No service head fuse?

[1Justin]

So I was at a 2 bed flat today, ground floor on 4 storey block. 3 years old flats. The supply head holds a red fuse holder reading " solid link, do not fuse". TN-S and the CU is just off the bottom of this shot below the 100A isolator. ~75 cm tails.
"Fuse" is all crimp sealed, I didn't pull it, original DNO work. What's going on here then?

 

[JOURNEYMAN]

Agreed. Looks like a red link fed by a concentric cable (with black boot) which may well have fuse protection up stream often at the source of the riser. Provides a local isolation point for meter changes.

 

[Simonslimline]

Looks like split concentric.

Agree, definitely split con.

 

[Squid]

I had this in my flat renovation, the meter was fed by a Pyro and wasn't fused at the meter in the end traced the Pyro back to a cupboard in the downstairs flat where the supply was split and fused. The electrician ran a new armoured in from the flat and terminated/fused it correctly.

 

[buzzlightyear]

did a job last year, 60amp fuse pyro in the flat feed from down stairs utility cupboard from 100amp three phase fuse.