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What size ground rod for 1200amps service?
For a 1200 amp service, the National Electrical Code (NEC) typically requires a grounding electrode system that includes a ground rod of at least 5/8-inch in diameter and a minimum of 8 feet in length. If using a copper rod, it should be at least 5/8-inch in diameter. Additionally, multiple ground rods may be required if the resistance to ground exceeds certain limits, so it's important to consult local codes and a qualified electrician for specific requirements.
If you don't ground equipment that requires it what will happen?
It depends on the equipment. The problems can be anything from a risk of electrical shock to semiconductor failure.
Are electromagnets used in generatorsto transform mechanical energy into electrical energy?
This requires magnets in general. It need not be an electromagnet; sometimes electromagnets are used, sometimes permanent magnets.
Can you zip tie MI cable to conduit legally?
No, the electrical code requires that the mineral insulated cable be strapped at proper intervals and not be piggy backed on to other conduit structures.
Difference between 7018 and 6013 electrodes?
6013 is normal arc electrode which is used for light jobs like sheet welding or tank making but when it comes to heavy construction jobs where strength required is more 7018(Low Hydrogen) Arc Electrode is used like boilers, heavy structures etc. Working with 6013 is far easier than 7018, which requires welder's skills. Neatness in finishing is also more with 6013 than 7018. any further info. on construction : nangalsuri@rediffmail.com Surinder Singh
What is reverse polarity in welding?
This is applicable to DC supply Arc Welding.In Layman language, when the electrode is given positive potential and the work piece is given negative potential, the weld formed is shallow and wide, this method is called 'Direct Current Reverse Polarity' (DCRP) welding procedure.When the machine is set on straight polarity, the electrons flow from the electrode to the plate, concentrating most of the heat on the work. With reverse polarity, the flow of electrons is from the plate to the electrode, thus causing a greater concentration of heat at the electrode. Because of this intense heat, the electrode tends to melt off; therefore, direct current reverse polarity (DCRP) requires a larger diameter electrode than direct current straight polarity (DCSP). Notice that DCSP produces a narrow, deep weld. Since the heat is concentrated on the work, the welding process is more rapid and there is less distortion of the base metal. Overall, straight polarity is preferred over reverse polarity because you can achieve better welds. DCRP forms a wide and shallow weld and is rarely used in the GTAW process. The exception to this is when it is used to weld sections of aluminum or magnesium.DCRP has excellent cleaning power that results from the action of positive charged gas ions. When these gas ions strike the metal, they pierce the oxide film and form a path for the welding current to follow. This same cleaning action occurs in the reverse polarity half of an alternating current welding cycle.
Which electrical test requires the supply to be energized?
Testing of an electrical circuit for voltage requires the supply to be energized.
What size ground rod for 1200amps service?
For a 1200 amp service, the National Electrical Code (NEC) typically requires a grounding electrode system that includes a ground rod of at least 5/8-inch in diameter and a minimum of 8 feet in length. If using a copper rod, it should be at least 5/8-inch in diameter. Additionally, multiple ground rods may be required if the resistance to ground exceeds certain limits, so it's important to consult local codes and a qualified electrician for specific requirements.
What is the difference between mono polar and bipolar electrode?
Monopolar electrode is single electrode measure voltage with respect to grond ,but bipolar electrode is two electrode measures the diff. voltage mainly bipolar is used inorder to get high Signal to Noise ratio.
Why cannot store the ac power in battery?
Because batteries have fixed polarity, whereas AC requires that the polarity is switched, normally 50-60 times per second.
How does water's polarity allow for it to also have the property of high specific heat?
Polarity makes molecules attract one another more strongly; this requires more energy to break them apart.
Why Carbon dioxide is used in MiG welding?
MIG (Metal Inert Gas) and MAG (Metal Active Gas) welding requires an external shielding, since the electrode does not have a coating of its own.Higher carbon dioxide content increases the weld heat and energy when all other weld parameters (volts, current, electrode type and diameter) are held the same. Higher levels of CO2 allow deeper penetration of the weld as well.
The electrode holder used for shielded metal-arc welding may not be used carbon arc welding?
Any electrode holder that will accommodate the size of rod can be used. Twin Carbon Arc Welding requires a specific holder. Air Carbon Arc Gouging requires a special holder that also supplies a stream of air.
Is there a country that is 50 square miles in diameter?
Square miles is a measurement of area. Diameter requires a distance measurement, not an area measurement.
What a disadvantages to using a hydrogen electrode?
One disadvantage of using a hydrogen electrode is that it requires careful handling and specialized equipment, which can be costly and complex to maintain. Additionally, the standard hydrogen electrode (SHE) can be difficult to reproduce consistently due to its sensitivity to impurities, temperature fluctuations, and pressure changes, which can affect the accuracy of measurements.
Who requires more a circular diameter of 6 or a square with sides of 4.25?
The circle.
In order to function each electrical loop requires?
In order to function, each electrical loop requires a closed path for the current to flow, a power source to provide the energy, and a load to consume the electrical energy.
