What is the gland made of? It does not look like brass. If the sheath is the CPC, it has been lost so that's C2 plain and simple.
The risk of conductors becoming detached is high. If that is on the load side of the box, and everything came out, no problem; but if one of them is the CPC, that's back to C2. If the conductors are TPN, the consequences of one becoming detached depends upon what is at the other end.
What is the gland made of? It does not look like brass. If the sheath is the CPC, it has been lost so that's C2 plain and simple.
The risk of conductors becoming detached is high. If that is on the load side of the box, and everything came out, no problem; but if one of them is the CPC, that's back to C2. If the conductors are TPN, the consequences of one becoming detached depends upon what is at the other end.