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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
Craig,
Please refer to Australian Standard AS3000:2007 for the answer.
How do you wire breaker box to earth ground rod?
ITS NOT TO COMPLICATED REALY, YOU NEED A HOLE BIG ENOUGH FOR GROUND WIRE GOING OUT TO PASS THROUGH THE BOX, IF IT IS FOR A BREAKER PANEL IT SHOULD HAVE AN ADAPTER THAT HAS THE INSERT THROUGH THE BOX WITH A LOCKING NUT AND A BUSHING ( PLASTIC ) THAT KEEPS THE CABLE FROM GETTING DAMAGED FROM COMING IN CONTACT WITH METAL BOX. THERE SHOULB BE A GROUNDING BUSS IN THE BOTTOM OR ONE OF THE SIDES THAT HAS THE ATTACHMENTS FOR THE GROUNDS FROM 1 TO WHO NOWS HOW MANY DEPENDING ON HOW MANY GROUNDS YOU WILL NEED.( ONE BIGGER GROUND WIRE COMING IN TO BUSS BAR, SEVERAL( DEPENDING) SMALLER WIRES COMING FORM THE FEEDS THROUGHOUT THE STRUCTURE. )ONCE YOU GET BUSS AND INCOMING GROUNDS, THE ONE THAT ATTACHES TO THE GROUND ROD AND THE WIRE ( BE SURE TO PUT THE ACCORN CLAMP ON BEFORE YOU PUT THE GROUND ROD INTO THE GROUND , IN CASE IT GETS MUSHROOMED DOWN FROM DRIVING IT INTO THE GROUND) USE WATER IN THE HOLE , RAISE THE GD. ROD UP AND DOWN KEEPING THE HOLE FAIRLY WET . IF IT IS JUST DIRT IT WILL GO IN REAL EASY, IF THERE IS ROCKS AND ETC. IN HOLE YOU WILL HAVE TO DRIVE IT IN. THE FURTHER GROUND ROD GOES IN THE BETTER. 10 FEET IS THE COMMON LENGTH FOR THE ROD TO GO INTO THE DIRT .ATTACH THE WIRE TO THE ROD WITH THE CLAMP YOU PUT ON PRIOR TOO AND YOU HAVE GOT IT.
Do you need a licenced electrician to hang conduit for low voltage cable?
In most places, for residential, no. For commercial, most jurisdictions require a contractors license for anyelectrical work. Where I live, there is a low-voltage license that is less than a full-blown electrical license that is used by fire alarm, security, and telecommunications contractors. The NEC and most jurisdictions define low voltage as less than 30 volts. Check with your local building department to be sure!
What Distance between electric earth point out building?
how long distance of electric earth cable , between point or manhole ,what calculation to make good earthing in building how long distance of electric earth cable , between point or manhole ,what calculation to make good earthing in building how long distance of electric earth cable , between point or manhole ,what calculation to make good earthing in building
How do you wire receptacles in series?
Receptacles are not wired in series. Receptacles are actually wired in parallel, what this means is that all phase wires (black) in a receptacle's box should terminate to the brass screws on each device, and all neutral (white) wires in the box should terminate on the silver screws on each device.
What causes all wall receptacles in one room to stop working?
The circuit probably tripped because too many things were plugged into the receptacles or there is a short in the wiring that leads to that area. If you can find your circuit box, look to see if any of the little switches appear to be in the off position. Unplug everything from those receptacles. Flip the switch to the on position. If it stays in that position, plug everything back in one thing at a time until something trips the circuit again. (If you are able to plug everything back in, it may have been a power surge that tripped the circuit. )
If the switch will not stay in the on position even if nothing is plugged in, call an electrician. Those circuit breakers are there for safety.
Sorry, but you're going to have to ask about a specific gland.
How do you rewire a 110v RV generator ONAN to produce 220v for backup power for your house?
yes you can use. but you need to install 110v to 220 volt step up transformer .
It depends on the generator. Some are 120 only. Need full model and serial number to help you.
How many watts load can you use with a 30amp trailer?
It depends on the voltage of your electrical system. The basic formula is watts = volts X amps. So, if your voltage is 120V then the absolute maximum watts available would be 3600 (30 * 120 = 3600). Note that this is the point at which the breaker would trip, so you could not count on 3600 watts for more than a few minutes. A good rule of thumb is to limit your normal load to 80% of the maximum available. In this case, 80% of 3600W is 2880W. If you put a frozen dinner in the microwave for 5 or 6 minutes and happened to push the watts up to, say, 3500, you would probably get away with it. But try the same trick with the air conditioning that runs for an hour or two and you will trip the breaker. Keep the watts below 80% and you can run forever.
