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New Electrical Work
Electrical work ranges from the installation of new electrical components to the maintenance and repair of existing electrical infrastructure. It may also include wiring airplanes, ships and other mobile platforms.
4,938 Questions
If the microwaves has 700 watts what is the amp total?
To find an amperage, you divide the wattage by the voltage.
Unavoidable in certain situations. Light fixtures are sometimes mounted in the ceiling - the bulb must then be mounted base up or base horizontal.
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This is a voltage drop question. A voltage and whether it is a single or three phase system must be provided to give an answer.
How much should it cost to install a bathroom light?
If this question said where the Asker lives someone might be able to give an answer!
How can you wire and control 3 lights from 1 switch?
This is simple. First the wire coming from the power supply go to the switch. Then it goes to the first , the second and the third light. Since the switch comes first all three light will be controlled by that one switch.
I am running 120v 30amp service 75' what gauge wire is needed?
The minimum wire size allowable would be 10 gauge. For a 75 foot run however, the voltage drop would be 5.31 volts. This exceeds the NEC recommendation of no more than 3% (3.6v) so while it is not legally required, for best efficiency, you should run 8 gauge.
What is the brightest candelabra base compact fluorescent bulb?
As of 4-12-14 there is a 23 Watt screw in bulb supposedly equal to 100 Watt.
It is likely there are higher watt bulbs in the flourescent screw in type available today.
No, it would not be safe. DON'T DO THIS! If anything went wrong with an appliance plugged into that 15 Amp socket outlet there would be a serious risk of starting a house fire or someone could get electrocuted. The reason is that the breakers on 30 Amp circuits would not cut the power off if an accident happened or something went badly wrong inside an appliance that takes less than half that 30 Amp current. The current draw would be even less if it was a table lamp or something equally small. As you asked this question here you may not really know how to handle household AC power circuits safely, so be sensible: call a licensed electrician to install the correct circuit breaker and the right size of wiring to power any new 15 Amp socket outlets you need in your house, so that you and your family can use them safely.
ALWAYS CHECK WITH YOUR LOCAL WIRING SAFETY OFFICE BEFORE YOU ATTEMPT TO CHANGE ANYTHING
- ELECTRICAL SERVICE PANEL, BREAKERS, CABLES OR OUTLETS -
ON ANY ELECTRICAL POWER CIRCUITS
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
If you do this work yourself, always turn off the power
at the breaker box/fuse panel BEFORE you attempt to do any work AND
always use an electrician's test meter having metal-tipped probes
(not a simple proximity voltage indicator)
to insure the circuit is, in fact, de-energized.
How do you wire a 20 amp 115 volt outlet?
i) the asker is an adult who has no experience of how to extend household power wiring using a safe method which conforms with local wiring codes or regulations;
or
ii) the asker is a student who has to the question in some homework or in an exam paper.
An experienced electrician would not need to ask this question on this site.
This is a very serious subject because if you do something wrong in electric wiring, even a small mistake like putting one wire in the wrong place, it could kill you or someone else.
If this question has been asked by an adult, if you asked this question here because you don't already know enough - if anything - about household wiring to be able to do this job safely and you hope to get enough information on this site to tell you how to do the job properly and safely, the best advice anyone can give you is not to rely on getting accurate information on this site about such a potentially dangerous subject.
It is much better to call a licensed electrician to do this job for you. Correctly sized breakers would then be installed on your main panel (if necessary), the correct size of wiring and the correct kind of socket outlet would be used to do the job and an installation method would be used that is safe and which complies with the wiring codes or regulations in the locality where you live. (Town/State).
If this question has been asked by a student to help get a quick to a science homework question, or for an exam question, the best advice anyone can give you is to encourage you to go your local library and find some books on the subject, so you can learn about it properly and then write your own . That is the way to really learn stuff! It would also be very good experience for you to learn how to do basic research and to such questions by yourself.
Yes.
Can you install a double pole switch in a 120V circuit?
=== === Yes but it is redundant. The only place that you can open the neutral and hot wire at the same time in a North American system is when isolating a load in an explosion proof installation All the rest of the time the neutral remains unswitched. A two pole switch is used on 240 volt loads as code states that both legs must be disconnected from the load. If only one leg is disconnected there will still be a 120 volt potential on the load to ground. <><><> 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.
Black is used for the "Hot" wire.
White is used for the "Neutral" wire.
Green (or bare wire with no insulation) is used for the "Ground" wire.
IF YOU ARE NOT ALREADY SURE YOU CAN DO SOME ELECTRICAL WORK
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
If you do any such work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicatorto insure the circuit is, in fact, de-energized.
Clearance around an electrical panel?
The National Electric Code requires min. 3'0" there are several rules defined in section 110.26 of the NEC; for 600 volts or less it is: * left to right the minimum clearance is 30" or the width of the equipment, whichever is larger * in height, there should be 6' 6'' minimum height to stand in front of the equipment (exception for dwelling units for panels 200 amps or less) * the depth in front of the equipment varies depending on the voltage and surfaces of the opposite wall behind you: if the voltage is 150 volts to ground or less the depth of clearance is 30": as stated above; if the voltage is higher it depends of whether the opposite wall is insulated or not: if insulated the depth is 3' 6", if not insulated (such as cement block) the depth is 48"
I refer to these rules as the "refrigerator rule": the clearance in front of the equipment in question requires a dedicated clear space roughly the size of a large refrigerator
=== === Any socket outlets or wiring to pumps, etc must be protected by a GFCI, not only by the main circuit breaker on the house AC power supply panel.
Sounds like there is water somewhere in the circuit and that is causing the GFCI to keep tripping every time you press the RESET button. The GFCI is doing its job to protect you and your family from electrocution.
