Working in Elevated Positions
5000 lbs per employee, twice the potential impact load
Anchor points used for the attachment of a personal fall arrest system must me capable of supporting at least?
Positioning Strap
Are used with positioning device system and should be replaced when the red insert is visible due to excessive wear
Positioning Device System
Also known as work positioning equipment, consists of a body belt or body harness system and strap rigged to allow an employee to be supported on an elevated vertical surface, such as a pole or tower, and work with both hands free while leaning.
Depth of setting
Always check the the pole to confirm the ____ ___ ____ for the pole.
4 feet
Above ___ you need fall protection?
4 Feet
At what height above ground does osha rule 1910.269 require the use of fall protection equipment?
ANSI Z359.1
Body harness must be constructed to meet ?
1.25 inches
What is the minimum gaff length allowed by OSHA?
Employer must brace ,support the pole or replace it
What must be done to a pole if it's strength is not sufficient to support a change in strain from climbing or installing equipment and conductors ?
Fall arrest system
What type of fall protection system includes harness, lanyards and anchorages?
Fall arrest system
What type of fall protection system is required when working on a horizontal surface?
900 pounds
When using body belts (fall arrest system)
Plug a hole with a treated dowel or plastic plug
When utilizing the bore test method, what must be done to the test holes after drilling is completed?
Lanyard
A device that is made of synthetic material and connects between the body harness and an anchorage.
Insulating Distance
A distance and the lineworker must remain away from a pole (12 inches) when performing live-line work from a insulated pole- mounted platforms.
Harness, lifelines/lanyards and anchorages
A fall arrest system consist of ?
Industry Best Practice
A practice that is common among the majority of companies in the country's or a region is called what?
Industry Best Practice
A practice that is common among the majority of the companies in the nation or a particular region.
Fall Arrest System
A system that arrest an employee in a fall from a working level and minimizes arresting forces. Fall arrest system consist of three main components: lifelines/lanyards, and anchorages.
Fall Protection Methods
Fall arrest system and positioning device system are the two main methods of protecting power delivery workers from falls. Fall arrest is used on horizontal surfaces, while positioning device systems are used on vertical surfaces.
6 feet
Fall arrest system must be rigged in such a way an employee cannot free-fall more than ?
Suspension trauma
Hanging in the air for a long time with a harness on, that cuts off circulation to the leg
Holes
Hollow spots and woodpeckers holes can reduce strength of a wood pole.
3 feet
How far above the landing must an extension ladder extend?
One
How many employees per vertical lifeline allowed?
10 years
How many years should a pole be tested ?
Reduces the intensity of swing
Lifelines should be attached in such away that it ?
100 percent
OSHA Mandated fall protection for all employees, the industry has adopted ______ attachment and pole devices.
Gaff Length
OSHA mandates that gaffs used for climbing wood poles cannot be less than 1.25 inches
Pole Strength
OSHA regulation 1910.269 states: before allowing employees to subject elevated structures, such as poles or towers, to such stress are climbing or the installation or removal of equipment may impose, the employer shall ascertain that the structure are capable of sustaining the additional or unbalanced stress. If the pole or other structure can not withstand the expected loads the employer shall brace or otherwise support the pole or structure so as to prevent failure. Poles can be braced with diggers, ropes, piles, or by tying the old pole to the new pole if it is being replaced.
Anchorage
OSHA requires anchorage to have the capacity to shot twice and the impact load of an employee fall, or 5,000 pounds for fall arrest systems and 3,000 pounds for positioning device systems.
Free Fall Distance
OSHA requires that a free fall distance do not exceed 2 feet for positioning device systems or 6 feet for fall arrest systems, when a lower level is not present.
Emergency Rescue Training
OSHA requires that employee shall be trained in emergency rescue procedures. In addition, OSHA has made employee rescue a performance base standard, which means that employees must demonstrate how to do it .
1800
OSHA's _____ pounds maximum arresting force requirement is met.
knots
One large knot serval smaller ones at the same height on the pole mat be evidence of a wreak point on the pole.
shell rot and decay
Rotting and decay are cutout hazards and are possible indications of age and internal condition of the pole.
