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The Case of Stray Voltage in a Lake 2009.09.30해당카페글 미리보기
other conductive surfaces not normally expected to carry electric currents. Small amounts of electric currents travelling through the earth are prevalent throughout the nation primarily due to electric utilities using the earth as a...
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The 10 Worst Grounding Mistakes You'll Ever Make 2009.01.07해당카페글 미리보기
jumper. Non-installation of GFCIs where required. Recent Code editions have mandated increased use of GFCIs. In dwelling units, GFCIs are required on all 125V, single-phase, 15A and 20A receptacles in: bathrooms; garages; accessory...
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The Basics of Bonding and Grounding Transformers 2011.01.04해당카페글 미리보기
3). Equipment grounding conductor — The 2011 NEC defines an equipment grounding conductor as “the conductive path(s) installed to connect normally non-current-carrying metal parts of equipment together and to the system grounded...
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The Case of Stray Voltage in a Lake 2011.01.04해당카페글 미리보기
other conductive surfaces not normally expected to carry electric currents. Small amounts of electric currents traveling through the earth are prevalent throughout the nation, primarily due to electric utilities using the earth as a...
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A Debate in the Deep End 2011.01.04해당카페글 미리보기
minimum conductive surface area (9 in.2) bond required by 680.26(c).It is physically located inside the pump house in the pool water return pipe. (Photo courtesy of Electric Power Research Institute) Applying 95V between the pool ground...
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대표적인 저항의 종류와 특성 2011.03.13해당카페글 미리보기
저항기 (Non Inductive Wire Wound Resistor) 권선형 저항기는 권심에 저항선을 코일처럼 감아서 만들기 때문에 코일에 의한 유도 성분이 발생합니다. 이 유도 성분은 저항과 결합하여 고주파 대한 필터로 작용하거나 하여 전달되는 신호에 악영향을 미칠...
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프레디 vs. 제이슨(Freddy Vs. Jason) 대본 2008.10.14해당카페글 미리보기
dieci...non dormirai piu --" A VERTICAL ANGLE, HIGH ABOVE. The RHYME stops. SILENCE. We HEAR a STEADY THUMP...THUMP. They draw their swords as -- Something PUNCHES FORCEFULLY through a COBWEB VEIL, BOUNCES down the steps. Comes to a halt...
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★★고수님들아 내공 팍팍!!해석좀 부탁드릴게요!!!!!!!!! 2008.12.03해당카페글 미리보기
square conductive plate with edge length of 63.5 mm ± 6.35 mm (2.5 in ± 0.25 in). The discharge path includes a 1 ohm resistive current probe of at least 3 GHz bandwidth for waveform monitoring. The cable from the 1 ohm resistor to the...
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Zapper Tips 2008.11.29해당카페글 미리보기
to conductive board standoffs and a second LED. Then, the output pipes or clips or pads can be touched to the board standoffs which protrude from the back of the case to perform a battery level check (use a 5V or so zener), as well as to...
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Magneto 2009.03.11해당카페글 미리보기
Such conductive deposits produced by previous arc-over events can make it much easier for subsequent arc-overs to occur, and should be cleaned off. Preventing Misfire Spark plug gaps are critical for high-altitude flying. There are...