Turn off all power at the main panel and then check all wiring, junction boxes, outlets, etc. in the circuit for water. Every part of the circuit must be allowed to dry thoroughly before the GFCI will allow you to reset it. Then be sure to protect any connections in the circuit from getting any water spray or splashes in future.
Really this work should be done by a licensed electrician who will know exactly where to check and what to do to make your electric pool pump - and any socket outlets in the same circuit - safe to use in future.
Is the distance from the panel to the pool very far or long, A ground fault breaker is looking for a difference in potential the longer the distance the more sensitive they become. What you may have to do is put a ground fault outlet by the pump and put the wiring in a regular breaker. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
If you do this work yourself, always turn off the powerat the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicator to insure the circuit is, in fact, de-energized.
Why do you pay for the telephone pole to hookup to electric?
WHO pays for the installation of power and telephone lines to a property that is in a rural area (far from existing utility services) has long been an area of disputes and complaints.
Most utility companies in the USA are regulated and the amounts they charge and the items they can charge for are listed in contracts called TARIFFS. It is the fine print in the tariffs that regulates when and how much they can charge for certain services.
Tariffs may differ between residential and commercial accounts. In some instances the utility comapny will bring service a fixed distance from their existing facilities and the customer has to pay for the rest.
In some areas the customer has to pay for the whole thing.
Exterior electrical disconnect required in sight of the what?
If it is a swamp cooler no if it is a condensing unit then yes. In sight is described as being within 50 feet with clear visibility
If you didn't burn the wire off then the breaker did trip. Sometimes a tripped breaker is hard to see. Go down the whole panel switching each individual breaker off and then on again. This should rectify the problem. A word from the wise, I have been an electrician for 42 years and always shut the power off before working on equipment.
How do you calculate the AMPS for a single family dwelling electrical service entrance?
To figure service sizing requirements you must follow the directions below. If you do not know how to size a dwelling then you should probably be getting in touch with a licensed master electrician. Electricity is dangerous if you do not know what you are doing. Some locations however do allow you to do your own. This work requires a permit in most cases and you should be getting in touch with your local building department before you begin any work!
To get started on calculating a service size for a single family dwelling you must add the following:
Add 3 volt-amperes per square foot of floor area for general lighting and general use receptacle outlets.
Plus
You must add 1,500 volt-amperes per 20-ampere-rated small appliance and laundry circuit.
Plus
You must add the nameplate volt-ampere rating of all fastened-in-place, permanently connected or dedicated circuit supplied appliances such as ranges, ovens, cooking units, clothes dryers and water heaters. There are default numbers here if you have not installed your appliances or you do not have an exact model number and ratting yet. The default numbers would be applicable if you are wiring in an outlet for these.
This will give you a subtotal. Apply the following demand factors to the subtotal.
The minimum subtotal for the loads above shall be:
100 percent of the first 10,000 volt-amperes
Plus
40 percent of any portion of the sum that is in excess of 10,000 volt-amperes
Plus the largest of the following:
1 - Nameplate rating(s) of the air-conditioning and cooling equipment.
2 - Nameplate rating(s) of the heating where a heat pump is used without any supplemental electric heating.
3 - Nameplate rating of the electric thermal storage and other heating systems where the usual load is expected to be continuous at the full nameplate value. Systems qualifying under this selection shall not be figured under any other category in this table.
4 - One-hundred percent of nameplate rating of the heat pump compressor and sixty-five percent of the supplemental electric heating load for central electric space-heating systems. If the heat pump compressor is prevented from operating at the same time as the supplementary heat, the compressor load does not need to be added to the supplementary heat load for the total central electric space-heating load.
5 - Sixty-five percent of nameplate rating of electric space-heating units if less than four separately controlled units. Forty percent of nameplate rating of electric space-heating units of four or more separately controlled units.
This gives you a total volt amperage required. The minimum total load or amps will be the volt-ampere sum calculated above divided by service entrance volts (usually 240V). If you get a number that falls between an available service equipment size then you must go up to the next available size.
These instructions will get you through the calculations needed for the International Residential Code. Your code may vary and it is best to consult you local building official for verification of this information.
Good luck and MOST important… BE SAFE!
Terry
How many amp service do new homes have?
There are too many variables to really answer that question. I've seen new residential (120/240 volt, single phase) services installed ranging from 100 Amps to 400 Amps.
Depends on the home.
Your local electrical code should provide some guidance as to what is the minimum size. If planning a home your electrician can help decide if the minimum required by code is sufficient or if you need to go larger.
IanS
What would happened if you wired a 240v ballast and a 120 v ballast into a heavy duty timer?
The timer has to be multi-pole. The ballast must be connected to the load contacts of the timer. If the timer is a 120 Volt timer, the timer has to run on a 120V. circuit. Loads are loads, and as long as you have a multi-load timer you can hook up whatever you want. If the timer only works on a shared power source (load shares the timer supply) you will need to use a contactor on the load side or the timer.
Can a standard US 110 volt socket sustain 220 volts of electricity?
It could. No problem. But it is no clever idea. The socket would not be harmed, but the appliance almost certainly would.
you probably can't, you need a neutral and a live wire to make a fan work. switches normally only have live wires.
How do you complete a sentence that begins with 'Electrical wire sheathing should not'?
Electrical wire sheathing should not project more than about one inch into the electric panel.
It depends on what else you are running in the house. Add up your amperage to see if it is more than the 125amp rating. Which should be below 105 amps constant to keep from overheating the main breaker. If you are not running a big central ac system or a electric oven and water heater you should have no problem running the hot tub.
