Supply of power cables, control cables - Zhujiang Cable

:: >XLPE insulated power cable
< r :: b br > :: b br > (including flame retardant type, halogen-free low smoke flame retardant type)
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< r :: b br > :: b br >A model and name
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< r :: b br > :: b br >Copper core cross-linked polyethylene insulated PVC sheathed power cable
: : ><:><:>< br/> < r :: b br > :: b br >Copper core cross-linked polyethylene insulated steel tape armored PVC sheathed power cable
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< r :: b br > :: b br > Note: For flame-retardant products, add, B, in front of ordinary cross-linked power cables
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< r : : b br > :: b br >Dual purpose
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< r :: b br > :: b br > This product is suitable for rated voltage () of. (.)~(.) distribution lines. Flame-retardant cables are used in situations with higher requirements for flame-retardant performance.
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< r :: b br > :: b br > In the cable voltage representation method ()
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< r :: b br > :: b br >:Rated voltage between conductor and ground or metal shield for cable design
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< r :: b br > :: b br >: Rated voltage between conductors for cable design
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< r :: b br > :: b br >: The maximum value of the highest system voltage that the device can withstand.
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< r :: b br > :: b br > The rated voltage of the cable should be suitable for the operating conditions of the system in which the cable is located. To facilitate cable selection, systems are divided into the following three categories.
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< r :: b br > :: b br > Category: When any phase conductor comes into contact with the ground or ground conductor, it can be internally separated from the system.
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< r :: b br > :: b br > Category B: Can operate for a short period of time when a single-phase ground fault occurs. According to regulations B, ground fault The time should not be exceeded. For cables covered by this standard, longer operating times with faults are allowed, but should not be exceeded under any circumstances. The total annual ground fault duration should not be exceeded.
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< r :: b br > :: b br > Class: includes systems that do not belong to class or class B.
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< r :: b br > :: b br > Note: It should be recognized that when the system ground fault cannot be automatically eliminated immediately, cable insulation should be added during the fault. Excessively high electric field strength will shorten the cable life to a certain extent. If the system is expected to operate frequently in a persistent grounded condition, the system should be classified as Class I.
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< r :: b br > :: b br >Three manufacturing basis
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< r :: b br > :: b br > The product manufacturing basis is B
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< r :: b br > :: b br >Four usage characteristics
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< r :: b br > :: b br >The maximum temperature of the conductor during normal operation is ℃.
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< r :: b br > :: b br >The maximum temperature of the cable conductor during short circuit (the longest duration does not exceed) shall not exceed ℃.
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< r :: b br > :: b br >The ambient temperature during cable laying should not be lower than ℃
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< r :: b br > :: b br >The bending radius when laying cables should not be less than the following:
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< r : : b br > :: b br > Single-core unarmored cable:
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< r :: b br > :: b br > Single-core armored Cable:
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< r :: b br > :: b br > Three-core unarmored cable:
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< r :: b br > :: b br > Three-core armored cable:
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