Where you work,
How do you make sure that the Circuit-Breaker, that you have just isolated or the HRC fuse is not replaced on you?.
With using HRC fuses, there is no real way (I feel), apart from taking the fuse carrier AND the fuselink with you, if you are working at a site, remote from the supplying panel.
How would you normally lock-out a proprietary Circuit Breaker?.
Any thoughts on this subject, would be greatly encouraged.