A 250 MCM copper conductor with a insulation factor of 75 or 90 degrees C is rated at 255 and 265 amps respectively. This conductor can only be load to 80% capacity which allows a working current of 204 and 212 amps respectively. To obtain the full capacity of 250 amps a 350 MCM conductor will be needed. The amp rating for a 350 MCM conductor with an insulation factor of 90 degrees C is 325 amps. 325 x .8 = 260 amps.
A 228 sq mm conductor equates to 450 MCM. A conductor of 450 MCM is not a standard AWG wire size. A standard 400 MCM will carry 380 amps. A standard 500 MCM will carry 430 amps. Difference between 400 and 500 MCM amperage's is 50 amps. Transposing between the two amperage's of 50 amps will be 380 + 25 = 405 or 430 - 25 = 405 amps. This is a very rough calculated answer for the question.
A 0.15Cu cable has a rating of 382 amps summer and 476 amps winter. 0.2Cu allows 425/530 amps. That is for outdoor use in overhead lines.
445 amps. For example Mulberry AAAC cable.
Amps, or amperes, are a measure of electrical current; ohms are a measure of electrical resistance. Both are widely used in physics.
The amperage rating is dependent upon the insulation rating. A pair of 25mm squared wires touching each other are rated at 131 amps. Three 25mm squared wires touching each other are rated at 110 amps.
The 240 sq. mm cable has a diameter of 17.48 mm. It can carry up to 425 Amps current in a duct and up to 520 Amps in open air.
30 Amps
The current carrying capacity of a cable can depend on factors such as the material, insulation, and installation method. For a rough estimate, a 125 mm2 cable can typically carry around 200-250 amps for standard copper conductors in common installation conditions. It is advisable to consult local electrical codes and standards, as well as a qualified electrician, for precise calculations.
A 4-gauge aluminum wire can typically carry up to 70-85 amps of current for general household wiring applications. It is important to always consult with local electrical codes and a professional electrician to ensure safe and compliant electrical installations.
Depends on the type of cable, the method of fixing the cable, the ambient temperature and the way the cable has been run to the motor (i.e in trunking, Conduit) Bascially a cable with a current carry capasity of 2 amps should be fine (1.45 amps with power factor of unity and no de-rating factors). Remember 1mm cable can carry at least 8 amps. Also please improve your English when asking stupid questions!!
For 148 amps per NEC, you would typically use a 3/0 AWG copper cable for a maximum voltage drop of 3%. This size cable is rated to safely carry 148 amps while meeting the National Electrical Code (NEC) requirements. It's always best to consult the NEC and a qualified electrician to ensure compliance and safety for your specific application.
Wire size becomes an electrical hazard when it is under rated for the amount of current (Amps or I) it has to carry.Current is the flow of electrons in a circuit. If the current is too large for the cable, the cable will be subject to heating, which is a possible fire hazard.
5 amps
The recommended cable size for 210 amps would be at least 2/0 AWG (00 AWG) for optimal performance and safety. Make sure to consult the National Electrical Code (NEC) or a professional electrician to determine the exact cable size needed based on the installation requirements and conditions.
30 amps is how much a 10-2 wire will carry at 110 feet. 10 gauge wire is only good for thirty amps per the national electrical code. Using 80% of the breakers usage you will actually be getting only 24 amps.
A 4-wire connection typically refers to a 4-wire cable used in electrical installations. The ampacity of a 4-wire cable would depend on its gauge or thickness, which determines the maximum current it can carry safely. Common ampacities for 4-wire cables can range from 15 amps for smaller cables to 100 amps for larger cables. It is important to consult the manufacturer's specifications for the specific 4-wire cable being used.