroscopic. Soluble in about 1.3 parts of water and glycerin, slightly soluble in ethanol and octanol, insoluble in ether. Its aqueous solution is alkaline. When heated, sodium formate decomposes into hydrogen and sodium oxalate, and then generates sodium carbonate. Sodium formate is mainly used in the production of insurance powder, oxalic acid and Formic ACID. In the leather industry, it is used as a camouflage acid in the chrome tanning process, used as a catalyst and a stable synthetic agent, and a reducing agent in the printing and dyeing industry. Sodium formate is harmless to the human body and has irritating effects on eyes, respiratory system and skin.
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