PowerQuick Powered Ascender
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PQ500-1 1-Sep-15
considered. Similarly, where the included angle at the attachmen
t is high and produces a ‘multiplier’ effect, the
extra forces produced should be considered.
13.2.
Structure and Anchorage Points - Purpose Built Suspension Rigs
Where the suspension ropes or safety ropes are attached to a purpose built suspension rig specifically designed for industrial
rope access systems, the following applies:
1. The purpose built suspension rig should be clearly and permanently marked with its brand name, model
number, and serial number so as to ensure traceability. The purpose built suspension rig should also be
clearly and permanently marked with its capacity and intended use (for example "Capacity - one person
plus 50 lbs of equipment using industrial rope access method"). Any movable or removable
counterweights should be clearly marked with their mass in kilograms.
2. Erection and operating instructions should accompany every purpose built suspension rig and should be
easily understood. Where any additional equipment is specified, there should be clear instructions for
the use of such equipment on the purpose built suspension rig. Where counterweights are of the
removable type, instructions should clearly state the total weight of the counterweights required, and
where such counterweights are to be positioned for a given application.
3. An registered structural engineer should verify the purpose built suspension rig design. The design
should take into account the most adverse combination of loads but should in any case be designed for
not less than 12 kN ultimate strength.
4. Prior to use it should be ensured that the building or structure supporting the purpose built suspension
rig is adequate for the most adverse combination of loads transmitted from the industrial rope access
system.
14.
Operational Requirements
The following points should be noted regarding the use of The PowerQuick Powered Ascender for industrial rope access.
1. Suspension Point Height
Effective lateral restraints should be used to provide stability where appropriate, particularly on tall buildings. (A “rule of thumb” for
consideration of restraints is 165 ft.; however they may be required well before this height on some buildings).
Windy conditions
The PowerQuick Powered Ascender should not be used in high winds - this is a factor to be considered, particularly on taller
structures, when carrying out the Hazard Id and Risk Assessment. On many sites, a change in location from one face to another
may allow works to proceed, even in periods of high or gusty winds.
Rescue
The PowerQuick Powered Ascender system should not be used in any location where it is not possible to provide prompt
assistance or rescue if required. Prior to setting up of the system a rescue plan should be developed. Such a plan should consider
the following factors:
Guidance from rescue agencies.
Type and availability of rescue equipment.
Foreseeable types of injuries and ailments.
First aid experience of personnel on site.
Emergency services and associated plant (e.g. travel towers) available.
Possible need for a dedicated pre-set up rescue system to be in place.
14.1.
Surface Area and Weight
The PowerQuick Powered Ascender should not be used for work that requires the operator to handle objects and materials of
excessive size or weight or that may be difficult to handle due to wind loading. Where the largest side of an object has an area
greater than 12 inches square and/or the object is heavier than 20 pounds, methods to eliminate unacceptable risk should form
part of the hazard identification and risk assessment and such methods should be utilized.
Not withstanding the above, all objects and materials should be secured by lanyard to the PowerQuick Ascender, the operator, or
swing seat, or to a separate rope to effectively prevent them from falling.
14.2.
Electrical Hazards & Lockout/Tagout
The PowerQuick Powered Ascender should not be used where the user can receive electric shock from exposed live electrical
conductors. In the absence of specialized measures developed specifically for the purpose, the system is not considered suitable
for carrying out work on live electrical equipment due to the difficulty in providing immediate first aid and rescue in the event of
electric shock. Lockout/tagout procedures will be required whenever maintenance or servicing is initiated on the Ascender to
Summary of Contents for PQ 500-1
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