38 inches
The minimum length of any insulated work platform is ?
Cracks
The pole should be inspected for _______. Horizontal ____ perpendicular to the wood may weaken the pole.
OSHA's 4 foot
The rule applies, which is the working distance above ground he
4 feet
The working distance above ground when fall arrest or positioning device systems are required according to OSHA.
Positioning Device System
There system are required when working on vertical surfaces so the worker has both hands free. They consist of a body belt and positioning straps.
Double legged lanyard
This lanyard allow the worker to ascend and descend while remaining attached at all times.
12 inches
This measurement is referred as the D size and can be up to?
Pole Testing Methods
Three methods were discussed; hammer test, Rocking test and bore test
Portable Ladder Types
Three types were discussed : hook ladders, extension ladders and step ladders
Emergency Rescue Objective
To safety and quickly get the injured person to the ground, start CPR, and get professional medical attention.
5,000
Twice the impact load of employee fall (fall arrest system)
3000 pounds
Twice the impact load of employee fall. Strength requirements of positioning device system
Fall arrest and positioning device systems
Two types of fall protection are used in the power delivery industry?
5000 pounds
What are the strength requirements for anchorages used with fall arrest system?
3000 pounds
What are the strengths requirements for anchorage used with positioning systems?
General condition
You should check the _______ ______ of the pole for inspected for buckling at the ground line and for unusual angle with respect to the ground.
Burn marks
________ from transfers failures or conductors faults could damage the pole so that it Connor withstand mechanical stress changes.
Center of back
D ring positioning location?
Lifelines
Devices made of synthetic or wire rope and can be placed in horizontal configurations and used with a lanyard or part of a retractable is unit that replaces a lanyard. Vertical cables lifelines are common on a cellular and wind towers.
Fall Arrest
Fall arrest system are required when working on Horizontal surface and consistent of a harness, lanyard or lifeline, and anchorage point. The system should be installed so arresting force is minimized should an employee fall. Arresting forces cannot exceed 1,800 pounds for when a harness is used.
Using the 4:1 method so at 12 feet the base should be 3 feet
IF the working height of an extension ladder is 12 feet, how far out should the base from the surface in which the ladder is leaning?
Vertical cable lifline
Is a system is very popular and it's communication towers and wind turbines and is becoming more popular with power transmission structures.
310
Limit for the application of tensions listed in 1926.502. If combined took and body weight exceeds _____ pounds, employer is required to modify personal fall arrest criteria to provide adequate protection.
6 feet
Maximum allowable distance employee can free fall before fall arrest engages, if lower level is not presented. (fall arrest system)
2 feet
Maximum allowed distance employee can free fall unitizing position device system.
3.5 feet
Maximum allowed distance for deceleration device to expand? (fall arrest system)
1800 pounds
Maximum arresting force on employee when using body harness (fall arrest system)
soil conditions
Soft wet or loose _____ ____ may not support any changes of stress on the pole
5,000
Strength requirements of connecting assemblies of equipment. D rings, snap hooks, lanyard, harnesses.
True
T or F, should poles be inspect and tested before climbing or working on them from aerial left?
Portable Ladder 4-1 and 3 Foot Rules
The 4-2 rules states that the distance between the base of the laser is set from the horizontal surface, against which the ladder is leaning, should be 1/4 of the working length of the ladder. The 3 foot rule states that the ladder must extend 3 feet above the landing.
Double legged lanyards and Vertical cable lifeline
What are the two methods of climbing towers where the employee can remain attached at all times ?
Suspension trauma
What can happen to an employee if they are suspended in a harness for too long of a period?
6 feet
What is the maximum allowed distance an employee can free- fall utilizing a fall arrest system?
2 feet
What is the maximum allowed distance an employee can free-fall utilizing a positioning device system?
Get injured person to ground safety and quick, start cpr and get medical attention
What is the objective of every emergency rescue?
Positioning Device System
What type of fall protection system is required when working on a vertical surface ? And consist of a body belt and positioning strap?
When employees wants to know how to determine if a positioning strap is "worn out " What do you tell her?
When the red inserts is showing
