C9.4 Working at height Flashcards

1
Q

what is work at height

A

anything above floor level

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2
Q

work at height hazards

A

fall of persons
falling objects
contact with / crush against structures
normally inaccessible hazards, eg overhead power

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3
Q

factors affecting work at height

A

height of fall
fragile surfaces
adverse weather

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4
Q

when to use ladder

A

vertical access

short duration task

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5
Q

when not to use ladder

A
where 2 hands needed for task
where equipment / materials are large
excessive height
long duration
ladder cannot be secured
cannot be protected from vehicles
adverse weather
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6
Q

ladder safety

A
pre-use check
safe position
firm level base
75 degree angle (1 out 4 up)
tied / footed
use both hands to grip when ascend / descend
don't overload
only one person at a time
use toolbag / holster
don't over reach
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7
Q

trestles

A
use where scaffold impracticable
low level
edge protection
firm level surface
trestle every 1.5 metres
do not exceed SWL
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8
Q

erection / dismantling scaffolding

A

competent persons
minimise risk of items falling
intermediate platform with guard rails / toeboards before build next level

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9
Q

scaffold inspections

A

before first use
after alteration
after event likely to affect stability
regularly not exceeding 7 days

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10
Q

falsework

A

temp structure to support permanent structure
risk assess & SSW
inspect & certify for use
periodic inspection

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11
Q

factors ref falling materials

A
poor housekeeping
no toeboards / edge protection
incorrect slinging
incorrect stacking
gaps in platforms
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12
Q

roof work controls

A

edge protection
safety harnesses and lanyards
marked areas where not possible to fall from
safety nets for leading edges where roof materials laid / removed
staging platforms

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13
Q

access cradles

A
installed by competent persons
thorough exam report
safe area fenced off
not used in poor weather
trained users
switch off and make dead at end of use
secure so not accessible to others
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14
Q

boatswains chairs

A
light short duration work
rigid seat
person hoisted or lowered
use where cannot provide practicable platform
install by competent person
pre-use check
test / exam certs
safe area below
secure after use to prevent swinging
dry off ropes
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15
Q

rope access

A
abseiling
where work platform not practicable
install by competent person
trained user
more than one anchor point
secure tools / equipment
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16
Q

collective fall arrest

A

safety nets - competent installer, regular inspection

air bags - suitable for poss fall height

17
Q

safety harnesses / belts

A
belt = work positioning
harness = fall arrest
emergency rescue system - 15 mins max
degradation by UV
poss injury from impact load of harness on body
anchor point above
suitable anchor - tested
training
6 monthly inspection