{"id":59201,"date":"2026-04-18T08:00:43","date_gmt":"2026-04-17T23:00:43","guid":{"rendered":"https:\/\/norimen.net\/?p=59201"},"modified":"2026-05-16T18:04:12","modified_gmt":"2026-05-16T09:04:12","slug":"dojima-fall-arrest-combination","status":"publish","type":"post","link":"https:\/\/norimen.net\/en\/fall-arrest-combination-dojima\/","title":{"rendered":"Combination of Fall Arrest Devices (From Dojima River Occupational Safety Consultants)"},"content":{"rendered":"

\"Dojima<\/p>\n

To begin with, it\u2019s difficult because they\u2019re sold separately.<\/h2>\n

\"Use fall arrest equipment when working at heights.\"
\n\"Use the absorber.\"
\n\"That's something you hear a lot, but it's true in its own way.\"
\nHowever, when it comes time to actually make a purchase, isn\u2019t the fact that harnesses, waist belts, and lanyards are all sold separately what ends up confusing craftspeople?
\nIt\u2019s true that when something breaks, you can replace just the specific part, which I think is a really good thing.
\nHowever, because they are sold separately, improper usage has become widespread.<\/p>\n

Things That Might Be Used Incorrectly<\/h3>\n
    \n
  1. \n

    Full-body harness with a Type 1 energy absorber<\/strong><\/p>\n

      \n
    1. \n

      If you do this, you won't be allowed to hook at a low position.<\/p>\n<\/li>\n

    2. \n

      Compared to Type 2 absorbers, Type 1 absorbers stretch much more, which increases the likelihood of a ground fall.<\/p>\n

        \n
      1. \n

        Type 1 is triggered by a 4 kN impact load from a fall.<\/p>\n<\/li>\n

      2. \n

        Type 2 is activated by a 6 kN impact load from a fall.<\/p>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

          \n
        1. \n

          Type 2 Absorber on the Waist Belt<\/strong><\/p>\n

            \n
          1. \n

            Conditions for Activating the Absorber<\/p>\n

              \n
            1. \n

              4 kN for Type 1 absorbers<\/p>\n<\/li>\n

            2. \n

              6 kN for Type 2 absorbers<\/p>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

              When using a Type 2 harness, the system does not activate until the waist belt absorbs 6 kN of force, and if the waist belt absorbs 6 kN of force, it could result in serious injury. In the worst-case scenario, the impact could cause severe injury.<\/p>\n

              \"Image\"<\/a>
              Impact Loads from Falls and Injury Thresholds<\/figcaption><\/figure>\n

              To begin with, an absorber is designed to absorb impact by causing the stitched threads to break when subjected to a shock.
              \nIt's just like peeling off Velcro.
              \nSince the absorber uses two different types of thread\u2014one that breaks at 4 kN and another that breaks at 6 kN\u2014<\/p>\n

              If a crash occurs without the absorber engaged, the system activates only when the impact load from the crash exceeds a certain threshold.<\/p>\n

               <\/p>\n

              Dojima River Occupational Safety Consulting Office<\/a><\/p>","protected":false},"excerpt":{"rendered":"

              To begin with, the fact that these items are sold separately is what makes it difficult. You often hear things like, \u201cUse fall arrest devices for work at heights\u201d or \u201cUse shock absorbers,\u201d and those statements are correct in and of themselves. However, when it comes time to actually make a purchase, what confuses workers is that harnesses, waist belts\u2026<\/p>","protected":false},"author":2,"featured_media":59205,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[111],"tags":[5677,14252],"class_list":["post-59201","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-safety","tag-5677","tag-14252"],"acf":[],"yoast_head":"\n\u589c\u843d\u5236\u6b62\u7528\u5668\u5177\u306e\u6b63\u3057\u3044\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066 - \u65b0\u30a8\u30f3\u30bf\u306e\u6cd5\u9762\u7ba1\u7406\u587e<\/title>\n<meta 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