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Cable bridge fault analysis

  • Categories:Zhongrui News
  • Author:
  • Origin:
  • Time of issue:2019-05-28 14:34
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(Summary description)The so-called "no one is perfect, no gold is enough" people sometimes feel small and small, and some equipment accessories in life will also have minor faults. This is the reason we need to maintain, electricity plays a role in life. In a word, if we don't have electricity now, we don't know what to do. We can't live without electricity. But sometimes it stops, the cable tray may be faulty, causing power outages. Let's take a look at the cable tray failure. What kind of it!

Cable bridge fault analysis

(Summary description)The so-called "no one is perfect, no gold is enough" people sometimes feel small and small, and some equipment accessories in life will also have minor faults. This is the reason we need to maintain, electricity plays a role in life. In a word, if we don't have electricity now, we don't know what to do. We can't live without electricity. But sometimes it stops, the cable tray may be faulty, causing power outages. Let's take a look at the cable tray failure. What kind of it!

  • Categories:Zhongrui News
  • Author:
  • Origin:
  • Time of issue:2019-05-28 14:34
  • Views:
Information
The so-called "no one is perfect, no gold is enough" people sometimes feel small and small, and some equipment accessories in life will also have minor faults. This is the reason we need to maintain, electricity plays a role in life. In a word, if we don't have electricity now, we don't know what to do. We can't live without electricity. But sometimes it stops, the cable tray may be faulty, causing power outages. Let's take a look at the cable tray failure. What kind of it!
 
(1) Open circuit fault: The insulation resistance of each phase conductor of the cable complies with the regulations, but the continuity test of the conductor proves that one or several phase conductors are discontinuous, or the operating voltage cannot be transmitted to the terminal although it is not disconnected, or although the terminal has voltage However, the load capacity is poor. Common types are single-phase disconnection, two-phase disconnection, and three-phase disconnection.
 
(2) Low-resistance grounding or short-circuit fault: the insulation resistance between the one-to-one conductor of the cable line or the number of conductors of the shed conductor or the phase conductor is lower than the normal resistance value, the resistance value is lower than 1OΩ, and the conductor is continuous. Good sex. Common types are single-phase grounding, two-phase short-circuit, two-phase short-circuit grounding, three-phase short-circuit grounding, and so on.
 
(3) Flashover fault: The cable insulation is good at low voltage. When the voltage rises to a certain value or after a certain high voltage continues for a certain period of time, the insulation will instantaneously break down. Common types are single-phase flashover, two-phase flashover, and three-phase flashover.
 
(4) High-resistance grounding or short-circuit fault: similar to low-resistance grounding or short-circuit fault, but the difference is that the grounding or short-circuiting resistance is greater than 1OΩ and the core wire is well connected. Common types are single-phase grounding, two-phase short-circuit, three-phase short-circuit grounding, and two-phase short-circuit grounding.

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