![]() The High Voltage Lines of 110 kV and above are under the transmission division and it is only the voltage levels of 33 kV, 22 kV, 11 kV and lower voltages which are part of the Distribution Network of TPC-D. HPCL’s contention that High Voltage Lines of 110 kV and above are under TPC-T’s Transmission Network and only the Lines with voltage levels of 33 kV, 22 kV, 11 kV and lower form part of TPC-D’s network, is wrong and denied. High Voltage Lines – No high-voltage lines will be added at this time. ![]() The additional antennas will not affect the draw of lightning to the pole. The Contractor consults with the Employer for the design and construction of the overheard line, where the overheard line crosses High Voltage Lines minimum safety clearances and safe installation procedures are put in place before and are observed during stringing.įor High Voltage Lines up to andincluding 33,000 volts3.7 m(b)For Extra High Voltage Lines3.7 m plus 0.3 m for every additional 33 KV or partthereof. ![]() MOSH has multiple standards and regulations which differ from the federal program including, but not limited to: High Voltage Lines (Title 6), Fall Protection in Steel Erection (Code of MD Regulations (COMAR) 09.12.25), and Tree Care and Removal (COMAR 09.12.28).įor High Voltage Lines upto and including 33,000 volts3.7 m(b)For Extra High Voltage Lines3.7 m plus 0.3 m for every additional 33 KV orpart thereof.Īll Work near High Voltage Lines (more than 600 volts measured between conductors or between a conductor and the ground) shall be in accordance with Health and Safety Code, Title 9, Subtitle A, Chapter 752. So for a fixed R and a smaller I, we reduced P the loss of power due to the Joule Heating.Examples of High Voltage Lines in a sentence According to the Joule Heating effect, the formula P = I^2 X R (where P = the loss of power due to the Joule Heating, I^2 = the electrical current intensity squared and V = voltage) says that as we use higher and higher voltages, I gets smaller and smaller. For short distances that resistance is negligeable, however over miles of distance that resistance can be significant. an electric current) move inside a wire, they encounter a tiny bit of resistance. Since there is no such thing as an electrical wire with 0 resistance, when charged particles (i.e. To keep it simple, this has to do with the Joule Effect, especially via the Joule Heating. Although it's true that with a smaller current you can use smaller wires, that is not the main reason why we use high voltages for transmission lines. Mike your answer needs some additional explanations. This doesnt happen as much with high voltage since the currents are smaller! High voltage is actually needed for to send power over long distances because if you use high current, a lot of the power is lost to the resistance in the wires. That means that if you want to send a lot of power you can use: Power is roughly equal to the current times the voltage. High voltages are used in power lines because you are trying to send power from one place to another. (The electrons dont easily get from one side to the other.) Resistors restrict current flow through a circuit. If, however, you stand on the ground and touch a high voltage (compared to ground) power line, you will have current flowing through you since current flows from places with higher voltages to places with lower voltages.Ī resistor is an example of a load. For example, if a bird lands on a high voltage power line, it doesnt matter because its not connected to anything with a lower voltage. The important thing to know about voltage is that it is only meaningful when youre looking at more than one point. This is because the direction of a current in a circuit is defined as the direction positive charges would move, and electrons are negative. For example, if electrons are moving right, current is moving left. The only catch here is that current flows in the opposite direction of electrons. The more electrons are flowing, the bigger the current is. I will do my best to summarize these questions, but you may wish to look at a physics book for more detailed answers.Ĭurrent is related to the flow of electrons through something.
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