Electrical Grounding of Power & Communications Facilities for Tactical Operations in Arctic Regions.
The problem of electric earth grounding in cold regions is primarily one of making good contact with high resistivity soils. Where frozen, high resistivity materials are encountered, optimum grounding of power and communication circuits can only be accomplished by special attention to both surface a...
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1975
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ftdtic:ADA152511 2023-05-15T14:39:27+02:00 Electrical Grounding of Power & Communications Facilities for Tactical Operations in Arctic Regions. CORPS OF ENGINEERS ANCHORAGE AK ALASKA DISTRICT 1975-10 text/html http://www.dtic.mil/docs/citations/ADA152511 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA152511 en eng http://www.dtic.mil/docs/citations/ADA152511 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Electricity and Magnetism *ELECTRICAL GROUNDING COLD REGIONS SOILS ELECTRICAL RESISTANCE ARCTIC REGIONS Frozen soils Text 1975 ftdtic 2016-02-21T00:08:12Z The problem of electric earth grounding in cold regions is primarily one of making good contact with high resistivity soils. Where frozen, high resistivity materials are encountered, optimum grounding of power and communication circuits can only be accomplished by special attention to both surface and subsurface terrain. The fact is that the resistance of frozen soils can be ten to a hundred times higher than in the unfrozen state. Permafrost, which is encountered throughout the arctic and portions of the subarctic, affects grounding. During tactical operations on ice fields and glaciers or in deep snow when the arctic and subarctic are overlain with snow and ice, terrain evaluation, landform, and recognition of soils are difficult and impractical. Illustrations are included throughout this report to outline various established methods to test, measure, construct, and maintain grounding systems. Text Arctic Ice permafrost Subarctic Defense Technical Information Center: DTIC Technical Reports database Arctic |
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Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Electricity and Magnetism *ELECTRICAL GROUNDING COLD REGIONS SOILS ELECTRICAL RESISTANCE ARCTIC REGIONS Frozen soils |
spellingShingle |
Electricity and Magnetism *ELECTRICAL GROUNDING COLD REGIONS SOILS ELECTRICAL RESISTANCE ARCTIC REGIONS Frozen soils Electrical Grounding of Power & Communications Facilities for Tactical Operations in Arctic Regions. |
topic_facet |
Electricity and Magnetism *ELECTRICAL GROUNDING COLD REGIONS SOILS ELECTRICAL RESISTANCE ARCTIC REGIONS Frozen soils |
description |
The problem of electric earth grounding in cold regions is primarily one of making good contact with high resistivity soils. Where frozen, high resistivity materials are encountered, optimum grounding of power and communication circuits can only be accomplished by special attention to both surface and subsurface terrain. The fact is that the resistance of frozen soils can be ten to a hundred times higher than in the unfrozen state. Permafrost, which is encountered throughout the arctic and portions of the subarctic, affects grounding. During tactical operations on ice fields and glaciers or in deep snow when the arctic and subarctic are overlain with snow and ice, terrain evaluation, landform, and recognition of soils are difficult and impractical. Illustrations are included throughout this report to outline various established methods to test, measure, construct, and maintain grounding systems. |
author2 |
CORPS OF ENGINEERS ANCHORAGE AK ALASKA DISTRICT |
format |
Text |
title |
Electrical Grounding of Power & Communications Facilities for Tactical Operations in Arctic Regions. |
title_short |
Electrical Grounding of Power & Communications Facilities for Tactical Operations in Arctic Regions. |
title_full |
Electrical Grounding of Power & Communications Facilities for Tactical Operations in Arctic Regions. |
title_fullStr |
Electrical Grounding of Power & Communications Facilities for Tactical Operations in Arctic Regions. |
title_full_unstemmed |
Electrical Grounding of Power & Communications Facilities for Tactical Operations in Arctic Regions. |
title_sort |
electrical grounding of power & communications facilities for tactical operations in arctic regions. |
publishDate |
1975 |
url |
http://www.dtic.mil/docs/citations/ADA152511 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA152511 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost Subarctic |
genre_facet |
Arctic Ice permafrost Subarctic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA152511 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
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1766311412760576000 |