fuse wire 
noun [mass noun]
Thin wire used in an electric fuse.Look at it closely and you'll see stems as thin as fuse wire supporting dazzling-white, tiny blooms like a mass of twisted fairy lights....
- Just a few wispy pieces that looked as if they had been fashioned from 13 amp fuse wire and some old ‘Rolo’ toffee wrappers.
- Everything will be in the proper Christmas colours of red, green and gold, and at least half the decorations will be edible little home bakes that no one is allowed to eat in case they swallow a loop of fuse wire.