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What determine the ampacity of a wire?
Conductors must have an ampacity not less than the maximum load that they are supplying.
What is Wire ampacity?
It is a North American electrical term. It is a combination the words amp and capacity rolled into one word "ampacity". When talking about how much amperage a wire can legally draw, it is referred to as the wire's "ampacity".
What is the minimum branch circuit wire size that may be installed in a dwelling?
14 awg
What is the minimum fuse rating is needed for a 12 volt circuit?
No current bro? Depends
What is the Minimum branch circuit wire size in a dwelling?
The minimum size home wiring is #14 AWG, the rating for that size wire is 15 amps.
How do you know if the AC breaker matches the AC unit starting demand load?
Read the literature for the ac condensing unit, or the tag on the outside of the unit. Minimum circuit ampacity= minimum breaker, wire and fuse size. Maximum circuit ampacity= the maximum size. Your circuit breaker, wire size and disconnect fuses should all be at or between those 2 numbers.
What does MCA mean in electrical?
minimun circuit ampacity
What does MCA mean in electrical terms?
minimun circuit ampacity
What is the different between a 200 AMP and a 135?
The higher the ampacity of a circuit, the greater the load can be that is applied to that circuit.
How many ampacity rating do a circuit breaker need for the general purpose circuit?
Usually a 15 or 20 amp breaker is sufficient
Is it legal under NEC to extend a 480 volt 3 phase 20 amp circuit with different size conductors for L1 L2 and L3 as long as the gauge meets the circuits ampacity requirements?
I assume your sizing the 20 amp from the breaker? NEC 240.3 states minimum conductor size for the rated ampacity of the circuit breaker. In this case, minimum size for 20 amp breaker is 12 AWG. I assume you are wiring a motor? I suggest you size your over current in accordance with NEC, start reading around NEC 430.
What is the ampacity of one 24kw commercial range?
I = P/V is the equation. It depends what voltage the circuit has eg. I = 24000/110 or I = 24000/240 etc.
When a parallel LC circuit is tuned to resonance will the current be at a maximum or a minimum?
Inside the circuit loop between the inductor and capacitor the current will be at maximum. Outside the circuit the current through the LC tank circuit will be at minimum. It depends on where you are measuring it.
When the circuit is said to be in resonance?
For a particular frequency if the current or the voltage of the circuit is Maximum or Minimum then that circuit is said to be in resonance .
What parts to circuits have to contain?
The absolute minimum for a circuit is continuity. Without this it is not yet a circuit.
Is a fifteen Amp circuit breaker on a one hundred Amp panel actually de-rated to allow only twelve Amps?
when adding up loads for sizing other conductors such as mains and main breakers, you assume each receptacle circuit is loaded at 80% of circuit ampacity. for a 15 amp circuit, 80% is 12 amps. but you can use all the ampacity you want til you start tripping breakers. if you know ahead of time in designing an electrical service that 80% isn't a good assumption, then by all means, make it bigger.
What is the minium size branch circuit for a fire alarm system?
Are you referring to the circuit supplying power to the control panel or the initiation/notification branch circuits controlled by the fire alarm system? The ampacity of the fire alarm control panel would determine the circuit size of the branch circuit supplying power to the control panel and the terminal on the control panel and fire alarm device would detrmine the size of conductor that it will accept. Most fire alarm control panels would require a minimum 15 amp circuit. The minimum conductor size allowed per the NEC would be 14 AWG. 22 AWG. is the smallest conductor that most control panels and device terminals will accept. These are considered Power Limited circuits.
