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Electrical Wiring
Ask questions here about proper wiring and electrical installation here.
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ETL stands for "Extract, Transform, and Load." It is a process used to collect data from various sources, transform the data into a format that can be loaded into a target database or system, and then load the data into the target system for analysis and reporting. The goal of ETL is to make it possible to combine data from different sources and make it easily accessible to users in a format that is useful for their needs.
An ETL tool is software that facilitates the ETL process. It typically includes a range of features and functionalities that allow users to collect data from various sources, transform it into a format that can be loaded into a target database or system, and then load the data into the target system for analysis and reporting.
Some common features of ETL tools include:
Data extraction from various sources such as databases, files, and APIs
Data transformation capabilities, such as data cleaning, data mapping, and data validation
Data loading capabilities, such as support for different data formats, data quality checks, and error handling
Scheduling and automation of ETL processes
Monitoring and reporting capabilities to track the status of ETL jobs.
Some examples of ETL tools are:
iCEDQ Tool
Querysurge
IBM DataStage,
Talend Open Studio,
These tools can be used to perform ETL operations on various types of data such as structured, semi-structured, and unstructured data.
A 120 V general-purpose house circuit should have circuit breakers or fuses with values of?
The fuses and/or breakers in a home should be matched to the circuits. A qualified electrician can help you make the proper calculations.
Do not attempt repairs or modifications if you do not have adequate knowledge about electricity or proper electrical construction practices.
Mistakes can be fatal or at best, expensive. You can burn down your house or electrocute yourself or others.
How does electricity cause harm in the workplace?
Electricity does not cause harm in the workplace. With all of the proper safety rules being followed and safety equipment being worn and safety guards in place, there is no greater risk than anything else within the workplace.
Does electricity travel through wood?
Wood is a good insulater not conductor. metal is a good conductor not insulater,for the same reason.metal has free electrons and wood does not. Lighting will destroy a tree because of the huge amount of electric current but ordinarily it have no affect.
A reversed polarity is when the hot and neutral are wired backwards?
Yes in AC circuits the terminology reversed polarity means the hot and neutral are reversed to what they should be. In DC circuits reversed polarity means that the positive and negative terminals are reversed to what they should be.
How much energy does nuclear energy produce?
A heavy nucleus is split by a neutron which can pass the Coloumb barrier because of its lack of electrical charge. Nuclear fission releases energy . During each fission reaction some mass is converted to energy with accordance to E=mc2 The heat energy is usually carried by the fission products. It heats water or another moderator (eg. carbon dioxide) which is then used to heat water to turn it to steam, which drives a turbine which drives a generator which produces electricity because of electromagnetic induction. On average, each fission event releases approx. 200 MeV of energy, while most oxidation reactions (eg. burning fossil fuels) release only few eV per event.
200 MeV = two hundred million eV
eV = 1.60217653(14)×10−19 J
Nuclear fusion releases energy by binding light nuclei together, rather than separating them. It is vital to notice that only fusion of light nuclei is exothermic (it releases energy), while fusion of heavy nuclei is endothermic (it "consumes" energy).
Fusion also releases energy. It is even more energetic than fission, but harder to achieve. It occurs naturally in stars.
What is the need to conserve electricity?
we whant to conserve electricity because of how it is made especialy if its made by coal wich is slowly killing you! we whant to conserve electricity because of how it is made especialy if its made by coal wich is slowly killing you!
Why is special fire fighting equipment needed for electrical and non electrical fires?
Water conducts electricity and is therefore contraindicated for use on energized electrical equipment, however it is much cheaper than the chemicals that can be used on energized equipment making it more economical when water is able to be used. Similarly water should not be used on grease fires as it will spread out the grease and the fire rather than smothering it. Water if pure without contaminants does not conduct . Having stated that electrical fire can hardly be contained by water since the air itself will conduct electrons by ionization. So to contain an electrical fire a the oxygen must be removed and water will not do that.
What is a reusable safety switch that breaks the circuit when the current gets too high?
In the electrical trade, this device is known as a circuit breaker.
What are the uses of the flat head screwdriver?
A flat or "straight" head screw driver is designed to fit screws a compatible indentation on the head of said screw.
note: an advantage of a flat head is that it allows for more torque to be applied, as there is less room for it to move, and has to scalable edges like a Philips head.
What is the difference between Foxtel IQ and Foxtel IQ2?
The difference is only that Foxtel IQ2 has more features than any other set top box and can watch in HD (High Definition) and has double space for recording than Foxtel IQ with a massive space of 320GB.
Here is my full question -
A typical 120-volt household circuit delivers 350 watts of power to an appliance, and another 10 watts of power are consumed by the circuit. There is no ground fault. a. How much current is carried by the hot wire? b. How much current is carried by the neutral? c. How much current is carried by the grounding conductor? d. Calculate the resistance of the circuit:
by "consumed by the circuit" I assume you mean consumed by the wires. Assuming resistive loads only, the total load is 360 watts, thus the current is 3 amps. The current flows in the hot and the neutral.
What piece of equipment is used to produce electricity?
Some possible answers are: a battery (which produces direct current) or a generator of electricity generator, such as a dynamo (which produces direct current) or an alternator (which produces alternating current).
How do you calculate voltage drop in a cable?
The answer to this question is simply ohms law. For most cables the resistance of the cable per meter will be defined by the manufacturer, so firstly multiply this by the length of the cable you are using.
Then apply ohms law V=IR. This will give you the voltage drop across the cable.
