Lights and outlets are normally wired on separate branch circuits, which means that the lights will be protected by a separate circuit breaker to the one which protects the outlets.
Asking how many lights can go on a branch circuit is like asking "How long is a piece of string?". It is impossible to give a general answer because the total number of lights that can be installed will depend on the wattage and amperage drawn by each light and on whether or not they will all be switched on together at the same times of day or night.
If you cannot work out the total amperage of the lights you want to use at any time, compared to the safe load current of the circuit breaker on your lighting circuit, the best advice anyone should give you is to call a licensed electrician for advice.
Outlets
The number of outlets on a 15 or 20 amp circuit depends entirely on what you will plugging into those outlets. If you are plugging in an appliance that will pull 10 amps then you cannot also plug in another one taking 15 amps!
Many different combinations are possible, for example a 15 amp circuit may have 15 outlets but only 2 are being used at any one time, such as a floor lamp and a TV.
Generally speaking, most homes have 8 to 10 outlets per a 15 amp circuit. Not all outlets are used at the same time, a lamp here, a TV there, not too much. Regarding lights, you need to add up all the amps pulled by all fixtures on that circuit. The total amps pulled should not exceed 80% of the circuit breaker's maximum amperage.
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There is an allowance of 1800 watts per outlet for 15 Ampere 120 volt convenience outlets ans 2400 watts per outlet for 20 Ampere outlets.
It is required that a continuous load [operating over 4 hours] be served such that the circuit is not loaded past 80% of its capacity, which would allow a continuous 16 amp load on a 20 amp circuit. If there were 2 loads planned, the combined continuous load could not exceed 16 amps between both devices.
See NEC [NFPA 70, 2005 edition - National Electrical Code (c)] Article 210, sections 210.20, 210.21 and 210.23. The NEC does not specify a maximum number of outlets per circuit.
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS
yes
If by "60 amp box" you mean a 60-amp service panel (circuit breakers or fuses), you would generally get a 60-A panel that has several slots designed to accept a variety of compatible breakers, from 15A to 60A. If you have a "box" with no breakers, you would need another "subpanel", with wires from the 60A box to the new subpanel, and install one or more 15A breakers in the subpanel. If you don't need more than one breaker, you might also simply use a 15A disconnect panel with a single breaker in it.
For the US, the two common values are 15 and 20 amps, with 20 being the most common in newer homes and 15 more common in older homes. Which one is used is determined by what size of wiring is run. 15A breakers feed 14 AWG wire, and 20A breakers must use 12 AWG or larger. If you simply replace a 15A breaker with a 20, you will create a fire hazard.
Inside the car, near Driver's left foot fuse panel Marked as "15A power outlet"
No, when wiring for 220v, you should use a ganged 30A breaker to ensure safe and proper functioning of the circuit. Using two 15A breakers is not recommended as they may not trip simultaneously in an overload situation, potentially causing damage to the circuit or appliances.
A 15a circuit can supply approximately 1650 watts, so 1650/65=25. I would stop at 20.
Tthe dashbord lights and tail lights are on the same circuit. On my 2000 Xterrra the 15a fuse is located in the fuse panel under the hood labeled 'TAIL'.
It is recommended to wire a maximum of 10-12 outlets on a 15A breaker to prevent overloading and tripping. However, the actual number can vary based on the specific electrical load of the devices connected to the outlets.
24) 15A fuse lights: turn/hazard (also fuse 4) 25) NO USE!!
Sixth fuse slot in the upper row of the under dash fuse box. 15A (blue)
Your tail lights are on a separate circuit. Check the 15A fuse under the hood in the power distribution center, next to the battery.
BS1361 fuses come in a standard size of 25mm in width and varying lengths depending on the current rating of the fuse. Common current ratings for BS1361 fuses are 5A, 15A, 20A, and 30A.