
OSHA,
Codes & Standards
SECTION 5 - DUTIES
(a)
Each employer
1.
shall
furnish to each of his employees employment and a place of employment which are
free from recognized hazards that are causing or are likely to cause death or
serious physical harm to his employees;
2.
shall
comply with occupational safety and health standards promulgated under this
Act.
(b) each employee shall comply
with occupational safety and health standards. Find all rules, regulations, and
orders issued pursuant to this Act which are applicable to his own actions and
conduct.
|
Note: |
a)
Your company can be cited and fined under the above standard if there is no
specific standard in the OSHA 1910 or 1926 rules. b) Also, you can be cited under the
general duty clause even if another standard does call for a specific safety
control measure or allows a certain activity, if it can be shown that you
understood there to be hazard that the standard didn't adequately cover and
you failed to properly address it |
OSHA Regulations that apply to
window cleaning operations:
|
Transportable Suspended Scaffolding |
OSHA CFR
29-1910.28(F), (G) |
|
Permanent Suspended Scaffolding |
OSHA CFR 29.1910-66 |
|
Mobile Lifts (vehicle mounted) |
OSHA CFR 29-1910.67 |
|
Manually Propelled-High Lifts, Etc. |
OSHA CFR 29-1926.556 |
|
Ladders |
OSHA CFR 29-1910.25
thru 1910.26 |
|
Tower Scaffolding |
OSHA CFR 29-1910.29 |
|
Overall Employee Safety & Chemical Use |
OSHACT, OSHA CFR 29-
1910.1200 (HAZ-COM) |
|
Rope Descent System |
*OSHA policy March
12,1991 |
OSHA
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION
To obtain copies of the entire Codes of Federal Regulations as listed, contact
1-202-783-3238. They are also available from their website at www.osha.gov.
ANSI Regulations that apply to
window clean/building maintenance:
|
Permanent Suspended Scaffolding & Powered Equipment ANSI |
A-120.1 |
|
Mobile Lifts |
ANSI A-92.3
(Manual) |
|
Ladders |
ANSI A-14.2
(Metal) |
|
Tower Scaffolding |
ANSI A-10.8 |
|
Harnesses, Lanyards, Lifelines |
ANSI Z-359 |
|
Rope Descent System |
ANSI 1-14.1
|
|
Note: Dave Johnston, Director of Codes and Standards for BOMA International sits on the ANSI 1-14.1 Window Cleaning Safety Committee. |
|
AMERICAN NATIONAL STANDARDS INSTITUTE
To obtain ANSI Standards
that are held by ASME, call 1-800-843-2763
Their website is: www.ansi.org
To
obtain ANSI Standards that are held by SIA, call 818-786-3027
Their website is: www.scaffold.org
To
obtain a copy of the ANSI 114 Draft go to www.iwca.org
U.S. Department of Labor
Occupational Safety and Health Administration Washington, D.C.
March
12, 1991
|
Memorandum to: |
REGIONAL ADMINISTRATORS |
|
From: |
PATRICIA K.
CLARK DIRECTOR |
Descent
control equipment (friction devices such as "Sky Genies, racks" and
"figure eights") is not covered by existing Occupational Safety and
Health Administration (OSHA) standards. Therefore, the Agency addresses the
safety of descent control devices through its enforcement of section 5 (a) (1)
of the OSHA Act. Under this approach. OSHA references the safety principles
applicable to similar equipment (in this case, boatswain's chair,. single point
and two-point suspended scaffolds) and national consensus standards in so far
as they are pertinent to the subject matter.
As
indicated in the December 5, 1989 letter, OSHA allows the employees to use
descent control equipment, provided that the equipment is used in accordance
with the instructions, warnings and design limitations set by manufacturers or
distributors. In addition, the Agency expects employers whose employees use
descent control devices to implement procedures and precautions as follows:
1.
Training
of employees in the use of equipment before it is used;
2.
Inspection
of equipment each day before use;
3.
Proper
rigging, including sound anchorages and tiebacks, in all cases, with particular
emphasis on providing tiebacks when counterweights, cornice hooks,
or similar non permanent anchorage systems are used;
4.
Use
of a separate fall arrest system (including bodybelt, sit harness, or full body
harness, rope grab or similar device, lifeline; and anchorage (all of which are
completely independent of the friction device and its support system), so that
any failure in a friction device, support seat (or harness), support line, or
anchorage system will not affect the ability of the fall arrest system to
operate and quickly stop the employees fall;
5.
All
lines installed (such as by using knots, swages or eye splices) when rigging
descent control devices shall be capable of sustaining a minimal tensile load
of 5,000 pounds.
6.
Provisions
are made for rescue;
7.
Ropes
are effectively padded where they contact edges of the building, anchorage,
obstructions or other surfaces which might cut or weaken the rope;
8.
Provisions
are made for intermittent stabilization for descent in excess of 130 feet.
THE USE OF SUSPENDED EQUIPMENT
REQUIRES THREE BASIC SYSTEMS:
SUPPORT SYSTEM -
Keeps the suspended equipment from failing. Counter weighted rolling outrigger system attached to
anchors with a minimum breaking strength of 5400 pounds or better. The counter
weighted load will be calculated at least the minimum ratio allowed which is
four to one (see attached formula). This system may include: outriggers
(stationary or rolling), weights, roofcars, davit systems. This system always
includes the rope anchor and lifeline anchor that relies on the strength of the
building.



SUSPENDED
SYSTEM - All equipment that hangs from the support system. A 30' aluminum walkboard (deck) with
two 1000 pounds maximum rated load Spider SC-40 Traction Hoists mounted on each
end. 5/16"-8.3mm diameter 6119 Seale construction IWRC, right regular lay,
preformed, improved plow steel wire rope are threaded through the hoists and
terminated at the suspension eye bolt in the end of the outrigger beam. The
motors are powered by 220 Volt, single phase, 6 amp current supplied by the
building. This system may include a powered stage, wire rope, electrical cord,
hoists, Rope descent system (RDS), tools, equipment and the worker(s). This
system always includes the fall arrest equipment.
Suspended System 1:

Suspended System 2:

FALL ARREST SYSTEM -
Protects the life of a worker in the event of a fall. Each worker on the platform will have
his own independent fall-arrest equipment consisting of a full-body harness, a
shock absorbing lanyard, a Miller 5/8" rope grab attached to a PMI static
5/8" E-Z Bend life line with a minimum breaking strength of 13,000 pounds
secured to an anchor independent from the suspended system. The anchor must be
able to hold at least 5,000 pounds.
Approved
equipment for a fall-arrest system is the lifeline anchorage, the lifeline
(safety line), a shock absorbing lanyard, a rope grab and a full body harness.

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2008
- Martin's Window Cleaning |
11209 Todd | Houston, TX 77055 | 713-956-0112 | Fax
713-956-5521