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![Does the RVVP/RVVS···]()
2025-09-01 Does the RVVP/RVVS cable hav···RVVP is a shielded cable. Inspection only assesses the braid density of the shield (copper wire braid), disregarding impedance. The braid density is required to be at least 80%, and the JB/T8734.5-1998 standard is adhered to. However, the RVVYP, which serves a similar purpose, complies with the GB/T
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![What are the diffe···]()
2025-09-01 What are the differences bet···What are the differences between DC cables and AC cables?1) They are used in different systems. DC cables are used in rectified DC transmission systems, while AC cables are commonly used in industrial frequency (50 Hz in China) power systems.2) Compared to AC cables, DC cables offer higher transmiss
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![What are the appli···]()
2025-09-01 What are the applications of···What are single-core, two-core, three-core, four-core, and five-core cables suitable for?Single-core cables are typically used to transmit single-phase AC and DC power, and can also be used in specialized applications (such as high-voltage motor lead-out cables). Generally, medium- and low-voltage,
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![Understanding ZR a···]()
2025-09-01 Understanding ZR and NH mode···Given the current situation, strict adherence to GB 19666 or GA 306 standards is crucial, not simply writing down the grades as ZR or NH. Two different standards exist for one country, and many of the conventions and unspoken rules that have been established in the market over the years are difficul
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![What is the main f···]()
2025-09-01 What is the main function of···What are the main functions of the inner and outer semi-conductive shields in power cables?The inner semi-conductive shield eliminates the air gap between the conductor and the insulation, equalizing the electric field on the conductor's surface. The outer semi-conductive shield eliminates the c
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![What is the functi···]()
2025-09-01 What is the function of the ···What is the function of the metal tape shield in power cables?The metal tape shield in power cables is typically made of copper tape wrapped around the outer semi-conductive layer. Its functions are as follows:1) It strengthens the electric field confinement within the insulation layer, aligning the
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![What is the functi···]()
2025-09-01 What is the function of cabl···What is the function of a cable sheath?The cable sheath is one of the three main components of a cable. Its primary function is to protect the internal structure from mechanical damage and various environmental factors (such as water, sunlight, biological damage, and fire) during installation and op
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![What is the functi···]()
2025-09-01 What is the function of the ···What is the function of the neutral conductor in a low-voltage four-core cable?In four-core cables used in low-voltage power grids, the neutral conductor is a conductor other than the three-phase conductors. Its function is to pass the unbalanced current of the three-phase AC power. A three-core cab
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![The difference bet···]()
2025-09-01 The difference between DA an···DA marine cable single vertical combustion test, SA marine cable bundle combustion test.
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![Questions about YJ···]()
2025-09-01 Questions about YJV22 and YJ···YJV22 is a cross-linked polyethylene (XLPE) insulated PVC bedding (extruded or wrapped), with steel tape armor and a PVC sheath.YJV23 is a cross-linked polyethylene (XLPE) insulated PVC bedding (extruded or wrapped), with steel tape armor and a PE sheath.YJV32 is a cross-linked polyethylene (XLPE) i
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