Conductors in parallel: Difference between revisions
From Electrical Installation Guide
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{{Menu_Sizing_and_protection_of_conductors}} | {{Menu_Sizing_and_protection_of_conductors}} | ||
Conductors of the same cross-sectional-area, the same length, and of the same material, can be connected in parallel. | Conductors of the same cross-sectional-area, the same length, and of the same material, can be connected in parallel. | ||
The maximum permissible current is the sum of the individual-core maximum currents, taking into account the mutual heating effects, method of installation, etc. | The maximum permissible current is the sum of the individual-core maximum currents, taking into account the mutual heating effects, method of installation, etc. | ||
Protection against overload and short-circuits is identical to that for a single-cable circuit. | Protection against overload and short-circuits is identical to that for a single-cable circuit. | ||
The following precautions should be taken to avoid the risk of short-circuits on the paralleled cables: | The following precautions should be taken to avoid the risk of short-circuits on the paralleled cables: | ||
*Additional protection against mechanical damage and against humidity, by the introduction of supplementary protection | *Additional protection against mechanical damage and against humidity, by the introduction of supplementary protection | ||
*The cable route should be chosen so as to avoid close proximity to combustible materials | *The cable route should be chosen so as to avoid close proximity to combustible materials | ||
[[ru:Параллельное соединение проводов]] | [[ru:Параллельное соединение проводов]] | ||
[[zh:并联导线]] | [[zh:并联导线]] | ||
Revision as of 23:13, 27 November 2016
Conductors of the same cross-sectional-area, the same length, and of the same material, can be connected in parallel.
The maximum permissible current is the sum of the individual-core maximum currents, taking into account the mutual heating effects, method of installation, etc.
Protection against overload and short-circuits is identical to that for a single-cable circuit.
The following precautions should be taken to avoid the risk of short-circuits on the paralleled cables:
- Additional protection against mechanical damage and against humidity, by the introduction of supplementary protection
- The cable route should be chosen so as to avoid close proximity to combustible materials
