Ladders, life safety

Steel ladders with safety devices shall extend between horizontal levels and the shafts can serve as a work access to the tendon gallery during tendon installation. After tendon installation a removable structural steel floor at El 620.0 has been installed to provide access to the annulus. The annulus access can be used to bring in the tendon jacks during surveillance testing. The surveillance tests will be performed at one year intervals for the first three years of plant life and at five year intervals thereafter. The annulus access can also serve as the maintenance access for servicing various mechanical systems located in the annulus. 

Any device, other than a cage or well, designed to eliminate or reduce the possibility of falls while using a ladder and which may incorporate such features as life belts, friction brakes, and sliding attachments. See also Cage, Ladder Safety. 

Some organizations use a ladder program that rotates ladder use from month to month to relieve constant use. Ladders are inspected by safety personnel during the out-of-service time frame and repaired if required. Although this may extend the life of the ladder, the ladder must still be inspected daily prior to use, during use, and again afterward. During use, if any unserviceable condition appears, appropriate action must take place. 

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