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SUBSTATIONS 11-1 AND 11-2 SECTION 26 11 16 <br /> PROJECT#22349762 SECONDARY UNIT SUBSTATIONS <br /> BOEING- EVERETT SITE SERVICES <br /> K. Provide safety signs per current regulatory requirements, including the following at <br /> minimum. <br /> 1. High voltage section shall be marked with a sign at all the access points that a <br /> hazard exists using the words <br /> WARNING: 12,470 VOLTS <br /> LOCK-OUT ALL SOURCES INCLUDING <br /> THE SECONDARY MAIN,TEST AND GROUND-OUT <br /> BEFORE WORKING INSIDE <br /> 2. For tie breaker and compartments which contain separate sources of power. <br /> WARNING: 2400 VOLTS <br /> THIS CUBICLE CONTAINS VOLTAGE FROM <br /> MULTIPLE SOURCES <br /> LOCK OUT ALL SOURCES, <br /> TEST AND GROUND OUT BEFORE WORKING INSIDE <br /> 3. Provide signs on the rear wiring compartment of all feeder breakers using the <br /> wording. <br /> WARNING: 2400 VOLTS <br /> THE CABLE TERMINALS MAY BE ENERGIZED <br /> LOCKOUT SOURCE,TEST AND GROUND OUT <br /> BEFORE WORKING INSIDE <br /> 2.02 PRIMARY SWITCH <br /> A. General Requirements: <br /> 1. Dual three pole, single throw, dead front, metal enclosed, with manual stored energy <br /> operator, with fuses mounted on a single frame,complying with IEEE C37.20.3. <br /> 2. Key interlocking shall be provided to accomplish the following: <br /> a. Inhibit both switches from being closed simultaneously. <br /> b. Guard both switch front access doors from being opened when either duplex <br /> switch is closed, or the secondary main/isolation is closed. <br /> c. Inhibit opening and closing of either primary switch with the secondary <br /> main/isolation switch closed. <br /> 3. Phase barriers: Located between blades and fuses of each phase, designed for <br /> easy removal, allows visual inspection of switch components when barrier is in place. <br /> 4. Accessory Set: Tools and miscellaneous items required for interrupter switchgear <br /> test, inspection, maintenance, and operation. Include fuse-handling tool as <br /> recommended by switchgear manufacturer. <br /> 6. Continuous-Current Rating: 600 A. Switch Interrupting Rating: 600A <br /> 7. Minimum No Load Duty (Operations): 500A <br /> 8. Short-Circuit Rating: <br /> a. Short-time momentary asymmetrical fault rating of 61 kA. <br /> b. 2-second symmetrical rating of 38-kA RMS. <br /> 2611 16 - 6 <br /> (07/15/18) <br />