The holder of GBS L-1 certificate are qualified to perform blade service inspection on all types of WTG blades, according to Global Blade Service Standard.
The holder has knowledge to:
Describe the general construction of WTG blades
Describe health risk involved when handling polyester, epoxy and isocyanates
Use correct terms for blade communication
Recognize different types of defects and damages
Assess and categorize defects and damages
And have competences to:
Carry out General Visual Inspection, from ground level
Carry out Close Visual inspection, use of hands, tape measures, photo cards, off rope or crane
Carry out Detailed Visual Inspection. Use of tools to further inspection of damage by sanding away damaged paint/gelcoat, and visually inspect laminate, and bonded joints
Carry out minor cosmetic repair of surface coatings