Safety Part 3 Flashcards
In a Job Safety Analysis the task at hand is broken down into its _______ and then each step is analyzed for it’s_____________
individual parts or steps
potential hazards
Used across wall openings or as a barrier around floor openings to prevent falls
Railings
Alert workers to hazards but provide no real protection. Made of plastic tapes or rope and color coded
Warning Barricades
Indicate Danger! No one enters! Used when there is danger from falling objects or when a load is suspended over an area.
Red Warning Barricades
Means caution, you may enter but beware. Used around wet areas or loose dust. If it has black letters, it is warning of something like bumping, stumbling or falling.
Yellow Warning Barricades
Means radiation warning, no one may pass with out authorization, training and the right equipment. Often used where pipe welds are being xrayed.
Yellow and Purple Warning Barricades
Give both visual warning and protection from injury. They can be wooden posts and rails, posts and chain or steel cables. People shouldn’t be able to get past protective barricades.
Protective Barricades
Placed on barricades, so they can be seen at night.
Blinking lights
Used to cover open holes in a floor or in the ground.
Hole covers
Formula of potential fall distance
Length of Lanyard +Deceleration Distance+ Height of Worker + Safety Factor
Numbers
6+3.5+6+3=18.5
Load capacity is 375 pounds., extra heavy duty/professional use
TYPE I AA
Load capacity is 300 pounds., extra heavy duty/professional use
TYPE I A
Load capacity is 250 pounds ., heavy duty/ industrial use
TYPE I
Load capacity is 225 pounds., medium duty/ commercial use
TYPE II
Load capacity is 200 pounds., light duty/ household use
TYPE III
Excavation walls stay vertical as long as the excavation is open
Solid Rock
Fine- grained, cohesive : clay, hardpan and caliche. Particles too small to see with the nakid eye.
Type A soil
Angular rock, silt, and similar soil
Type B soil
Coarse- grained, granular; sand, gravel, and loamy sand. Particles are visibles to the naked eye.
Type C soil
3/4 to 1 or 53 degrees
Type A soil Formula
1 to 1 or 45 degrees
Type B soil Formula
1.5 to 1 or 34 degrees
Type C soil Formula
How far away from the edge should you set anything up from a trench?
2 ft
Structures used that are made of wood or metal that support the sides of a trench to prevent sides from caving in. Plating is held firmly in place with expandable braces.
Shoring
So long as the workers are in the structure they are protected from cave ins.
Shielding structures or trench boxes.
