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My department had our Annual Confined Space recertification recently and had an interesting scenario.
We had a victim in a sewer 40 feet from the entrance, with a 15 foot drop down the h***. We set up the teams:
-Entry Teams : One entry team of 2 members and One backup team of 2 members using two air cart entry systems. Each team had an assigned air monitor member to manage the carts and hoses.
-Rigging teams: One team to set up the tripod (also used to manage the entry), one team to set up a 4-to-1 rig and one team to set up a 3-to-1 backup system.

The original plan was to have the entry team use a change of direction in the h*** and utilize a 3-to-1 system to move the packaged victim (in a stokes basket) to the edge of the h*** and transfer the stokes to the 4-to-1 extract the victim out of the h***.
The instructor made an interesting comment and suggestion:
-Instead of utilizing a 3-to-1 have the entry team set up a 2-to-1 by anchoring the line end to the entry ladder of the sewer, connecting the pulley to the stokes, and bringing the running end of the line back to the entry point. Then have the two rescuers pull the victim to the opening and transfer the stokes to the 4-to-1 to remove the victim.
It worked very well, the entry team didn’t have too much to do setting up the haul system (because it was easy). No re-set necessary with a 2-to-1.
I’m not sure if this is helpful, but it worked well. Any thoughts?

Don't BE the next one, BE safe!
Richard Michitsch
Schering-Plough Fire Department

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