SUBPARTS V THROUGH Z AND RELATED SAFETY PRACTICES

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SUBPARTS V THROUGH Z AND RELATED SAFETY PRACTICES
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• CHAPTER 11

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OUTLINE

• Subpart V Power Transmission and Distribution
• Subpart W Rollover Protective Structures and
  Overhead Protection
• Subpart X Stairways and Ladders
• Subpart Y Commercial Diving Operations
• Subpart Z Toxic and Hazardous Substances
• When Safety is Compromised

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SUBPART V POWER TRANSMISSION AND DISTRIBUTION

• General Requirements
• All line are considered energized unless tested
• All lines must be disconnected before work starts
• Complete and comprehensive training of workers
• Minimum distance based on Voltage

Voltage Range (kV) Minimum distance (ft)
2-15 2
15-35 2.33
35-46 2.5
46-72.5 3
72.5-121 3.5
230-242 5
345-362 7
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SUBPART V POWER TRANSMISSION AND DISTRIBUTION
CONTD

• Tools and Equipments
• Proper Insulation and inspection on the handles
  of tools
• Conductive tools must be kept a safe distance
  away from source
• Rubber protected/protective equipments should be
  air-tested to identify holes and weak spots.
• Mechanical equipments must be grounded or
  barricaded or both
• All materials (cables, utility poles...etc)
  should be marked, tested before unloading and
  shall be stored with a safe distance from the
  energy source.

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SUBPART V POWER TRANSMISSION AND DISTRIBUTION
CONTD

• Overhead Lines
• When working on overhead lines, poles, and other
  structures, all working loads shall be calculated
  and bracing shall be applied whenever needed
• Underground Lines
• When working underground, warning signs and
  barriers should be placed around underground
  openings
• The atmosphere of the underground environment
  must and determined to be safe
• Before excavating for underground work, potential
  hazards ( e.g. sewage, cables, gas lines) should
  be identified and taken into consideration

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SUBPART V POWER TRANSMISSION AND DISTRIBUTION
CONTD

• Safety Fact
• A construction Company in Plummer, Minnesota,
  failed to check for underground hazards before
  digging and ruptured a crude oil pipeline. Before
  the pipeline could be repaired more than 200,000
  gal of crude oil had leaked into a nearby river.
  Not only did this cause an environmental
  nightmare, but the nearby town was evacuated and
  the company was fined 50,000.

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SUBPART W ROLLOVER PROTECTION STRUCTURES AND
OVERHEAD PROTECTION

• All material handling equipments (scraper,
  dozersetc) must have proper rollover protection
  if manufactured after 1972- or by retrofitting
  if manufactured before this date
• ROPs must be designed to withstand at least twice
  the weight of the equipment at the point of
  impact.

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SUBPART X STAIRWAYS AND LADDERS

• Requirement the 19 inches rule
• Spiral staircases are not allowed unless the
  staircase is a permanent part of the construction
• Construction staircase requirements
• Landings must be at least 30 in wide x 22 in deep
  at every 12 ft of vertical height
• Slope angle should run between 30 to 50 degrees
• Risers/tread heights and widths must be uniform
  within ¼ of an inch
• Handrails must be provided along all unprotected
  sides that rise more than 30 in or four or more
  risers (whichever is less) and shall withstand a
  force of 200lb applied within 2 in of the top of
  the rail

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SUBPART X STAIRWAYS AND LADDERS CONTD

• Ladders
• Most of the ladders requirements are the
  manufacturer requirements. From the construction
  end, requirements can be categorized as load
  capacity requirements and safety practices

Type Grade Load Capacity
I Industrial 250 lb
IA Extra heavy duty industrial 300 lb
II Commercial 225 lb
III household 200 lb
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SUBPART X STAIRWAYS AND LADDERS CONTD

• Ladders and Training
• All workers using ladders must be trained to
• Identify fall hazards relating to stairs and
  ladders
• Erect, maintain, disassemble fall protection
  systems
• Safe construction, placement, use, and care of
  stairs and ladders
• Maximum load capacity of ladders and ladders
  specs
• Aware of the contents of 29 CFR 1962, subpart X

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SUBPART Y COMMERCIAL DIVING OPERATIONS

• General Requirements
• Personnel Requirements
• Proper operations and maintenance of tools,
  equipments, and systems used in diving
• Proper diving techniques
• Emergency procedures related to diving operations

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SUBPART Y COMMERCIAL DIVING OPERATIONS CONTD

• Employer Requirements
• Ensures all of the diving team members have been
  trained on
• First aid precautions by the American Red Cross
  or equivalent trainer
• Physiological aspects of working in such
  conditions
• The specifically assign task for each individual

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SUBPART Y COMMERCIAL DIVING OPERATIONS CONTD

• Safe Diving Procedures Manual
• It is required by law for the employer to
  distribute for all the diving team safe diving
  procedures manual that includes the following
  information beyond the actual OSHA 29 CFR 1926
  subpart Y
• Safety procedures and corresponding checklists
  for diving operations
• Assignments and responsibility of all the diving
  team
• Equipments procedures and corresponding checklist
• Emergency procedures for all predictable problems
  and hazards
• Evacuation plan for unpredictable problems

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SUBPART Z TOXIC AND HAZARDOUS SUBSTANCES

• OSHA requires before starting any construction
  job to answer the following questions about any
  hazardous chemical in the job site
• What is the chemical present? What is the phase?
• Possible routes of entry into the body
• What is the hazard associated with each route of
  entry?
• How can the hazard be detected?
• PEL and REL values associated with the hazards
• What is the IDLH and TLV values for the hazard
• Exposure control unit is required? What type?
• What type of training should workers have?

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SUBPART Z TOXIC AND HAZARDOUS SUBSTANCESCONTD

• Safety Fact
• Removing Asbestos is one of the most challenging
  renovation and demolition jobs. OSHA standards
  and comprehensive, specific, and uncompromisable.
• A company in Hasting, NY cut few corners during
  the process of removing Asbestos. Its owner was
  sentenced to 37 months in prison and 3 years of
  supervised probation. He was fined 5,000
  personally and 55,000 to his company.
• The company now is out of business.

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• When Safety is Compromised!

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