Competency A1: Install Medical Gas Systems
Definitions
- Control equipment — components necessary to maintain the medical gas pipeline system within the specified operating parameters.
- DISS — Diameter Index Safety System is a threaded gas-specific type of medical gas outlet connection
- Gas-specific connector — a connector with dimensional characteristics that prevent connections between different gas services.
- Line pressure regulator — a pressure regulator intended to supply the nominal distribution pressure to the terminal units.
- Nominal distribution pressure — the pressure that the medical gas pipeline system is intended to deliver to the terminal units.
- Pipeline distribution system — the portion of a medical gas, vacuum, medical support gas, or AGSS located from and including the main supply shut off valve to (and including all terminal units), junction points, or demarcation points.
- Pressure relief device (PRD) — a fitting installed on pressure equipment designed to provide primary protection from overpressurization. PRDs include both reclosing devices (e.g., safety valves, relief valves, safety relief valves) and non-reclosing devices (including rupture discs and fusible plugs).
- Primary source — the portion of a supply system that is the first to be drawn on to supply the pipeline distribution system.
- Reserve source — the portion of the supply system that supplies the complete pipeline distribution system, or a portion of it, in the event of failure or exhaustion of both the primary and secondary sources of supply.
- Secondary source — the portion of the supply system that supplies the pipeline distribution system in the event of failure or exhaustion of the primary source of supply.