Question from a non-electrician, so excuse my ignorance. The main fuse holder in my house has just been updated to a new one, owing to my existing one being about fifty years old. How is this done with the incoming cable still live?
The procedure in holes used to require two out of three items from: insulated gloves, rubber mat, insulated waterproof boots. IIRC the mat counted even if the hole was very wet. The hole needs to big enough to be able to safely avoid inadvertent body contact. These days I think any live exposure requires an appropriate visor too and flameproof overalls. Thousands of these operations are done each day without incident and its almost exclusively short cuts and unapproved practices that lead to incidents. There are still plenty of things that have to be done dead.
The procedure in holes used to require two out of three items from: insulated gloves, rubber mat, insulated waterproof boots. IIRC the mat counted even if the hole was very wet. The hole needs to big enough to be able to safely avoid inadvertent body contact. These days I think any live exposure requires an appropriate visor too and flameproof overalls. Thousands of these operations are done each day without incident and its almost exclusively short cuts and unapproved practices that lead to incidents. There are still plenty of things that have to be done dead.
