Revision Implementation

Transcription

1 Revision Implementation Utility Line Clearance Contractors Perspective Joseph F. Tommasi Corporate Director of Safety The Davey Tree Expert Company President The Utility Line Clearance Coalition Chair Rigging and Tree Removal Task Group ANSI Z133 Committee

2 The Utility Line Clearance Coalition Asplundh Tree Expert Company, Burford s Trees, Inc., The Davey Tree Expert Company Lewis Tree Service, Inc., Lucas Tree Experts, Inc. McCoy Tree Surgery, Inc., Nelson Tree Service, Inc. Penn Line Service, Inc. Townsend Tree Service, Inc. Trees, Inc. Wright Tree Service, Inc.

3 Line Clearance Arborist at Work

4 Line Clearance Work Methods Pruning and Sectional Removal from Aerial Device Pruning and Sectional Removal by Climbing Crew Tree Removal by a Felling Team from the Ground Mechanical Pruning with Boom Mounted Saws Manual Brush Cutting & Mechanized ROW Mowing Herbicide and Tree Growth Regulator Treatment Site or Project Specific per Contract w/ Utility

5 Line Clearance Section (x) defines lineclearance tree trimming as [t]he pruning, trimming, repairing, maintaining, removing, or clearing of trees, or the cutting of brush, that is within the following distance of electric supply lines and equipment: (1) For voltages to ground of 50 kilovolts or less 3.05 meters (10 feet); (2) For voltages to ground of more than 50 kilovolts 3.05 meters (10 feet) plus 0.10 meters (4 inches) for every 10 kilovolts over 50 kilovolts.

6 Application for Line Clearance Paragraphs (a)(2), (a)(3), (b), (c), (g), (k), (p), and (r) of this section apply to line-clearance treetrimming operations performed by line-clearance tree trimmers who are not qualified employees. (a)(2) Training (a)(3) Information Transfer (b) First Aid (c) Job Briefing (g) Personal Protective Equipment (k) Materials Handling and Storage (p) Mechanical Equipment (r) Line Clearance Tree Trimming Operations

7 (a)(2) Training LCTT employees: Safety practices of that pertain to their respective job assignments Determine Live Parts, Nominal Voltage, MAD, and Safe Practices to maintain MAD Emergency Response Procedures Other necessary safety practices, see ANSI Z Arboricultural Operations Safety Requirements, Training Outline Risk Exposure and Work Method Based Continued Voluntary Documentation of Demonstrated Proficiency by Employers

8 (a)(2) Training Education and Skills On-Job-Training Use of e-lms expands but is supplemental Regular supervision and annual inspection to determine compliance Follow-up training and retraining: New work procedures or equipment Tasks performed infrequently Performance based

9 (a)(3) Information Transfer New provisions require the host and line clearance contractor to share safety-related information Of importance to the LCTT from the Host Utility Locations of Circuits and Equipment Nominal Voltages and Utility Specific MADs Emergency Contacts and Procedures Line Crew work activity that could affect our LCTT operations or vice versa Process to Request De-energize, Ground and Test

10 (a)(3) Information Transfer Sharing Information from LCTT to the Host Utility LCTTs do not work on the lines They may not recognize the same hazardous conditions as a line worker Would share information about downed lines, or broken poles that might be observed Would share information about work activity such as tree removal risk and procedure, and staying out of the LCTT work area if host employees are present Communications are usually verbal, , or by Host specified means and process

11 (c) Job Briefing Subjects: Hazards associated with the job, work procedures involved, special precautions, energy-source controls, and personal protective equipment requirements Information learned from Host that pertains to specific job / project performed by LCTT Contractor Number of briefings: Before start of work for each day or shift Additional job briefings if significant changes occur Based on nature and complexity of work Job planning for one-person crews

12 (g) Personal Protective Equipment Employer PPE Hazard Assessment Eye, Head, Hearing Aerial Lift Fall Protection Fall Restraint, or Fall Arrest Systems??? LCTT Employer Must Assess, Determine, and Implement System by December 31, 2015 OSHA does not consider trees and wires lower level, however, we work over buildings, etc. Minimize Possibility of Fall to Lower Level Lanyard short as practicable, no more than 6ft. Tree Climbing Fall Protection - (r) and Z133 Chainsaw Leg Protection - Z133

13 (r): Line Clearance Tree Trimming Operations

14 (r)(1)(iii) Electrical Hazards Inspection of site and tree prior to work LCTT shall maintain Minimum Approach Distance Paragraph (l) does not apply to LCTT, nor do the FR or arc-rated protective clothing requirements apply to LCTTs Aerial devices, and ladders maintain MAD (r)(1)(iv) Insulated Pole Tool vs. Conductive Tool Branches contacting energized conductors or within MAD may only be removed using insulating equipment Tools constructed of a material with insulating qualities employer can demonstrate meet (j)(1) Conductive tool (chainsaw) used after MAD is attained If LCTT cannot maintain MAD, request the line be De-energized, Grounded & Tested by the Utility

15 (r)(1)(iii) Electrical MAD Historically LCTT MAD Tables Published In ANSI Z133, 2012 current edition, 5 yr. cycle MAD Tables and Z133 are Under Revision OSHA Verified Phase to Ground Exposure Tables R-6 and R-7 Alternative MADs Includes Altitude Correction to 5, 10, 14k Ft Current Table Distances are similar to or greater than R-6 and R-7 Customer Provided MADs

16 Arborist Tools and Equipment Chainsaws, also see (e) No Drop Starting Two Handed Grip Leg Protection Required For Ground Operations - Z133 Climber Fall Protection Rope, climbing, and rigging Brush chippers Sprayers for Herbicide Applications Stump cutters Brush Saws The Z133 Standard contains Arborist Safety Requirements for Work Aloft, Pruning, Rigging, Tree Removal, Ground Work