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As a rough estimate, for medium voltage cables directly buried in earth, I use 2 A / mm^2 for copper conductors, and 1.2 A/mm^2 for aluminum conductors.
However, the installed capacity of a cable is mostly dependent on how much heat can be dissipated to its surroundings, and ultimately the maximum temperature of the insulation material.
For this reason, it is important to know how the cable will be installed, what conductor is used (Al or Cu), the cable insulation (for both thickness and operating temperature limits), soil thermal resistance (if buried), and if there are other heat sources (cables, process pipes, incident solar radiation, etc) are nearby.
There are several cable manufacturers that provide reference current ratings for nominal installations. Check Nexans, Prysmian, or Okonite (US dimensions).
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35 sq mm copper wire current carrying capacity?
It can carry upto 100 Ampere.
What is the Current carrying capacity of 95 sq mm 4 core aluminium cable?
2.5 sqmm cu cable current carrying capacity is 19 amps.
What is the current rating of 185 sq mm of aluminium?
300a
How can calculate the current capacity of 2.5 sq mm wire?
You don't calculate the current-carrying capacity, you find out from the appropriate Tables in your country's wiring regulations. In the UK, this is BS 7671:2008 Requirements for Electrical Installation.The reason you must do this is that the current-carrying capacity of a cable depends on the conductor type, number of cores, the type of insulation, the method of installation, etc. Allthese factors are taken into account in these Tables.For a 2.5-mm2 copper cable, the current-carrying capacity can vary from around 22 A to around 36 A, depending on the factors described above.
DC carrying capacity of 50 sq mm copper cable?
140 amp
What is the current carrying capacity of 185 sq mm copper?
170A
What is the current carrying capacity of 1 sq mm to 400 sq mm above?
600 Amps
What is the current carrying capacity per pole of 3.5 core 300 sq mm xlpe cable?
according to manufacturers data sheet 325amps ,but plz tell me how to calculate current carrying capacity of a cable.
35 sq mm copper wire current carrying capacity?
It can carry upto 100 Ampere.
4 sq mm copper cable current carrying capacity?
25 amps, 6000 watts
What is the current carrying capacity of 120 sq mm copper conductor?
1 sq..mm have max. capacity is 10 ampere if these are of copper approximately than 120 sq..mm having current carrying capacity is 1200 ampere
What is the Current carrying capacity of 95 sq mm 4 core aluminium cable?
2.5 sqmm cu cable current carrying capacity is 19 amps.
What is the maximum current capacity of 4 sq mm copper wire?
I can say it is 29 Amps.But again it depends on the cable length.The more the cable length is the less the current carrying capacity will be.
What is the current rating of 185 sq mm of aluminium?
300a
What is the current carrying capacity of 35 sq mm copper wire?
A 35 sq mm copper wire with an insulation factor of 75 or 90 degrees C is rated at 115 and 120 amps respectively.
How can calculate the current capacity of 2.5 sq mm wire?
You don't calculate the current-carrying capacity, you find out from the appropriate Tables in your country's wiring regulations. In the UK, this is BS 7671:2008 Requirements for Electrical Installation.The reason you must do this is that the current-carrying capacity of a cable depends on the conductor type, number of cores, the type of insulation, the method of installation, etc. Allthese factors are taken into account in these Tables.For a 2.5-mm2 copper cable, the current-carrying capacity can vary from around 22 A to around 36 A, depending on the factors described above.
What is the maximum current carrying capacity of 16 sq mm copper wire?
the current carrying capacity of 16sq.mm copper conductor is as below: For Single phase A.C or D.C is - 76 amperes (VIR insulated) and that For Three phase A.C or D.C is - 66 amperes. (rubber insulated)
