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How important is ground wire for fridge in single phase supply in India?
Wiki User
∙ 10y ago
Answer for UK, Europe and countries running a 50 Hz supply service.
It is very important. India probably has wiring regulations governing ground wires but for a refrigerator anywhere a ground wire is an essential safety feature. The metal exterior of the equipment must be directly connected to the metal exteriors of all other pieces of equipment and none of these should be connected to either current-carry conductor. Wiring usually has a ground wire included for this purpose. The ground wire should also be connected to any metal gas or water pipes in the property and at some point to an earth rod.
In a UK property, current regulations say the water pipes, the gas pipes and the electical ground must be connected together with a wire of at least 10 sq. mm, cross section, placed as close as possible to the point where the services enter the property.
Wiki User
∙ 10y ago
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What is the diff between analog ground and digital ground?
Typically digital circuits will pump a lot of fast transient currents into the ground. Since real grounds have resistance and inductance, this will produce a drop between the ground of the digital circuits and the power supply ground. This is the so called "ground bounce". If an analog circuit ground shares ground path between the digital ground and the power supply ground, it will see this voltage drop. Depending on the common mode rejection of the analog circuit in question and the frequency components in the "ground bounce" this may or my not be an issue. If it's an issue, the easy solution is to connect the analog ground directly to the power supply ground without sharing any of the path from digital ground to main power supply ground. This way the current spike induced drops in the digital ground don't show up in the analog ground. A good example would be ADC grounding for the digital and analog portions of the ADC chip.
Is it advisable to use line to neutral power supply on a single phase residential area when the safety is concern?
line to line or line to neutral is the only way to use power line to ground if a FAULT current in the ground is a problem that needs to be corrected, an insulation fault
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Where can you purchase a commercial fridge?
There are many places one can purchase a commercial fridge. There are both online and offline companies that can supply a range of commercial fridges such as Food Service Warehouse, MissionRS, and the Capital Cooling company.
