Articles

Rigging (9)

  1. A Good Rigger's Skill Set
  2. A Rigger's Values
  3. Becoming a Rigger
  4. Qualifications & Licensing
  5. Rigging Associations
  6. Salary Profile of a Rigger
  7. What a Rigger Does
  8. What a Successful Rigger Knows
  9. What is a Rigger?

Tips & Advice (7)

  1. House Movers Depend on Heavy Load Moving Equipment
  2. Keeping Up with Federal Regulations
  3. Keeping Your Small Rigging Business Afloat - Part 1
  4. Keeping Your Small Rigging Business Afloat - Part 2
  5. Specialized Insurance
  6. Successfully Completing a Rigger Job Application
  7. Tips for Choosing a Rigger

Trends (4)

  1. Becoming an API Qualified Rigger
  2. Helicopter Rigging & Lifts
  3. Market Opportunity? Bakken Formation
  4. Understanding Rigging Design Factors

Safety (10)

  1. Critical Lift
  2. Estimating the Capacity of Chains & Hooks
  3. Evaluating Your Load's Weight
  4. Lifting People Safely
  5. Non-Critical Lift
  6. Rigging in the Aftermath of a Natural Disaster
  7. The Dangers of Shock Forces
  8. The Problem of Moving a Load with 4 Skates
  9. Who Sets the Standards for Safety?
  10. Why Does a Rigger Need Insurance?

How it Works(13)

  1. Center of Gravity
  2. Chain Slings
  3. Gravity & Rigging
  4. Hand Signals
  5. How It Works: Mobile Cranes
  6. How It Works: Stationary Cranes
  7. Lift Planning
  8. Nylon for Slings
  9. Rotational Resistant Wire Rope
  10. Spreader Bars
  11. Synthetic Rope
  12. Understanding Hydraulic Cylinders Part 1 - Single & Double Acting
  13. Which Sling is Right for the Job?

Non-Critical Lift

Introduction
Much as be published on the subject of critical lifts. In fact, in a previous article in this space, the topic was tackled by giving commonly occurring industry reasons for lifts to be classified as “critical”. Upon studying such a list of reasons, one quickly develops the nagging question . . . .

What Is Not A Critical Lift?
As it turns out, it should be obvious that every lift should be taken seriously and be given ample planning and safety consideration. Nevertheless, the emphasis on critical lifts immediately begs the questions: (1) Is there a lift that should not be considered critical? (2) What would a non-critical lift checklist look like? To get the answers to these two questions, let's create negating statements for commonly occurring reasons that constitute critical lifts. By so doing we come up with:

A Checklist for Non-critical lifts
At the very least, every item below must receive a check before a lift can be considered non-critical. A non-critical lift is one that:

  • In noway will have the potential for personal injury or loss of life
  • Will not involve the lifting of personnel
  • Will not require rigging personnel to work directly under a suspended load
  • Is limited to a single crane
  • Involves a load that is less than 75% of the crane's rated capacity
  • Involves a load that is not environmentally hazardous or radioactive
  • Will be totally performed away from live electrical conductors
  • Will be totally conducted away from unprotected equipment and utilities
  • Does not involve potentially unstable loads
  • Will be performed where the crane's founding soil conditions are fully understood
  • Allows direct view of the load by the operator during lifting, swinging, and placing
  • Will not require the manipulation, such as turning or drifting, of the load during flight
  • Will not involve shock loadings or lateral forces

Caution: The checklist above is not all-inclusive. Each job must be evaluated on a case-by-case basis.

So What's Left?
Actually no much. Given safety implications and the risk involved in even simple, non-complicated lifts, some people would argue that every lift should be considered critical.