Electrical wire gauge versus amps table?
Look up or Google this: National Electrical Code Table 310.16 This is the table you are looking for. You can find a link by following the related question below.
What is the height of a light switch above a kitchen countertop?
usually most light switches sit between 42'' and 48''
When is it required to bond a junction box?
If a junction box is part of an electrical conduit system then it is required to be bonded so as to make the whole electrical conduit system continuously conductive.
How do you install an electrical home thermostat?
The easiest way is to follow that specific manufacturer's instructions. If you don't have them, try searching their web site online, or calling their tech support number for a copy of the instructions. The reasoning behind this is that many thermostats are slightly different, and there are also some types that are totally different. There is no single answer.
Can you add a 110 outlet from one leg of the 220 wiring?
Yes but I would not advise it. Get 110 volts somewhere else.
What are the function of different parts of VOM?
The VOM is in the classification of a multimeter. This means that the one meter can do several functions. VOM stands for Volt Ohm meter. In the voltage portion, the meter has the ability to measure a variety of voltages from fractional usually up to 1000 volts. This is both AC and DC voltages. In the ohms portion, the meter has the ability to find the resistance of components. On most good multi meter there is a continuity setting that will have a sound emitted if what you are testing has continuity through it. That setting is very useful in troubleshooting control panels to locate open and closed contacts in energized and de energised relays.
What is the Household wiring color code?
On a 110 volt circuit, Black is hot, White is neutral, Green or bare Copper is ground. . Connect Black to the gold screw, White to the silver screw, and bare copper ground to the Green ground screw on the receptacle. On a 220 Volt circuit Black & Red are both hot, each carrying 110 volts for a total of 220. White is Neutral and ground is Green or bare copper.
Do you need a mast to run aerial wire from a garage with a 100 amp fuse box to an office trailer?
Yes, it must have a standoff, and the proper service head in. I would run it underground instead of overhead. Use underground wire in a conduit.
How do you convert from dc battery to ac power?
If you don't know how to do this, then you shouldn't be doing it. Hire a qualified electrician.
To get AC out of a DC supply, you must use an inverter. This is a special type of circuit that produces a sinusoidal wave. They are available in sizes ranging mW to MW.
I can't buy the high-power ones, and I'm an Electrical Engineer. That should tell you something about the potential danger involved here.
Why do you need a 125 amp breaker for a 83 amp furnace?
If you put a 85 amp breaker in there it will overheat from the starting and stopping of the motor. The extra size of the breaker insures that the furnace will run without interruption and without overheating the breaker. And electric motor can draw three times the amperage rated on start up momentarily. This is why there is need of extra amperage ratings.
You don't necessarily have to size all wire from the 60c column. However there are three main reasons to do so: 1) The circuit breaker is marked "60/75c" and installed with other breakers in a panelboard 2) Your appliance is not specifically marked for a higher rating (either 75c or 90c) 3) Any part of your circuit is rated at 60c (explained below) In order to use a rating, whether it be 60c, 75c, or 90c, the enclosure, circuit breaker, conductor, and terminals must be rated for use at that rating. This process follows a 'weak link' method, and the rating of the 'weak link' must be used when using Table 310.16. Example: If you have a panelboard rated 75c, a breaker rated 75c (not 60/75), a conductor rated at 75c, and equipment (such as the range) rated at 75c, you are allowed to use the 75c column. If any component is rated lower, everything must be used at that lower rating. **If there is no explicit marking on the range indicating use at 75c or 90c, the range is assumed to be 60c. The same is applicable to all loads.** There is a special circumstance with breakers marked "60/75c"...
If you have circuit breakers marked "60/75c", and they are installed together (such as in a 42 circuit panel), you must use the breaker at the 60c rating, and thus size your wire using the 60c column. If the breaker in question is in an enclosure by itself, again marked "60/75c", you may use the breaker at its 75c rating. Check the ratings of the enclosure, breaker, conductor, and terminals, and you may be able to use a higher rating than 60c. (XHHW is rated at 90c in dry and damp locations, and 75c in wet locations.)
Electrical energy can be measured in units called what not watt?
All forms of energy are measured using the same units. The SI unit for energy is the joule (J). However, the unit used by electrical utility companies is the kilowatt hour (kW.h).
How do you install a 3 phase electrical service?
The same as a split single phase service, except with 3 phase panelboards, and the size of the service equipment can differ greatly. If the service voltage is 480v, you'll have to install your own transformers to use 120v equipment. I'm not sure as to the purpose of this question. If you're trying to do it yourself, you probably shouldn't have to ask how. It's a pretty large thing to do. If you're just curious, the above answer should suffice.
