yes, but if you want to take a spur from a spur as you describe, you need an FCU BEFORE the first socket.
Effectively you'd need two FCU's, one between the ring and the first socket, with a 13A fuse and preferably no switch, and then a second one in the spur going to the fire with a fuse suitable for the fire, and a switch if desired.
So you'd end up with:
[code:1]
RING ------- FCU -- Socket -- Switched FCU -- Fire
or
RING ------- FCU -- Socket
`-------------- Switched FCU -- Fire
[/code:1]
depending what was most convenient to wire it up.
Effectively you'd need two FCU's, one between the ring and the first socket, with a 13A fuse and preferably no switch, and then a second one in the spur going to the fire with a fuse suitable for the fire, and a switch if desired.
So you'd end up with:
[code:1]
RING ------- FCU -- Socket -- Switched FCU -- Fire
or
RING ------- FCU -- Socket
`-------------- Switched FCU -- Fire
[/code:1]
depending what was most convenient to wire it up.