Impact-Bull Fall Arrest Cushion System PAS59-2014 Testing
The Impact-Bull fall arrest system from Bull products is the most effective collective fall arrest system on the market. Best known in the industry as the lightest and easiest system to install it has revolutionised the fall arrest industry with a fall arrest height of 3.1m from finished floor level to working height.
The system which is filled with sealed for life air film absorbent material has been primarily developed for house building and can be used in timber framed developments, concrete structures and traditional brick built properties.
The system has undergone rigorous testing and has successfully passed the British PAS59;2014 accreditation at an incredible 2.5m from the top of the bag to working height.
Bull Products understand the importance of maintenance and servicing of life saving products therefore have a dedicated team of inspectors. In addition, we know how essential it is that long life products can be easily maintained, have replacement parts and can be refilled.
The impact Bull Fall Arrest cushion is environmentally friendly and can be fully recycled.
The Testing Procedure
Bull Products Ltd Impact-Bull Air Cushion System was tested to the requirements of PAS 59:2014 incorporating corrigendum No 1 (2015), hereafter referred to as PAS 59 .
The bags tested comprise of an outer woven polypropylene fabric, sealed with a continuous stitched seam and are completely filled with inflated ‘sealed for life’ air pockets.
The bags were Impact-Bull Air Cushion Fall Arrest Bags with nominal dimensions of 600mm wide x 600mm deep x 1920mm long (once filled). The bags were stacked in a single layer for these tests as shown in figure 1.
The tests were carried out according to PAS 59:2014 Annex A which specifies the requirements for filled collective fall arrest systems used to absorb kinetic energy of a falling person from a height. The deceleration was measured using a calibrated triaxle accelerometer.
The bags are intended for use in a constrained situation. They were positioned on a rigid concrete floor and were contained within a rigid wooden crib . A mass was allowed to free fall from a height of 2.5m (measured above the highest point of the bags) onto the bags, which represents a height of approximately 3.1m above ground level.
The resultant vertical deceleration generated during the impact was measured by the triaxle accelerometer attached to the top of the mass. A time/acceleration curve was recorded for each impact from which the maximum resultant deceleration was identified. Figure 2 shows the drop positions used in their test, one of which was within 140mm from an interconnection with an adjacent bag, as required by PAS 59.
The maximum deceleration measured for each drop is given in Table 1 Annex A shows the time-deceleration curves measured during the testing. Figure 3 shows the array of bags after an impact.
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