Presentation on theme: "BASIC FALL PROTECTION OFFERED BY: CH BULL CO SOUTH SAN FRANCISCO, CA."— Presentation transcript:
BASIC FALL PROTECTION OFFERED BY: CH BULL CO SOUTH SAN FRANCISCO, CA
Your Instructors ANDY BULL President C. H. Bull Company
Falls Kill Unrestrained falls from 10’ kill or disable 4 out of 5 victims Unrestrained falls from 11’ kill 4 out of 5
PHYSICS OF A FALL Elapsed Distance Velocity Speed MPH Force at Time of fall Ft. per second impact.25 1 Ft 8 5.5 400 Lbs.50 4 Ft 16 11 1600 Lbs.61 6 Ft 20 14 2400 Lbs.75 9 Ft 24 16 3600 Lbs 1.0 16 Ft 32 22 6400 Lbs 1.25 25 Ft 40 27 10,000 Lbs 1.5 36 Ft 48 33 14,000 Lbs 1.75 49 Ft 56 38 19,600 Lbs *calculations based upon a 200 pound worker including tools.
Construction In 1995 1,048 people died on the job –32% of fatal accidents involved falls
Key Areas of Concern Falls from heights Confined spaces Lift equipment Scaffolds
Eliminating the Risk Don’t go there Build a work platform Implement a personal fall arrest system Use alternative means
Fall Protection A series of steps taken to reasonably lessen or eliminate the risk of falling in the work place
What Is Fall Protection? Equipment? Planning? A culture change? It is all of the above
Key Fall Exposures, Concerns At heights When positioned Confined spaces Lift devices
The Regulatory Environment Employers have the GENERAL DUTY to provide a safe, healthy workplace
Hierarchy of Regulation State or federal standards –Minimum acceptable Manufacturer notices, warnings, instructions Employer safety policy
Generally Speaking the Regs Require Fed OSHA limits free falls to 6’ or less Cal/OSHA limits free fall to 30” or more Special criteria for confined space work Fall protection in lift devices Scaffold builders to be “tied off”
Specific Regulations 29CFR1910 29CFR1926 Multiple state regulations –CAL/OSHA of Regulations, Title 8 –Subchapter 7
Two Types of Personnel Are Described Competent Qualified
Competent Persons Know application limits Regulations Able to “solve and resolve” problems Have authority to take necessary actions
Qualified Persons Degree or certificate of competency –PE Vast experience Skill necessary to “solve and resolve” technical problems
Personal Fall Arrest Systems Must be in place when the risk is present Must limit impact loads on the victim Must ACTUALLY work in the environment in which they are used
At Heights Maximum free fall Minimum anchor strength Maximum impact loads Adequate clear space for use –Fall protection is 10% equipment; 90% rigging
When Positioned A fall of NO MORE THAN 2 FEET A minimum 3,000# anchor All other hardware must meet PFAS requirements
Confined Space Fall Protection and Retrieval Needs Holes Excavations Ship maintenance & construction Tanks
Types of Confined Space Permit Required - IDLH situations may be encountered Non Permit Required - NO IDLH situations
Entry & Exit Requirements Without approved means of entry –Basic fall protection –Personnel winch cannot be used as load winch With approved means of entry –Extraction only in permit-required situations
Powered Lift Equipment Confusing Scenario –Scissor lift –Boom lift or other device
Scissors Lift Working surface
Boom Lift Must be “tied off” –29CFR1910.67(c)(2)(v) A full body harness shall be worn and a lanyard attached to the boom or basket when working from an aerial lift.
One More Look at Boom Lifts Do you see any problems here? –Free fall potential? –Anchor strength? –Basket capacity?
Scaffold Fall Protection ???? Conflicting guidance abounds CAL / OSHA Title 8 Subchapter 18 has the most information on scaffold
Federal Regulatory Basis OSHA –29 CFR 1926 Sub R Steel erection only –29 CFR 1926 Sub M Well documented 6’ free fall
29CFR1926 Sub R Significant changes –1926.760(a) sets 15’ “trigger height” with exceptions –Specific training
Definition of “Steel Erection” “…the construction, alteration or repair of steel buildings…installation of decking…used in the process of erection.” –29CFR1926.751
Connectors Protected from falls of more than 30’ –29CFR1926.760(b)(1) 15’ to 30’ PFAS or positioning or restraint system –29CFR1926.760(b)(3)
Decking Established procedures for controlled decking zone (CDZ)
What if Conventional Fall Protection Will Not Work Fall protection plans are acceptable alternative –Very restrictive –Very specific
Fall Protection Plans Require clear statement that “conventional” fall protection “is impractical or creates a greater hazard.” Must clearly identify why conventional systems are not appropriate
Plans Must be Specific Where it is to be implemented Who is responsible for implementation A qualified person must approve the plan and any changes The plan must be maintained on site
Additional Actions May be Required for Compliance Title 8§1671.1(a)(9) requires controlled access zones and safety monitoring when “no other alternatives measure has been implemented….”
