File:HomeEarthRodAustralia1.jpg
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Summary
Photo taken by en:User:Ali K on 22 March 2006. An earth stake at the residential home in en:Perth, Western Australia. Silver tube is the underground power connection. Author releases the photo under GNU FDL.
This installation is faulty because, although one reason for providing a Ground/Earth electrode (at any building) is to provide a "Multiple Earthed Neutral" and an Earth/Ground connection for "Equipment Grounding", it is also to provide "System Grounding" - to dissipate any "Magnetic Pulse" due to a nearby lightning discharge. Because of this latter requirement, the connection to the Earth/Ground Rod should be no longer than is necessary and contain no unnecessary bends.
The coiling of the conductor in the manner shown, provides an Impedance, which defeats the purpose of this Earth/Ground connection for "System Grounding".
Reference:- https://www.youtube.com/watch?v=mpgAVE4UwFw 25:50 to 28.30
Licensing
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | ||
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This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
Items portrayed in this file
depicts
0.1 second
17.4 millimetre
100
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:05, 24 December 2017 | 1,403 × 1,536 (506 KB) | F1jmm | RetouchedPicture | |
08:58, 22 March 2006 | 2,048 × 1,536 (659 KB) | Commander Keane | Photo taken by en:User:Ali K on 22 March 2006. An earth stake at the residential home in en:Perth, Western Australia. Silver tube is the underground power connection. Author releases the photo under GNU FDL. |
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Image title |
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Camera manufacturer | OLYMPUS CORPORATION |
Camera model | X100,D540Z,C310Z |
Exposure time | 1/10 sec (0.1) |
F-number | f/5 |
ISO speed rating | 100 |
Date and time of data generation | Unknown date |
Lens focal length | 17.4 mm |
Short title |
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Orientation | Normal |
Software used | v775g-79 |
File change date and time | Unknown date |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | Unknown date |
Meaning of each component |
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Image compression mode | 2 |
Exposure bias | 0 |
Maximum land aperture | 2.9 APEX (f/2.73) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |