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work safety on dc as well as electrical equipment?
- Work only in dry environments. No water on the floor. Plug AC powered test equipment into a GFCI protected circuit. Really no safety issues on DC voltages under 50V. Only handle electrical leads with one hand. Keep the other in your pocket. Rubber mats to stand on. Rubber gloves worn inside leather gloves Face shield and arc-flash rated clothing when working on anything over 50VAC.s
what is really the purpose of grounding rod? how will the fault current return to the source?
- In maximum mainscontinual distribution structures, the impartial is grounded at the substation transformer and usually at the get right of entry to element to human being premises. If a fault takes position which leads to a stay conductor entering touch with an uncovered conductive section of the package, any cutting-edge will bypass to floor and holiday a circuit breaker.s
could an electrical engineer work in mechanical engineering?
- Yes because now its a age of mechactronics not only mechanical. its hard to electrical for mechanical engineers but its not too much hard to learn mechanical for electrical engineers.s
air force-aerospace ground equipment apprentice?
- Aerospace Ground Equipments
my negative and ground pin is live with current when the power is switched off why?
- Wow. It sounds as though you have lost your neutral and have what is called multiwire circuits in your house. Basically what is happening is you have 120 Volts on both the hot and the neutral/ground of your house. If you most of your equipment isn't working, you really have an issue you need to get looked at. Obviously I'm not standing in your house with a volt meter in my hand so I'm taking your word that the neutral and ground have volts, not current, on them. But if what you say is true then this is the most likely scenario. I strongly recommend you get a professional there quickly.s
How is the electrical maximum demand?
- We refer to it as Demand Factor. Its the total calculations of all lighting, dedicated appliance, general use power in the unit of Current (Amps). We have a NEC formula to calculate what is required when build a dwelling or commercial build. usally done by engineers on the E-sheet of blue prints, but any lic. electrical contractor, journeyman, etc. can make those calculations. I am not going to write a 10 page explanation of Demand Factor calculations. Its not one easy formula. You have to add percentage value for light loads, general use is 180 watts per outlet. Continus duty circuits need to be cal. at 125% demandetc. See there is alot more, When I was an apprenntice I did not learn this stuff until fourth year. EDIT: Well isn't that a *****! Thats why i never heard of that term. UK refers to metered service as maximum demand? USA its called Kilowatt hour usages
battery choice and power consumption?
- Lithium batteries tend to offer best size to power ratio right now. They are available in rechargeable and disposable. Take a trip to Walmart bearing in mind you may find something you like that is designed to go into something else such as a replacement battery for a cell phone or camera etc.s
Why when appliance or electrical equipment fail do they recommend unplugging for a certain amount of time?
- It's called a power cycle and that 30 to 45 seconds give any capacitors in the circuit time to discharge, wiping out any unwanted trash. Power cycles can clear lots funky little annoying issues in electronic and digital devices.s
How do LED Displays work
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Top 5 Best Known Car Battery Brand
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