Equipment is selected and installed to perform its functions and suit its conditions (AS 60529 IP codes; purpose-made anti-condensation drains, not drilled holes; unmarked accessories are weather-protected only within the soffit zone), remotely switched equipment is isolated before work, and equipment must not suffer adverse effects or interference; Amendment 1 added requirements on air extraction systems.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.