091415
2.2
Personal
Fall
Arrest
System:
A
PFAS
is
an
assembly
of
components
and
subsystems
used
to
arrest
a
person
during
a
fall
event.
A
PFAS
typically
consists
of
an
anchorage,
a
deceleration
device
such
as
a
Shock
Absorbing
Lanyard
(SAL)
or
Self
Retracting
Device
(SRD),
or
a
Fall
Arrester
Connecting
Subsystem
(FACSS),
and
a
properly
fitted
Full
Body
Harness
(FBH).
Maximum
permissible
free
fall
in
a
typical
PFAS
is
6'.
PFAS
used
in
conjunction
with
this
equipment
must
meet
ANSI
Z359
requirements
and
applicable
OSHA
1926.502
regulations.
When
used
in
accordance
with
OSHA
regulations,
the
SRD
will
limit
free
fall
to
2
feet
or
less.
See
Figure
2.
The
SRD
maintains
a
lifeline
reserve
wrapped
around
the
drum
to
activate
the
brake
in
the
event
of
a
fall.
These
reserve
wraps
are
encased
in
red
tubing
as
shown
in
Figure
2.
If
red
tubing
is
visible
at
the
lifeline
aperture,
the
lifeline
is
extended
too
far.
Allow
the
lifeline
to
retract
back
into
the
housing
until
the
red
tubing
is
within
the
housing.
2.3
Rescue:
Rescue
operations
require
specialized
equipment
that
is
beyond
the
scope
of
this
manual.
The
employer
must
have
a
written
rescue
plan,
the
means
to
implement
it
and
the
ability
to
communicate
that
plan
to
users,
authorized
persons,
and
to
rescuers.
See
ANSI
Z359.
2.4
Application
Limits:
Take
action
to
avoid
moving
machinery,
sharp
edges,
abrasive
surfaces,
as
well
as
chemical,
thermal,
and
electrical
hazards,
including
the
arc
from
welding
applications,
as
contact
may
cause
serious
injury
or
death.
Do
not
use
the
SRD
in
severe
cold.
The
SRD
is
not
designed
for
use
in
restraint,
personnel
riding,
suspension,
or
work
positioning.
Do
not
use
the
SRD
for
these
applications
except
as
a
back
‐
up
PFAS.
The
SRD
discussed
in
this
manual
is
not
designed
for
Leading
Edge
applications.
If
there
is
a
Leading
Edge
hazard,
use
an
SRD
specifically
designed
for
Leading
Edge
applications.
The
SRD
is
designed
for
overhead
use
only.
Only
one
PFAS
may
be
attached
to
an
anchorage
at
one
time.
Only
one
person
may
connect
to
the
SRD
at
a
time.
See
paragraph
3.1
for
capacity
information.
DO
NOT
use
the
SRD
to
lift
tools,
materials,
or
personnel.
3.
SYSTEM
REQUIREMENTS
3.1
Capacity:
The
SRD
is
designed
for
use
by
personnel
with
a
total
combined
weight
(tools,
clothing,
etc.)
of
130
–
310
lbs.
3.2
Compatibility
of
Connectors:
Connectors
are
considered
to
be
compatible
with
connecting
elements
when
they
have
been
designed
to
work
together
in
such
a
way
that
their
sizes
and
shapes
do
not
cause
their
gate
mechanisms
to
inadvertently
open
regardless
of
how
they
become
oriented.
Contact
FallTech
if
you
have
any
questions
about
compatibility.
Connectors
must
be
compatible
with
the
anchorage
or
other
system
components.
Do
not
use
equipment
that
is
not
compatible.
Non
‐
compatible
connectors
may
unintentionally
disengage.
Connectors
must
be
compatible
in
size,
shape,
and
strength.
Self
‐
closing,
self
‐
locking
snap
hooks
and
carabiners
are
required
by
ANSI
and
OSHA.
3.3
Compatibility
of
Components:
Equipment
is
designed
for
use
with
approved
components
and
subsystems
only.
Substitutions
or
replacements
made
with
non
‐
approved
components
or
subsystems
may
jeopardize
compatibility
of
equipment
and
may
affect
the
safety
and
reliability
of
the
complete
system.
3.4
Making
Connections:
Only
use
self
‐
locking
snap
hooks
and
carabiners
with
this
equipment.
Only
use
connectors
that
are
suitable
to
each
application.
