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How do you calculate the current capacity of a cable when the cable size is known?

The current-carrying capacity of a cable depends on a number of things in addition to its cross-sectional area; these include the type of conductor, number of cores, type of insulation, whether or not it is armoured, method of installation, etc. Accordingly, to determine its current-carrying capacity, you will need to refer to your national electrical code. For example, in the UK, BS 7671:2008 Requirements for Electrical Installations contains tables for all standard cable types, specifying current-carrying capacity, voltage drops, etc.


How do we calculate the cable size for electrical installations?

Electrical wire size is directly dependant on the load amperage that is connected to it. The higher the load amperage, the larger the cross sectional area of the wire needs to be. The connected amperage to a conductor is determined by a group of electrical experts and their results are then written into the latest addition of the electrical code book of the country in which you live.


What will happened if cells were connected in parallel connection but in opposite polarities?

You would get a high circulating current through both cells, possibly enough to do significant damage to both the cells and to you, depending on the capacity of the cells. Technically, they would actually be connected in series, not parallel!


What is fault current capacity?

Fault current capacity refers to the maximum amount of electrical current that a system or device can safely conduct during a fault condition, such as a short circuit. It is a critical parameter in electrical engineering, as it helps determine the appropriate ratings for circuit breakers, fuses, and other protective devices to prevent equipment damage and ensure safety. Properly assessing fault current capacity is essential for designing electrical systems that can withstand short-circuit conditions without failure.


How long can the maximum ampere rating on a generator be exceeded?

Sometimes only seconds, it depends on the way the manufacturer rated the "maximum" capacity. In general, electrical equipment should be operated at no more than 1/2 of a maximum capacity.

Related Questions

What is the difference between the single line diagram of a 33 kV substation and a 66 kV substation and if possible then please provide the S.L.D. of both substations?

basically there will not be any difference between them. the capacity of equipment will be more such as the CB rating will be more basically there will not be any difference between them. the capacity of equipment will be more such as the CB rating will be more


What is the capacity of power transformer for 132kva substation?

A 132 kV substation is normally called a grid substation. It would normally use two or more 132/33 kV transformers rated at 90 MVA, or two or more 132/11 kV transformers rated at 30 MVA.


What is the electrical unit in Battery capacity?

(mAh) is the capacity. Click the link.


What is the capacity for Universal Studios islands of adventure?

three and a half


What is the maximum fill capacity allowed for NEC conduit fill in electrical installations?

The maximum fill capacity allowed for NEC conduit fill in electrical installations is 40.


What is the maximum electrical load capacity supported by a 200 amp circuit breaker?

A 200 amp circuit breaker can support a maximum electrical load capacity of 200 amps.


What is the maximum electrical load capacity that can be supported by a 200 amp main breaker?

A 200 amp main breaker can support a maximum electrical load capacity of 200 amps.


What is the maximum amperage capacity of the 125 amp main breaker in this electrical panel?

The maximum amperage capacity of the 125 amp main breaker in the electrical panel is 125 amps.


What is the maximum amperage capacity of the 400 amps main panel in this electrical system?

The maximum amperage capacity of the 400 amps main panel in this electrical system is 400 amps.


Can a fridge and microwave be safely connected to the same circuit"?

Yes, a fridge and microwave can be safely connected to the same circuit as long as the circuit can handle the combined electrical load of both appliances without exceeding its capacity. It is important to consult with a qualified electrician to ensure proper installation and safety precautions are taken.


The specific heat capacity of a liquid by an electrical heating method?

To determine the specific heat capacity of a liquid using an electrical heating method, you can measure the change in temperature of the liquid when a known amount of electrical energy is supplied. By using the formula Q = mcΔT (where Q is the heat energy supplied, m is the mass of the liquid, c is the specific heat capacity, and ΔT is the temperature change), you can calculate the specific heat capacity of the liquid.


What is the capacity of Kenmore washer model 110.92586210?

this is use gas or electrical