Controlled Access Zones Control line set not less than 6’ nor more than 25’ from unprotected or leading edge Set with lowest point no less than 39” nor more than 45” above the working level Must be clearly marked at not more than 6’ intervals
Safety Monitoring Safety monitor must be competent person Must always be in communication with employees being monitored Monitor should have no other responsibilities diverting attention
Safety at Heights: A Simple Proposition A - anchorage B - full body harness C - connectors D - devices
Anchor Points Basic - most common alternative Engineered - meets 2:1 safety factor Most common errors Assume anchor point is strong enough Somebody else tied off to this anchor point
Can You Recognize an Appropriate Anchor? 5,000 lbs 3,000 lbs How about a rule of thumb?
Anchor Point Evaluation Ford F-250 Extended Cab 2 WD 5,058 lb.
Anchorage Selection 5,000 pound requirement Set as high as possible –Cuts free fall Use correct device –Cable or web sling –Carabiner, handgrip
Weight Limits Most fall arrest equipment sold in the United States has a stated weight limit of 310 pounds. Why? Anchor quality
B: Body Harness The only acceptable device for use in a fall arrest situation Spreads load to minimize injuries –OSHA allows 1,800 pound impact load –ANSI Z359.1-1992 limits impact to 900 pounds Positions victim for rescue
Harness Categories General use Specialized Rescue, Climbing
Common Features Ease of inspection Improved labeling Two-color design
Harness Fit Legs closed tightly Sub pelvic strap correctly positioned D-ring positioned between shoulders Harness Fit
Make Your Inspection COMPLETE! Internal damage can be hard to detect Tug on the lanyard legs to be sure they are attached
Falls Actually Don’t Kill…. The Stop Does the Damage Contact with lower levels, dangerous equipment Swings into structures
Fall Protection Math Lanyard length + shock absorber length + victim height + elongation = REQUIRED CLEAR SPACE 6’ + 6’ + 42” + 1’ = >15’ Do you have this much distance?
Falls: Quick, Deadly
Fall Protection: 10% equipment 90% rigging
Rigging Is Critical Anchor set as high as possible Lanyard attached properly to harness –Shock absorber clipped to back d-ring
Self Retracting Lifelines Must be positioned over work area –Minimize swing fall potential Cuts anchor requirement –3,000 lbs.... Vs. 5,000 lbs..
Temporary Horizontal Lifelines Ideal for steel, bridge, and decking Anchored correctly Check vertical clearance –Nearly 20’ may be needed
Minimum Clearance Requirements Vary Pro-Span system needs 22’ for one man & 60’ interval BeamSafe needs 16’ for one man & 60’ interval
Engineered Fall Arrest/Protection Systems Fall arrest – there may be fall from an exposed edge Fall restraint – prevents personnel from reaching an exposed edge
Typical Rail Car Unloading, Inspection Installation Demanding vertical performance Must be user friendly
There are Lots of Opportunities
Rides or Attractions
Horizontal systems Cable systems Rigid rail systems Embedded strut Beam trolley
Rigid Rail System
Vertical climbing systems Cable systems Rail systems
Rigid Rail System
Summary- Engineered Systems Definition Standards Hazards and Solutions What are the benefits of an Engineered System?
Benefits Cost effective Versatile Low Maintenance Very easy to use COMPLIANT
Inspection Intervals Title 8 Sec 1670 (19) requires that PFAS “shall be inspected not less than twice annually” by a competent person Inspection date must be documented
Rescue: The Final Challenge Most falls are self rescued If rescue is required it –Must be timely, per OSHA –Must be within 15 minutes, per ANSI Must be part of the plan
A Safety Reminder Even if you were born to do a job, it doesn't necessarily mean that you're going to automatically do it safely.… You know what you're doing, its what you've been trained to do your whole life. Nothing could possibly go wrong, right??? Think again!
Thank You! It starts right now. Remember knowledge is not power, it is what you do with what you know that gives you power