Ensure
all
connections
are
compatible
in
size,
shape,
and
strength.
Do
not
use
equipment
that
is
not
compatible.
Visually
ensure
all
connectors
are
fully
closed
and
locked.
Connectors
(snap
hooks
and
carabiners)
are
designed
to
be
used
only
as
specified
in
each
product’s
user’s
instructions.
See
Figure
13
in
Appendix
B.
3.5
Personal
Fall
Arrest
System:
A
PFAS
is
an
assembly
of
components
and
subsystems
used
to
arrest
a
person
during
a
fall
event.
See
paragraph
2.2.
3.5.1
PFAS
Anchorage
Strength:
An
anchorage
selected
for
PFAS
must
have
a
strength
able
to
sustain
a
static
load
applied
in
the
direction
permitted
by
the
PFAS
of
at
least:
a)
Two
times
the
maximum
arrest
force
permitted
when
certification
exists,
or
b)
5,000
lbs.
(22.2
kN)
in
the
absence
of
certification.
Table
2
provides
test
data
on
typical
performance
attributes
of
the
three
principal
parameters
(see
paragraph
1.1)
for
FallTech
self
‐
retracting
devices,
listed
by
model
number
and
class.
In
certain
situations,
the
qualified
person
can
determine
that
a
given
structure
is
a
suitable
anchor
point
based
on
a
tested
arrest
distance
and
tested
maximum
arrest
force,
with
a
safety
factor
of
two.
3.6
Definitions:
The
following
are
definitions
of
terms.
Authorized
Person:
A
person
assigned
by
the
employer
to
perform
duties
at
a
location
where
the
person
will
be
exposed
to
a
fall
hazard
(otherwise
referred
to
as
“user”
for
the
purpose
of
these
instructions).
Certified
Anchorage:
An
anchorage
for
fall
arrest,
positioning,
restraint,
or
rescue
systems
that
a
qualified
person
certifies
to
be
capable
of
supporting
the
potential
fall
forces
that
could
be
encountered
during
a
fall
or
that
meet
the
criteria
for
a
certified
anchorage
prescribed
in
this
standard.
Competent
Person:
One
who
is
capable
of
identifying
existing
and
predictable
hazards
in
the
surroundings
or
working
conditions
which
are
unsanitary,
hazardous,
or
dangerous
to
employees,
and
who
has
authorization
to
take
prompt
corrective
measures
to
eliminate
them.
Harness
Stretch:
Amount
of
vertical
travel
of
the
Full
Body
Harness
D
‐
ring
during
a
fall
arrest.
Qualified
Person:
A
person
with
a
recognized
degree
or
professional
certificate
and
with
extensive
knowledge,
training,
and
experience
in
the
fall
protection
and
rescue
field
who
is
capable
of
designing,
analyzing,
evaluating
and
specifying
fall
protection
and
rescue
systems
to
the
extent
required
by
this
standard.
Rescuer:
Person
or
persons
other
than
the
rescue
subject
acting
to
perform
an
assisted
rescue
by
operation
of
a
rescue
system.
4.
INSTALLATION
AND
OPERATION
WARNING
Do
not
alter
or
intentionally
misuse
this
equipment.
Consult
FallTech
when
using
this
equipment
in
combination
with
components
or
subsystems
other
than
those
described
in
this
manual.
Do
not
use
rebar
hooks,
large
carabiners
or
large
snap
hooks
to
connect
to
the
FBH
dorsal
D
‐
rings
or
to
any
small
diameter
non
‐
compatible
anchor
point
as
this
may
cause
a
roll
‐
out
condition
and/or
unintentional
disengagement.
The
SRD
discussed
in
this
manual
is
not
intended
for
Leading
Edge
applications.
Do
not
insert
extra
connectors
between
the
SRD
lifeline
connector
and
the
FBH
dorsal
D
‐
ring,
except
an
approved
D
‐
ring
extender.
Use
caution
and
take
action
to
avoid
sharp
and/or
abrasive
surfaces
and
edges.
4.1.
Install
the
SRD:
Examine
the
work
area
and
take
action
to
address
hazards.
Falls
are
a
serious
hazard
when
working
at
height.
There
are
several
closely
related
facets
of
fall
hazard
management
with
a
PFAS;
Anchor
location
Minimum
Required
Fall
Clearance
(MRFC)
Swing
Fall
Expanded
Work
Zone
3
Содержание SRD
Страница 11: ...103014 11...
