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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.
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∙ 12y ago
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∙ 11y ago19A
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What is current capacity of 95 sqmm cable?
what is current capacity of 95 sqmm cable?
Calculate the charge transferred in 25 minutes by a current of 500 mA?
The charge transferred in 25 minutes by a current of 500 mA is 750 coulombs. Amperes is defined as coulombs per second, so 500 mA is 0.5 coulombs per second. 25 minutes is 1500 seconds, so the charge is 750 coulombs.
How do you wire a 277 to 120 volt transformer?
The voltage 277 volts is a three phase line to neutral voltage of a 480 volt system. What is needed for the protection of the transformer is a two pole breaker from the 480 volt CDP (Central Distribution Panel). The breaker will be sized to the KVA of the transformer. The wire will be sized to the breaker plus 25%. The electrical code requires that on motor and transformer feeders, they be sized to 125% of the total current capacity of the equipment.
Should 25 amps breaker be replaced by 20 amps?
For typical residential house wiring 12 AWG wire is required for a 20 Amp breaker. If you change out the breaker for a 25 A breaker you would have to rewire the circuit with 10 AWG. In that case you could up the breaker to 30 Amps. All outlets and switches should be rated at the same voltage and current as the breaker.
What size breaker should you use for a tnia-10 wire?
25 amp breaker
What is current capacity of 95 sqmm cable?
what is current capacity of 95 sqmm cable?
Current carrying capacity of 4mm cable?
25 amps
4 sq mm copper cable current carrying capacity?
25 amps, 6000 watts
Can you run a wire direct for my rear running lights and dash lights?
You should never connect any accessory directly to the battery in a car. If a short happens, you will have the full current capacity of the battery routing through the passenger compartment. The current capacity of a car battery is enough to melt a solid copper 14 gauge wire in a flash. This can easily start a fire. If you must, go to an auto parts store and buy an in-line fuse kit. Put a 25 or 30 amp fuse in it and use no smaller than 18 gauge wire in your new circuit.
How does the strength of the magnetic field around a wire change if the current in the wire is increased from 0.25 A to 1.75 A?
According to Ampere's Law, the strength of the magnetic field around a long, straight wire carrying current is directly proportional to the current and inversely proportional to the distance from the wire at which it is measured. Assuming fixed distance from the wire (meaning that you're measuring in the same place), if you increase the current by 1.75/.25= 7 times, you will also increase the magnetic field by 7 times.
What is the reading ground to neutral?
Ideally ground and neutral should be at the same potential, but as there is current in the neutral wire and no current (normally) in the ground wire there can be a difference. I have personally measured over 25 VAC on the neutral relative to ground in some systems.
What is the capacity of maytag dryer DE 303?
I calculate it to be 8.0 cu ft. 26.5 inch diameter drum that is 25 inches deep.
An alarm clock draws 0.5 a of current when connected to a 120 volt circuit calculate its resistance?
240 ohms
Calculate the charge transferred in 25 minutes by a current of 500 mA?
The charge transferred in 25 minutes by a current of 500 mA is 750 coulombs. Amperes is defined as coulombs per second, so 500 mA is 0.5 coulombs per second. 25 minutes is 1500 seconds, so the charge is 750 coulombs.
When was Man on Wire?
Man on Wire was released on 07/25/2008.
A water despenser has a capacity of 25000 milliliters what is the capacity in liters?
25 L
How do you wire a 277 to 120 volt transformer?
The voltage 277 volts is a three phase line to neutral voltage of a 480 volt system. What is needed for the protection of the transformer is a two pole breaker from the 480 volt CDP (Central Distribution Panel). The breaker will be sized to the KVA of the transformer. The wire will be sized to the breaker plus 25%. The electrical code requires that on motor and transformer feeders, they be sized to 125% of the total current capacity of the equipment.
