15 Amp Old Fuse Box

Cooper bussmann frn series brass 15 amp 250 volt fusetron time delay fuse.
15 amp old fuse box. Some homeowners go a step further and insert a metal object like a penny where the blown fuse once was. If you have an old fuse box with edison sockets switching to socket adapters and type s fuses makes the panel much safer. In old systems like that sometimes people interchange the fuses and fix 15 a fuse that protect inmersor heater to lighting circuit that is 6a so that is wrong change as you said is only for three bulbs downstairs. Early plug fuse designs allowed for indiscriminate interchanging of fuses regardless of proper amp ratings.
The most common protected branch circuit sizes are 15 amp awg 14 and 20 amp awg 12. Old wylex 5 amp wire fuse upgrade to mini trip switch 6 amp fuse. Replacing the fuse with something metal. However you ll also create a massive fire hazard.
A house with 60 amp service on the other hand almost always needs upgraded electrical service. The wires in that circuit are only rated for 15 amps not 20. Although plug fuses work well when properly sized building owners usually lack the knowledge to maintain the proper fuse sizing over time. Or r fuse blocks.
Type t time delay fuses shown above as a 15 amp fuse are designed to avoid blowing the fuse during the brief current draw surge that occurs when some motors first turn on. How to replace a blown fuse. A 15 amp type s fits only a 15 amp base adapter. By contrast a type t fuse can fit into any edison socket regardless of the circuit s amperage.
And in some but not many older houses you ll find a 100 or 150 amp fuse box with a dozen to 20 or more individual circuits each protected by a 15 or 20 amp fuse. 15 amp fuse in fuse box. If you replace a 15 amp fuse with a 20 amp fuse or larger your fuse may stop blowing.