In most cases for domestic use, this value of R is so small the voltage drop is negligble, though using a cable with the lowest value R will give you the lowest voltage drop for any application.
If you're referring to a voltage drop in an Electrical Network the calculation becomes abit more complex and involves solving some implicit and explicit equations (assuming you know the voltage and power factor at the sending end and the real and complex powers consumed at the receiving end). If you wish to know more about this calculation let me know.
THIS CONSIDERATIONS SHOULD BE STRICKLY FOLLOWED: SOUND ENGINEERING AND ACCEPTABLE ECONOMICS;
1.DEFINE DEMAND LOAD - AFTER APPLYNG POWER FACTOR AND EFFECIENCY FOR MOTOR LOADS AND ACTUAL SYSTEM VOLTAGE AND PHASE.
2. ONE WAY LENGTH OF WIRE OR CABLE - FT. (AWG) OR MTR. (SQ.MM) SELECTION
3. MULTIPLY BY 125% TO THE CALCULATED LINE CURRENT TO GET AMPACITY REFERENCE
4. LOOK OR SELECT THAT NEAREST RESULT TO ANY LOCAL CABLE SUPPLIER CATALOGUE OR NEC TABLES AND MATCH IT TO CORRESPONDING CABLE SIZE.
5. APPLY DERATING FACTORS - ALSO AVAILABLE TO NEC OR CABLE SUPPLIERS AND DEFINE THE FF:
A. MEDIUM OF INSTALLATION - PVC OR RSC CONDUIT, CABLE TRAY OR CABLE LADDER OR TRUNKING, THROUGH, ETC.
B. AMBIENT TEMPERATURE - INDOOR OR OUTDOOR?
C. GROUP FACTOR - CONSIST OF CABLE SPACING AND DISTANCE TO WALL OR INSIDE CONDUIT INSTALLED IN TRAYS OR UNDERGROUND
6. APPLY DERATION IN WHICH RESULT IS LESS THAN ONE (1) TO THE PRE-SELECTED CABLE - THIS IS NOW YOUR ACTUAL FOR SELECTED CABLE
7. DEFINE REQUIRED OR ACCEPTED VOLTAGE DROP IN PERCENT VALUE
8. NOW USE THIS FORMULA:
VDapp(APPLICABLE VOLTAGE DROP) = %Voltage Drop x Actual Voltage x 1000 divided by Derated Current x One Way Length x 100
9. THE RESULT WILL HAVE A UNIT OF -- mV/A.Mtr OR MILLIVOLT PER AMPERE-METER
10. NOW COMPARE IT TO AVAILABLE TABLES FOR VOLTAGE DROPS OF CABLES - IF IT IS LOWER THEN SELECT THE NEXT SIZE OR WHICH EVER MEET THE REQUIREMENT.
you'll need to know the resistance of the conductor. copper has a certain amount of resistance per length. there are charts available on this
What type of electrical outlets are used in Sydney Australia?
In Australia they use Type I plugs and sockets for their standard household electricity supplies. For more information see the Related Link shown below and also the answer to the Related Question.
Where is the heating element in a dryer?
If the element has failed you will still have 240V going to the element itself: it just won't be causing the element to heat up.
Make sure the dryer is unplugged!
Then take the back off the dryer and pull the element out - it's usually held by just a few screws.
BEFORE YOU UN-CLIP THE WIRES FROM THE ELEMENT write down which wires for the element go where. The wires have clips that will slide right off the element.
Take it to your local hardware or appliance store with the dryer's make, model number and serial number. (That information can be copied from the appliance's rating plate which is may be on the back panel and/or may be fixed just inside the front door.)
Buy a new element which is an exact replacement for the old one and put it back into the dryer in the reverse order that you took out the old one.
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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.
What are the 5 ways on how to utilize electricity at home?
Just think about what things you connect to an outlet.
You can heat the house with an electrical heater, cool it with an air conditioner, move the air around with a fan, power all kinds of electrical lights (like light bulbs, neon lights, LED lamps, etc), cook with a microwave, open your garage door with an electrical motor, use a computer, etc.
How do you use 120V equipment on 240V?
The short answer is: you can't. The long answer is: just like using a flashlight bulb that has a voltage that is half the voltage of the battery, it will not work. It will take too much current, causing it to burn out and be useless.
How far are electricity poles apart?
The route for an overhead electricity line is surveyed to provide a profile (gradients) of the route -including any obstacles (roadways, rivers, outbuildings, etc.). Wherever possible, individual poles are placed where they will cause the least obstruction to farmers' machinery, etc. Ideally, means utilising natural or man-made features -e.g. following hedgerows, stone walls, etc. But, ultimately, their locations and, therefore, their distances apart, depend upon ensuring that the conductor sag remains above the minimum safety clearance, allowing for changes in temperature, ice loading, etc., and taking into account the profile (gradients) of the land and obstacles along their route. This is determined by a combination of the heights of adjacent poles and their distances apart and gradients/obstacles between. For routes across open, flat, countryside, the poles are likely to be roughly equidistant but, for route profiles that vary considerably in height, with obstacles, these distances can vary considerably.
How do you clean lint from a dryer?
You should first REPLACE your exhaust hose if it has been on your dryer for more than a year. Not clean it out but REPLACE it. This not only prevents fires but also keeps your dryer at optimal performance.
Also, every 3-4 years, unplug the dryer and remove the back of it (it's just a metal panel, don't be afraid) and clean all the lint out of there.
Using a pair of dryer balls helps to dry clothes faster. Give them a try!
<><><>
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.
