Q:hi guyscan you explain in simple words what is earthing process and how it helps to secure human from detected current.thanks

Earthing system helping for Human safety to avoid electrocution due to earth leakage.Earth is acting like a Huge conductor because of it minerals Moisture contend (water).If any electrical equipment Insulation failure leakage will be there ,if the same equipment is not Grounded ,there is a possibilitiesof getting electric shock to Human.If the same equipment is Grounded the leakage current will flow to Earth protect from electric shocks Trip the circuit. Pl. check this link for brief idea.

Q:I want to open a electrical contracting business down in Brisbane or Sydney after i have done my apprenticeship and had a thew years of experience I'm 16(Australia).Possibly even higher a thew lecky and also sell stuff like inverters etc. electrical equipment.The business would service the commercial side more then the domestic side.would this be a viable business or not.and would it be possible to make any money out of this to look after my family and look after my own family. Perhaps a couple hundred thousand a yearor would it be better to just go to the mines By the way i do study business organization and management plus economics so i have a general idea of what would be required like a very detailed business plan etc.

Your okorder

Q:I am about to finish my BS in Electrical Engineering and was considering getting a MS in EE but considering how the economoy is and the fact that the Bureau of Labor Statistics say it should grow slower than average. This being said what do you guys think is the most prudent thing to do in my case. Go for an MS Engineering Degree or start out with another degree maybe in healthcare.

As per research, the job growth of electrical engineers will largely occur in engineering firms, government agencies, industrial sectors, and more. These engineers will also experience tremendous job growth in computer systems design, because these industries are focusing on manufacturing portable computing device. The rapid pace of technological invention will drive huge demand for electrical engineers in the research sector as well. So, those who're thinking of pursuing electrical and electronic engineering will experience favourable employment opportunities in the years to come.

Q:I am wondering what happens when you have accidentally connected the negative cables to positive and the positive cables to negative. I have boat that has to two marine batteries and i am wondering if you were to do this will it screw things up and break things?

It depends on the details of how you mis-wired the batteries and what equipment you tried to run with the batteries mis-wired. Many devices have some built-in protection against reverse polarity, so there might not be any damage at all. If you mis-wired between the batteries, you could have damaged the batteries. If you wired them so that they were in series, you doubled the voltage on things that were connected. Light bulbs, starter motor/coil in the boat motor, electric motors will probably survive a short time in that configuration, but their lifetime is probably shorter now.

Q:Can I use GB electrical equipment in Ukraine? If not what adaptor do I need to be able to use it?

Ukraine has 220/240 voltage, and a different 3 prong outlets. You can buy converters in most major stores.

Q:I think that I might have opened a portal into another world. Yesterday I heard a recording off of the internet that didn't exist! Weird. Also, I have been hearing voices and sounds coming from the room where I think that the portal was opened. I am so freaked out. I have a lot of excess electrical equipment in this room and I feel a little bit uncomfortable with that. I'm wondering if the equipment is making me feel weird too. Does anyone have a similar experience? What should I do? I don't want to hang out with spirits!

It could be due to high EMF readings. This is the energy a person or an electrical appliance gives off. Sometimes, when these frequency's are to high they can effect your health by feeling sick, disorientated or as if you have seen things that are not actually there. If you feel uncomfortable around that part of your house or become particularly ill then it could be the EMF, if so you should contact an electrician. On the other hand, if you experience non of these occurrences then you should probably contact a spiritualist and see what they have to say. Keep in mind many only care about the money and not your well-being.

Q:A. Identify only the primary source of electrical energy for the equipment or circuits in question.B. Enable backup energy sources, such as generators and batteriesC. Make sure all workers are safe and accounted for before equipment and circuits are unlocked and turned back onD. Avoid testing equipment and circuitry to ensure they are de-energized

picked B and got it wrong. :( its either D or C

Q:I would like to know about background historical trends in heavy electrical equipment industry in India and future prospects of sourcing heavy electrical equipments in India.If you have any report or thesis on similar topic, please share with me.It would be of immense help to me.

Suggest that you contact the Indian embassy, trade department, they will probably give you a list of suppliers.

Q:and how does its work?

It will basically provide safety protection from electrical shock. Occassional large electrical equipment may become temporarily energized --- maybe a down power line, or by accident. By grounding the equipment, the earth that you are standing on, and the equipment will always be at the same voltage. Therefore, even if the equipment becomes energized at 25000 Volts, the ground you are standing on will be at 25000 volts as well. So there is no potential difference and therefore, no electrical shock. Without the earth connection --- there would be a 25000 Volt potential difference, and you would suffer severe electrical shock, or even death. Excerpt from Wikipedia: Ground or earth in a mains (AC power) electrical wiring system is a conductor that provides a low impedance path to the earth to prevent hazardous voltages from appearing on equipment (the terms ground (North American practice) and earth (most other English-speaking countries) are used synonymously here). Normally a grounding conductor does not carry current. Neutral is a circuit conductor (that carries current in normal operation), which is connected to earth (or ground) generally at the service panel with the main disconnecting switch or breaker.