Final answer:
The statement is true; opening the cutout is the first step when replacing a blown fuse link to ensure the safety of the person doing the replacement.
Step-by-step explanation:
The statement is true. The first procedure in replacing a blown fuse link in an open-type cutout is indeed to open the cutout. This is critically important to ensure the safety of the person performing the replacement by cutting off the electrical current flowing through the cutout. Once the cutout is open and it is verified that there is no voltage present, only then should the old fuse link be removed and a new one be installed. It's imperative to follow proper safety protocols when dealing with electrical components to prevent accidental electrocution or other electrical injuries.