Editing Rope Rescue/Equipment/Need/I-beam rigging clamps
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I-beam rigging clamps | I-beam rigging clamps | ||
* for training at Fire Hall | * for training at Fire Hall | ||
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** sloped I-beams, flange 4 inches wide | ** sloped I-beams, flange 4 inches wide | ||
*** '''need to determine flange thickness''' | *** '''need to determine flange thickness''' | ||
- | *** | + | *** '''determine slope angle''' |
** horizontal I-beams, flange approx 7-8 inches wide | ** horizontal I-beams, flange approx 7-8 inches wide | ||
*** '''need to determine flange thickness''' | *** '''need to determine flange thickness''' | ||
*** '''more accurately measure flange width''' | *** '''more accurately measure flange width''' | ||
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== Requirements == | == Requirements == | ||
* adjustable from 4 to 8 inches | * adjustable from 4 to 8 inches | ||
- | * placeable on sloping I-beam | + | * placeable on sloping I-beam |
** non-rolling | ** non-rolling | ||
* MBS: 40 kN | * MBS: 40 kN | ||
** 2 person load, SSSF, pulley at top | ** 2 person load, SSSF, pulley at top | ||
** = 8993 lbf | ** = 8993 lbf | ||
- | ** WLL is not the same as MBS. It has a Design Factor (DF) built in for safety. That factor is not documented; OSHA talks about factor 2 in other parts of its standard. But without specification, we assume that the | + | ** WLL is not the same as MBS. It has a Design Factor (DF) built in for safety. That factor is not documented; OSHA talks about factor 2 in other parts of its standard. But without specification, we assume that the WLL is only negligibly less than MBS. |
== Product options == | == Product options == | ||
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=== Not suitable === | === Not suitable === | ||
- | * rigging chains | + | * rigging chains (require horizontal beam) |
- | + | ||
** http://www.polarfocus.com/view.php?RCS | ** http://www.polarfocus.com/view.php?RCS | ||
+ | * http://www.polarfocus.com/view.php?RBC | ||
+ | ** "level beams only" | ||
* All Material Handling (AMH) | * All Material Handling (AMH) | ||
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** http://www.allmaterialhandling.com/aspnet/beamclamps.aspx | ** http://www.allmaterialhandling.com/aspnet/beamclamps.aspx | ||
** http://winchlines.com/merchant.mvc?Screen=CTGY&Store_Code=WINCHLINES&Category_Code=Beam_Clamps | ** http://winchlines.com/merchant.mvc?Screen=CTGY&Store_Code=WINCHLINES&Category_Code=Beam_Clamps | ||
- | ** | + | ** not rated for live load see [http://winchlines.com/merchant.mvc?Screen=CTGY&Store_Code=WINCHLINES&Category_Code=Beam_Clamps pictures] |
- | + | ||
** http://www.stageriggingonline.com/beamclamps.html | ** http://www.stageriggingonline.com/beamclamps.html | ||
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