Anchors
Objectives Procedures for the safe construction and use of single point and multi-point anchor systems.
Bomb Proof Anchors
Anchors are the Foundation of the System
So… KEEP ANCHOR ANGLES UNDER 90 o
Always Back Up Your Anchors Primary anchor Backup anchor –Separate strap if same anchor
Do Not Use Many Poor Anchors Trying to Make One Good One!
Some Good Anchor Choices Steel beam Bulk concrete Window cleaner bolts Stairwell support beams Elevator and machine housings
Some Poor Anchor Choices Insulated pipes Handrails Cast iron pipe Brickwork without bulk Guy wire eye bolts People (FDNY)
Using Vehicles as Anchors Set parking brake Chock the wheels Remove keys from ignition Transmission in park Anchor to structural components Turn siren, etc on if vehicle is turned on
Single Loop
Lark’s Foot
3 – Bight
Multi – Loop
4:1 Tensionless Wrap
Self – Equalizing Anchors
Load Equalizing
Load Sharing Anchors
Change of Directions
Loss of an Anchor
Be aware of Three Directional Pulls on Carabineers
Anchor Plates