connecting 230V cable to old DB - requirements

[mt8383]

Hi all,
as in the picture, when connecting a 230V cable to a db like this, is there a legal requirement to install external RCD unit?
Also, if the cable was installed approx. 20 years ago, is there a legal requirement to upgrade / install external RCD unit on the cable?
Last question, looking at the close up of the removed fuse slot, is the cable fused correctly?

We're talking industrial setting here of course. Power generation.

Thanks!

 

[Moley]

Ah, Eggborough. That brings back memories. Mainly happy apart from working on the 'valves board' and when they accidentaly almost fried one of the guys I worked with. The Polish girl at the gatehouse was always happy and friendly.