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"... the rating of the overcurrent device shall not be less than the non-continuous load plus 125% of the continuous load."
NEC 2008 Article 210.20(A)
Furthermore, the ampacity of the conductor must be derated to 80% of allowable ampacity as stated in Table 310.16. Please take note of the exception to the table for #14 AWG, #12 AWG, and #10 AWG in Article 240.4(D) which automatically derates small conductors such as these to 15A, 20A, and 30A respectively.
Also be aware of all other ampacity derating that may be required by Article 310 and Article 422.
What else can I help you with?
What is calculated load?
A calculated load in electrical terminology is the sum of all of the loads that are connected to a system. To size a service distribution for a home all of the connected loads have to be calculated in. Some loads can be derated as per the electrical code. When the total amperage is calculated from the sum of all of the loads, the wire size and distribution can be sized to handle the calculated load.
A circuit in which loads are connected side is called?
Loads are connected side
What is the maximum no continuous load that can be connected to a 2AWG type THHN conductor?
The maximum continuous load that can be connected to a 2 AWG THHN conductor, according to the National Electrical Code (NEC), is typically 100 amps. However, for continuous loads, which are defined as loads that operate for three hours or more, it's advisable to apply a derating factor. This means you should limit the continuous load to 80% of the conductor's ampacity, resulting in a maximum continuous load of 80 amps for a 2 AWG THHN conductor. Always consult local codes and regulations for specific requirements.
How are the loads in parallel circuit connected?
Parallel to each other.
What are the voltages that the secondary distribution center can provide to the loads connected to it?
120/208VAC
What percentage a rated breaker can you use?
A breaker can typically be loaded to 80% of its rated capacity for continuous loads. For example, if you have a 20-amp breaker, you should limit the continuous load to 16 amps. However, for non-continuous loads, you can utilize the full 100% of the breaker's rating. Always consult local codes and regulations for specific guidelines.
What is a circuit in which loads are connected side by side?
A parallel circuit is a type of circuit where loads are connected side by side. In a parallel circuit, each load has its own path to the power source, allowing them to operate independently of each other. If one load in a parallel circuit fails, the others will continue to function.
Why there should be difference in actual loads and theoretical calculated loads?
The theoretical loads being calculated should be higher than the actual loads that will be used in reality because the weight capacity of a structure, vehicle etc. should exceed the amount of weight it is intended to actually hold. This is true for any type of load, driveshafts, shirt buttons, whatever.
What is continuous load?
Continuous load refers to an electrical load that operates for three hours or more at a given rating. It is important in electrical system design and safety calculations, as it helps determine the appropriate sizing of conductors and protective devices. In practical terms, continuous loads can include lighting, heating systems, and other equipment that is consistently in use during operation. Properly accounting for continuous loads ensures reliable and safe electrical performance.
What technology automatically loads the driver when a printer is connected to a Windows XP computer?
plug and play
what Type of circuit is one in which all loads are connected in one single loop?
series circuit
What is the Definition continuous load?
A continuous load is an electrical load that is expected to operate continuously for three hours or more under normal conditions. It is typically used in electrical engineering to determine the capacity and ratings of electrical equipment and circuits. Continuous loads are important for ensuring safety and efficiency in electrical systems, as they affect the sizing of conductors and protective devices. When calculating load demands, continuous loads are often considered at 125% of their rated value to account for potential overloads.
