Construction Safety - Part 4 (Stairways)

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    There must be a stairway or ladder at points of access

    where the elevation break is 48 cm (19 in) or more.

    48 cm

    Break in elevation

    Stairway or Ladder

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    Stair should carry

    490 kg/sq. m load

    with FS = 4.

    Rails must be able

    to withstand a forceof 100 kg from any

    directions.

    Stair Capacity and

    Top Rail Strength

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    Can be pitched up to

    60 degrees with tread

    not less than 15 cm.

    Must have uniform

    riser height and tread

    Service Stairs for Construction

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    Stairways landings must

    be provided at every 3.6

    m height.

    Do not store materials

    on stairways used for

    general access.

    Stairway Landings

    Landing

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    Dangerous Conditions

    Fix slippery conditionsbefore using.

    Stairway parts must be

    free of protruding nails,or any projections

    which may cause

    injuries or snag

    clothing.

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    Keep in good condition.Ensure rungs are uniformly fixedInspect ladders before useSecure ladders to prevent from slipping

    Ensure it is on stable and level groundKeep ladders free from slipping hazardsUse ladders only for their designedpurpose

    General Ladder Requirements

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    Ladder Angle

    Non-self-supporting

    ladders:

    (lean against a support)

    Position at an angle

    where the horizontal

    distance is 1/4 the

    vertical height

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    Side rails must

    extend at least

    90 cm (3 feet)

    above the upper

    landing.

    Ladder Rail Extension

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    A competent personmust inspect laddersfor any defect, likebroken or missingrungs

    When defective ladderis found, mark itdefective or tag it "DoNot Use

    Damaged or Defective Ladders

    Missingrung

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    Face the ladder whengoing up or down

    Maintain three pointsof contact whenclimbing a ladder

    Climbing the Ladder