A

**dead short**is when an electrical circuit has zero resistance. This can result from the "hot" electric feed coming in contact with a metal object, like a metal outlet box or with the ground or neutral wire. Your initial sign that you may have a**dead short**will be a tripped breaker.What does short to power mean?

**Short**to ground, just

**means**to have a direct connection to Ground. A "

**short**" is any direct connection between two nodes. In any circuit, technically, you have

**shorts**everywhere, but the term "

**short**to.." is generally used for ground or some

**power**node.

1

## Do home circuit breakers go bad?

If the switch flops back and forth and there is not definite “on” or “off” position, the

**breaker**is probably**bad**. If the circuit**breaker does**NOT trip immediately: Chances are you have an overloaded circuit, meaning that the circuit has more electricity flowing through it than it is rated for.2

## How many outlets can be on a 20 amp circuit?

One rule of thumb is to assign a maximum draw of

**1.5**amps to each receptacle, which allows for**10 receptacles**on a 20-amp circuit.3

## How many electrical outlets can be on one circuit?

I'm ask so many times how many outlets and or lights can I put on a 15 amp or

**20**amp breaker. Well NEC code does not have it listed that way. By rule of thumb you would stick with 8 to**10 outlets**and or lights per breaker. Now this is of course they are 120 volts 60mhz (USA or Canada).4

## What size wire do I need for a 20 amp breaker?

12-

**gauge wire**is the next**size**larger and is allowed to carry up to**20 amps**. As a result, the**amp**rating of a**circuit**breaker has the following relation to the**wire size**that has been chosen. A**20**-**amp**breaker is never* allowed to run any**circuit**whose**wires**(anywhere on the**circuit**) are 14-**gauge**.5

## Can you use a 20 amp breaker with 14 gauge wire?

NEC 240.4(D)(3) states that

**14**AWG must be protected at 15A.**You can**not**use 14**AWG anywhere on a circuit that has a 20A**breaker**. If**you**are putting 15**amp**receptacles on a**20 amp**circuit with 12**gauge wire**, then**you**MUST**use**the screw terminals, not the back stab terminals.6

## How many lights can you put on a 20 amp circuit?

For 20 AMP you have 20A*120V or

**2400**watts and**15**AMP you have 15A*120V or**1800**watts. Good Electricians will only plan for**80**% load so you have 1920 and**1440**watts respectively at your disposal per circuit. Next, find out what's on the circuit. To do this, leave the lights on that you want to connect to.7

## How many outlets can be on a circuit?

I can do the simple math: 180va (or 1.5 amps) per general use receptacle gives a limit of

**10 receptacles**per**15**amp circuit or**13 receptacles**per**20**amp circuit.8

## How many can lights to put in a room?

To determine how far apart to space your recessed lights, divide the height of the ceiling by

**two**. If a room has an**8**foot ceiling, you should space your recessed lights approximately**4**feet apart. If the ceiling is 10 feet, you'll want to put about**5**feet of space in between each fixture.9

## How many can lights do I need in a bedroom?

The typical rule-of-thumb is 24" from each wall, and then

**3-5**feet between cans. So in a**12**' room you'd probably want**two**rows of lights. Considering it is a bedroom and you don't need it as bright as a kitchen, you can probably get away with**2**rows of**4**lights for a total of 8.10

## How many lumens do you need to light a room?

For the average living room of 250 square feet, you'll need

**5,000 lumens**as your primary light source (**20 lumens**x 250 square feet), equivalent to about five 100 watt incandescent light bulbs, five 23 watt CFLs, or eight 10 watt LED light bulbs.11

## How much light do you need in a room?

So if you have an 18' long

**room**x 12' wide**room**multiply times 1.5 = 324 watts, that's**how much**wattage is needed to adequately**light**the**room**. You can divide that lighting into more than one source. 2 Lamps @ 150 watts each and 1 lamp @ 60 watt would be more than adequate**light**for the**room**.12

## How much light is 600 lumens?

Lumens to watts table

Lumens | Incandescent light bulb (watts) | Fluorescent / LED (watts) |
---|---|---|

375 lm | 25 W | 6.23 W |

600 lm | 40 W | 10 W |

900 lm | 60 W | 15 W |

1125 lm | 75 W | 18.75 W |

13

## How much light is 2000 lumens?

Energy Star Bulbs

Watts (energy usage) | Lumens (light output) |
---|---|

60 | 800 |

75 | 1100 |

100 | 1600 |

125 | 2000 |

14

## How much light is 800 lumens?

Lightbulb Watt-to-Lumen Conversion Guide

How Much Light Do I Need? | |
---|---|

Incandescent Bulbs WATTS | Minimum Light Output LUMENS |

40 | 450 |

60 | 800 |

75 | >1,100 |

15

## How many watts is 2500 lumens?

Lumens to watts table

Lumens | Incandescent light bulb watts | Fluorescent / LED watts |
---|---|---|

600 lm | 40 W | 10 W |

900 lm | 60 W | 15 W |

1125 lm | 75 W | 18.75 W |

1500 lm | 100 W | 25 W |

16

## How many lumens is a 60 watt LED bulb?

If you want something dimmer, go for less lumens; if you prefer brighter light, look for more lumens. Replace a 75W bulb with an LED bulb that gives you about

**1100 lumens**. Replace a 60W bulb with an LED bulb that gives you about**800 lumens**. Replace a 40W bulb with an LED bulb that gives you about 450 lumens.17

## WHAT LED bulb equals 60 watts?

LED Light Bulbs - 60 Watt Equal. With an efficiency up to 80% higher than similar output incandescents, it is certainly safe to say that LED light bulbs like the 60-watt equivalent use less energy than similar

**incandescent**bulbs. You can be sure this is the case thanks to the "60 Watt Equal" in the bulb's name.18

## Can I replace a 60 watt bulb with a 100 watt LED?

If your socket says not to exceed

**60**-**Watts**, it is referring the dangers of high heat output associated with incandescent**bulbs**. However,**LED's do**not emit dangerous levels of heat. Thus, if your fixture says “not to exceed**60**-**Watts**” but you want to use a**100**-**Watt**equivalent**LED bulb**, this would be safe to**do**so.