Experts speak

Editorial Realpower Magazine


Fall Arrest vs. Work Restraint? 

Safety Access Systems when Working on Top of the Nacelle 

Although advances are being made in condition monitoring of wind turbines, we are not yet in a position where it is possible to eliminate access to wind turbines for maintenance. Some maintenance tasks require workers to access the roof of the nacelle.

These tasks involve the worker moving several meters from the access hatch to another part of the nacelle. Current work systems comprise of either galvanized steel rail, which may or may not comply with standards, or a series of single fixed anchor points.

Both systems force the worker to ‘leap frog’ lanyards in order to move across the roof, exposing the worker to an open edge where a fall risk exists. As the anchor points are located at foot level, the worker is exposed to a fall factor 2 (FF2).

AlthoughFall Protection PPE is designed to reduce fall forces to a safe level theworker can still receive traumatic injuries related to impact against the structure, received during the fall. The worker will then be in a suspended position and require rescue.

The Miller Soll GlideLoc® and Soll MultiRail™ horizontal rail solutions are designed so that the worker can carry out tasks in work restraint. Workers connect to the system and travel about the roof without the need to disconnect lanyards. The worker is prevented from reaching open edges by the length of the restraint lanyard, thereby eliminating the risk of a fall.

The Miller Soll GlideLoc® and Soll MultiRail™ horizontal rail solutions can be engineered to fit most wind turbine designs and certified to meet European, national and international standards for the provision of work restraint, fall arrest ,rescue and evacuation systems.

Eliminate worker exposure to falls from height on the nacelle roof. Install Miller Horizontal Rail Fall Protection Solutions today!