How to choose right cross-section of low voltage overhead cable conductor?
How to choose right cross-section of low voltage overhead cable conductor?
When choose right cross-section of low voltage overhead cable conductor, we shall obey the following tips:
① According to the conductor permissive current: When low voltage overhead cable conductor passes the maximum permissible continuous load current, conductor wire core heat does not exceed the allowable temperature.
② According to the permissive voltage loss: voltage loss is generated by low voltage overhead cable conductor continuously pass the normal maximum load current not exceed the permitted range, to ensure the normal operation of electrical equipment.
③ According to the mechanical strength: low voltage overhead cable conductors should be prevented from breakage during installation or operation. Low voltage overhead cable conductor cross-section, AAC and AAAC are required not less than 25mm2, ACSR is not less than 25mm2, copper bare conductor overhead cable diameter is not less than 4mm. When you select a larger conductor cross-section should considere according to the economic current density to minimize power consumption and operating costs of the line.
When choose right cross-section of low voltage overhead cable conductor, we shall obey the following tips:
① According to the conductor permissive current: When low voltage overhead cable conductor passes the maximum permissible continuous load current, conductor wire core heat does not exceed the allowable temperature.
② According to the permissive voltage loss: voltage loss is generated by low voltage overhead cable conductor continuously pass the normal maximum load current not exceed the permitted range, to ensure the normal operation of electrical equipment.
③ According to the mechanical strength: low voltage overhead cable conductors should be prevented from breakage during installation or operation. Low voltage overhead cable conductor cross-section, AAC and AAAC are required not less than 25mm2, ACSR is not less than 25mm2, copper bare conductor overhead cable diameter is not less than 4mm. When you select a larger conductor cross-section should considere according to the economic current density to minimize power consumption and operating costs of the line.
