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200 10$aANSI/IEEE Std C62.41-1980 $eIEEE Guide for Surge Voltages in Low-Voltage AC Power Circuits /$fIEEE
210  1$aPiscataway, NJ :$cIEEE,$d1981.
215   $a1 online resource (25 pages)
330   $aA practical basis is provided for the selection of voltage and current tests to be applied in evaluating the surge withstand capability of equipment connected to utility power circuits, primarily in residential, commercial, and light industrial applications. The recommended practice covers the origin of surge voltages, rate of occurrence and voltage levels in unprotected circuits, waveshapes of representative surge voltages, energy, and source and impedance. Three locations categories are defined according to their relative position from the building service entrance. For each category, representative waveforms of surge voltages and surge currents are described, organized in two recommended "standard waveforms" and three suggested "additional waveforms.".
517   $aANSI/IEEE Std C62.41-1980: IEEE Guide for Surge Voltages in Low-Voltage Ac Power Circuits
606   $aOvervoltage
606   $aElectric circuits$xAlternating current
606   $aElectric currents, Alternating
606   $aTransients (Electricity)$xStandards
615  0$aOvervoltage.
615  0$aElectric circuits$xAlternating current.
615  0$aElectric currents, Alternating.
615  0$aTransients (Electricity)$xStandards.
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200 10$aEarth borers /$fby Ryan Nagelhout
205   $aFirst edition.
210  1$aNew York :$cGareth Stevens Publishing,$d2017.
210  4$d?2017
215   $a1 online resource (32 pages) $ccolor illustrations, maps
225 1 $aTechnology Takes on Nature 
300   $aIncludes index.
311   $a1-4824-5785-7 
327   $aIntro -- Title Page -- Copyright Page -- Contents -- Saving Bertha -- Going Under -- Protecting the Tunnel -- Launching Bertha -- Watching Closely -- Under the Alps -- The Chunnel -- Digging into Trouble -- Scrap or Bury? -- Pushing Through -- Glossary -- For More Information -- Index.
330   $aIn this book, readers will dig deep underground with these massive machines to learn how they chew up rocks and dirt and help engineers build new things far below Earth's surface.
410  0$aTechnology takes on nature.
606   $aEarthmoving machinery
606   $aExcavating machinery
615  0$aEarthmoving machinery.
615  0$aExcavating machinery.
676   $a621.865
700   $aNagelhout$b Ryan$01244394
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