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The friction between the drill bit and the relative material it is drilling through.

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Define voltage dumbed down?

E dumbed down is a reference for slight degradation of a normal line voltage. It will vary for the "standard" set by your local electric company and guaranteed to vary as much as 10 volts...i.e Nominal line voltage may be anything from 115 volts to 127 volts as in my rural service territory.. In order to save those old rigs from frying to death, U need wire a 6 volt filament transformer in series opposing, so the 6 volts is reducing the normal power supplied. 126 volts becomes 120 volts and the secondaries in transformer begin to love you for not providing them with more input voltage than they are designed to work with. I endured lighting storm with line voltage surges and an old linear amp was cooking -slowly- the original 8 amp slo-blow fuses. I wired a ten ampere 6.3 volt filament transformer to reduce the line input voltage and the fuse failure became very much reduced, until the storm. I rewound the power transformer and when I did, added to the primary winding to accommodate the increased line voltage. Rig now works nicely on 5 amp fuses and doesn't blow them, even though they are normal fast-blow types. I still get 600 watts output and can work most anyone I hear...So, dumbing down your house voltage should not be taken lightly and if you have any older Ham Radio gear, U might seriously elect to add the six volt bucking transformer arrangement. The thing to remember is the ampere rating of the 6 volt winding has to be able to carry the current needed to run the equipment you operate. Good luck and Happy Hamming with those oldies-but-goodies still on the market!


How to become an Electrical Lineman?

Linemen (this is the term used even for women working in the field) are sometimes called lineworkers, power line technicians (PLTs), or a power line workers. They are the professionals to construct, rig, and maintain electrical power lines, distribution centers, fiber optic lines, and lines or cables for telegraph and television transmissions.Linemen work outside almost exclusively, in all sorts of weather and conditions, including high level wire work on telephone poles and electrical towers. They are often working with “live” wires, running current. Their duties require acute observational skills, attention to detail, and extreme manual dexterity and physical strength for climbing and using special equipment. Linemen often work as part of a team, so communication skills are important.In terms of education, linemen need a high school diploma or GED that includes at least a year of algebra, plus specific training and qualifications gained through certifications or professional official apprenticeships served under experienced senior linemen. Many linemen finish high school then get a two-year Associates technical degree while they work as an apprentice. Many trade schools and community colleges offer specific training and certificates for linemen, though it is important to make sure that the program offers training regarding electrical distribution theory as well as hands-on practical labs. Many people finish high school and get a jump-start on lineman training by working for a local contractor in hopes of being apprenticed.Apprenticeship qualifications (http://www.electricaltrainingalliance.org/training/apprenticeshipTraining) include a year of high school algebra, successfully passing a drug test, and qualifying score on an aptitude test. The IBEW, the official trade organization for linemen, offers information about training including locations with approved training and information about colleges offering approved two year associates degrees and four year bachelors degrees designed to prepare students for future jobs as linemen.


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