CSA HPIT 2-2017 Dispensing systems and components for fueling hydrogen powered industrial trucks.
Circuit — Extra low voltage (ELV) — a secondary circuit with voltages between any two conductors of the circuit, and between any one such conductor and earth not exceeding 42.4 V peak, or 60 V DC, under normal operating conditions, which is separated from hazardous voltage by basic insulation, and which neither meets all of the requirements for an SELV circuit nor meets all of the requirements for a limited current circuit. Limited current circuit — a circuit that is so designed and protected that, under both normal operating conditions and single fault conditions, the current that can be drawn is not hazardous. Safety extra low voltage (SELV) — a secondary circuit, that is so designed and protected, that under normal operating conditions and single-fault conditions, its voltages do not exceed 42.4 V peak or 60 V dc. Container — a storage vessel that contains gaseous hydrogen within the HPIT vehicle as defined in CSA HPIT 1: Type 1 container — a CSA HPIT 1 metal container. Type 2 container — a CSA HPIT 1 hoop-wrapped container with resin impregnated continuous filament with a metal liner. Type 3 container — a CSA HPIT 1 container that is fully wrapped with resin impregnated continuous filament with a metal liner. Type 4 container — a CSA HPIT 1 container that is fully wrapped with resin impregnated continuous filament with a non-metallic liner. Dispenser — equipment that contains hydrogen piping and controls the transfer of gaseous hydrogen from a bulk storage system to a target vehicle. Drive-off — the event of driving away from the dispenser while the refueling nozzle is still attached to the vehicle. This can be simulated by exerting a force on the dispenser equivalent to the force needed to activate the breakaway device on the refueling hose. Emergency stop device — a device or system of devices that immediately stops the operation of equipment when manually activated. Also known as an “E-stop button.” Filling methods — Fill to service pressure — a dispenser that fills to service pressure.CSA HPIT 2 pdf download.