{"id":3169,"date":"2011-06-28T19:10:52","date_gmt":"2011-06-28T23:10:52","guid":{"rendered":"http:\/\/www.engineeringradio.us\/blog\/?p=3928"},"modified":"2023-04-30T11:26:15","modified_gmt":"2023-04-30T15:26:15","slug":"things-that-make-you-go-hmmm-part-iii","status":"publish","type":"post","link":"https:\/\/www.engineeringradio.us\/blog\/2011\/06\/things-that-make-you-go-hmmm-part-iii\/","title":{"rendered":"Things that make you go hmmm, part III"},"content":{"rendered":"\n<p>Continuing the series, this is a picture of an ice bridge installation I recently saw:<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/ground-wires-on-ice-bridge.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"389\" src=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/ground-wires-on-ice-bridge.jpg\" alt=\"Ground wires on an ice bridge\" class=\"wp-image-3183\" srcset=\"https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/ground-wires-on-ice-bridge.jpg 650w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/ground-wires-on-ice-bridge-150x89.jpg 150w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/ground-wires-on-ice-bridge-300x179.jpg 300w, https:\/\/www.engineeringradio.us\/blog\/wp-content\/uploads\/2011\/06\/ground-wires-on-ice-bridge-400x239.jpg 400w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/a><figcaption class=\"wp-element-caption\">Ground wires on an ice bridge<\/figcaption><\/figure>\n\n\n\n<p>On an otherwise neat installation, it appears there is something wrong with the way these ground wires are connected to the support poles of an ice bridge. &nbsp;I am not sure how effective that connection will be if lightning hits anything nearby. &nbsp;Generally speaking, those wires are CAD welded (<a href=\"http:\/\/en.wikipedia.org\/wiki\/Exothermic_welding\" target=\"_blank\" rel=\"noopener\">exothermic welding<\/a>) to the support poles or whatever else is supposed to be grounded. &nbsp;I&#8217;d bet that whoever packed the truck for the job simply forgot to throw the CAD weld shots on the truck.<\/p>\n\n\n\n<p>Now they have to come back.<\/p>\n\n\n\n<p>It will be interesting to see how long it takes whatever tower company to return to the site and finish the job.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Continuing the series, this is a picture of an ice bridge installation I recently saw: On an otherwise neat installation, it appears there is something wrong with the way these ground wires are connected to the support poles of an ice bridge. &nbsp;I am not sure how effective that connection will be if lightning hits &hellip; <a href=\"https:\/\/www.engineeringradio.us\/blog\/2011\/06\/things-that-make-you-go-hmmm-part-iii\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Things that make you go hmmm, part III<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[145],"class_list":["post-3169","post","type-post","status-publish","format-standard","hentry","category-general","tag-photo-of-the-week"],"_links":{"self":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts\/3169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/comments?post=3169"}],"version-history":[{"count":4,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts\/3169\/revisions"}],"predecessor-version":[{"id":11778,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts\/3169\/revisions\/11778"}],"wp:attachment":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/media?parent=3169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/categories?post=3169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/tags?post=3169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}