Exposed conductive parts, socket-outlets, luminaires, conductive supports and structural metalwork (including sheds permanently connected) are earthed; outbuildings are earthed individually or as separate MEN installations with rules for combined outbuildings; enclosures on unprotected consumer mains are earthed with capacity not less than the main neutral; continuity and connections are secure.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.