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How many lighting branch circuits are provided in this dwelling?
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Can i use a 220 volt ac in the basement to run branch circuits for 110 volt lighting?
Yes, you can use 220V to 110V step-down transformers for this purpose.
Does Europe use 20A branch circuits?
no
What is a load side of the panel?
It is where the black wires are connected for branch circuits.
Is it legal to have a 220 volt branch circuit?
The answer will depend on where in the world you live and the local adopted electrical code. In the US, generally yes, 220V branch circuits are legal. Most electric ranges, electric water heaters and house air conditioning units require 220 (actually nominal 240) volts, and are fed from a branch circuit. There are limitations and exceptions. For instance, the NEC ( 210.6(A) ) limits the following branch circuits to 120 volts nominal: In dwelling units, guest rooms or guest suites of hotels, motels and similar occupancies, the voltage shall not exceed 120 volts, nominal, between conductors that supply the terminals of the following: 1. Luminaires (lighting fixtures) 2. cord-and-plug connected loads 1440 volt-amperes, nominal, or less or less than 1/4hp. NEC (2005) article 210.6 covers branch circuit voltage limitations.
What is the minimum branch circuit wire size that may be installed in a dwelling?
14 awg
How do you determine the number of branch circuit for lighting load?
An engineered set of blueprints will have all of the pertinent information about circuit loading and circuit numbers and panel balancing already calculated. If there is no wiring schedule on the print then you refer to the electrical code book and abide by the regulations that are set out for circuit loading and the amount of devices that can be connected to that circuit. Single family dwelling: multiply the number of square feet by 3. So a 2500 sq ft home times 3 = 7500 watts. Divide that number by 1500 for #14 wire circuits or 2000 for #12 wire circuits. 7500 divided by 1500 = 5 #14 wire circuits or if divided by 2000 + 3.75 or 4 #12 wire circuits. This would be for the lighting load and general use receptacles through out the home. I always lay my circuits out where a circuit only covers 500 sq ft of the dwelling.
Can i use a 220 volt ac in the basement to run branch circuits for 110 volt lighting?
Yes, you can use 220V to 110V step-down transformers for this purpose.
Explain a Branch Circuit?
i want the details regarding the branch circuits
What is the code ruling in the US on 3 phase branch circuits and the neutral?
A three phase system will have 3 phase branch circuits and no neutral.
Does Europe use 20A branch circuits?
no
How are branch circuits rated?
By the rating of the overcurrent device.
What size conductors are to be used small appliance branch circuits?
All small appliance branch circuits, typically kitchen, are required to be 12awg. Cu., or 20 amp.
What ampacity should branch circuit conductors have?
Branch circuits wire sizes are governed by the connected load amperage of the circuit. The wire size ampacity then governs the size of the breaker that is used to protect the circuit from overloading. For general home wiring circuits the conductors used are, receptacles and lighting #14 - 15 amps, dedicated circuits load dependant, hot water tank and baseboard heaters #12 - 20 amps, clothes dryer #10 - 30 amps, range #8 -- 40 amps.
Is it legal to have a 220 volt branch circuit?
The answer will depend on where in the world you live and the local adopted electrical code. In the US, generally yes, 220V branch circuits are legal. Most electric ranges, electric water heaters and house air conditioning units require 220 (actually nominal 240) volts, and are fed from a branch circuit. There are limitations and exceptions. For instance, the NEC ( 210.6(A) ) limits the following branch circuits to 120 volts nominal: In dwelling units, guest rooms or guest suites of hotels, motels and similar occupancies, the voltage shall not exceed 120 volts, nominal, between conductors that supply the terminals of the following: 1. Luminaires (lighting fixtures) 2. cord-and-plug connected loads 1440 volt-amperes, nominal, or less or less than 1/4hp. NEC (2005) article 210.6 covers branch circuit voltage limitations.
What is a load side of the panel?
It is where the black wires are connected for branch circuits.
What is the minimum branch circuit wire size that may be installed in a dwelling?
14 awg
What is the minimum branch-circuit wire size that may be installed in a dwelling?
14 awg
