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flM PEI/RP1200-17 <br /> 11. EMERGENCY STOP <br /> WARNING: FIRE AND SPILL HAZARD <br /> • "Stop" buttons on the point-of-sale con- <br /> EMERGENCY . <br /> sole do not shut off all power to the fuel <br /> dispensing system. <br /> • In an emergency, activate the dediSTOP <br /> - <br /> cated and stand-alone emergency stop <br /> switch/button. <br /> SWITCHi <br /> 11.1 General. The emergency stop(E-stop)switch also j <br /> is called the emergency shutoff switch. When activated, <br /> the switch disconnects power to: <br /> • all dispensing devices on all islands; <br /> • all submersible pumps for all fuel grades that serve "crgic Poxreq <br /> ascwvN[cr <br /> dispensing devices; <br /> • all power, control and signal circuits associated with <br /> the dispensing devices and the submersible pumps; <br /> • all other non-intrinsically safe electrical equipment <br /> in the classified areas surrounding fuel dispensing <br /> devices. <br /> If more than one E-stop switch is present,test each switch _ <br /> separately for proper operation. <br /> NOTE:Intrinsically safe tank system monitor- FIGURE 11-1. The E stop should be clearly labeled and <br /> ing electrical equipment should not be dis- located where it is easily accessible. <br /> connected by the E-stop. <br /> 11.5 Test Equipment. None needed. Observations are <br /> 11.2 Purpose. This test is performed to determine made as to whether the equipment has power or does not <br /> whether every E-stop switch that is installed at a facility have power. <br /> is functioning as designed. 11.6 Test Procedure. <br /> 11.3 Description of Test. Each E-stop switch is acti- 1.Ensure that the system is fully powered in normal <br /> vated and the entire fueling system is checked to verify operating condition. <br /> that power has been disconnected to: <br /> 2.Depress the E-stop switch. <br /> • all dispensing devices on all islands; <br /> 3.Ensure that power has been disconnected from: <br /> • all submersible pumps for all fuel grades that serve <br /> all dispensing devices on all islands; <br /> dispensing devices; <br /> • all power, control and signal circuits associated with • all submersible pumps for all fuel grades that serve <br /> the dispensing devices and the submersible pumps; dispensing devices; <br /> • all other non-intrinsically safe electrical equipment • all power,control and signal circuits associated with <br /> in the classified areas surrounding fuel dispensing the dispensing devices and the submersible pumps; <br /> devices. • all other non-intrinsically safe electrical equipment <br /> in the classified areas surrounding fuel dispensing <br /> 11.4 Preparation. Ensure that all customer fueling devices. <br /> operations have been discontinued. <br /> 0 <br /> pei.org <br />