High Voltage Lamps

As a Plant Engineer I had responsibility for all power distribution within a large manufacturing plant. There were 52 - 5,000 volt sub-stations within the facility (yes, 52/ 4160 volts to be exact). It was not uncommon to have a breaker fail or a transformer failure. 
These lamps were made from two of the fuses used in those transformers or in the transmission wiring. The double-fuse is a single pole fuse not two fuses. The single fuse is a pole-switch fuse. Notice the pull-ring for a hot stick. Similar to a pole switch used on the wiring you can see in a neighborhood. These are filled with sand and are very heavy. The fuse link is inside the sand. The sand absorbs the arc energy when the fuse blows.
I thought they looked cool so I made lamps out of a couple. Most people have not seen these types of fuses. They make good conversation pieces.