3003 W CASINO RD 2018 BLDG 40-23 Plans 2022-12-06 (2)

SUBSTATIONS 11-1 AND 11-2 SECTION 26 11 16 PROJECT#22349762 SECONDARY UNIT SUBSTATIONS BOEING - EVERETT SITE SERVICES e. Impedance and load loss at rated current at the nominal tap. f. Applied potential test. g. Induced potential test. h. Sound level test. 2. Provide test reports for prototype units for short circuit and temperature rise tests. 2.04 MEDIUM VOLTAGE SWITCHGEAR A. General Requirements and Ratings: 1. Metal enclosed switchgear; draw-out type rated 5KV, 3-phase, 3-wire solidly grounded system 60Hz system. 2. All breakers and buses shall be fully rated for use on a system capable of delivering 36,000 amperes symmetrical at 4.76KV RMS 3. Switchgear configuration shall be double-ended with two main breakers (1200A) and one tie breaker (1200A). Two branch breakers in bottom sections (1200A) one spare, and one fully equipped provision (1200A). Relays on all breakers shall be Siemens 7SJ804; Digital Time Overcurrent Relay. The switchgear shall be UL listed. 4. Provide a barrier system that fully isolates the main and vertical bus bars from the cable area so that no live connections are accessible in the rear of each section except the breaker load side connections. Provide accessibility to bus joints by removable non-ventilated covers of 11 gage steel or 1/4" inch polyester. Provide full depth 11 gage steel barriers to isolate the cable area of each vertical section from adjacent vertical sections. 5. Breakers shall be non-fused draw-out type, with mechanism to hold the breaker element rigidly in fully connected, test, and disconnected positions. Provide fully self- contained draw-out mechanism and permanent extendible rails in each compartment. 6. Provide interlocks to prevent moving the breaker from above positions unless the breaker is open and to prevent closing of the breaker between any of these positions. Provide interlocks to prevent closing of the breaker in any positions other than connect or test. Provide padlocking provision on each breaker and each cell door. 7. All breakers shall be electrically and manually operated (charge, close, and trip). 8. Each breaker element will consist of a three-pole electrically and mechanically trip free power circuit breaker with self-aligning primary and secondary disconnecting contacts. Replaceable vacuum bottles, manual and electrical stored-energy closing mechanism, position indicator, and equipped for mounting on the draw-out mechanism in the circuit breaker compartment. Provide auxiliary switch on each circuit breaker with two (2) N.O. and two (2) N.C. contacts. Provide operations counter on each circuit breaker. Provide secondary disconnecting contacts and route auxiliary switch and shunt trip wiring to terminal blocks. All cell control connections shall be via self-aligning secondary disconnecting contacts. 9. Electrical and manual closing mechanisms shall employ the stored energy principle by imposing and every storage spring between the operator and the circuit breaker contacts. This spring provides constant closing speed not influenced by the operator or control power voltage level. 10. Provide front mounted handles for charging the closing spring of breakers. Closing the breakers shall be accomplished by operating an electrical switch or depressing a mechanical close button on the front of the circuit breaker. Operating of the circuit breaker shall be accomplished by operating an electrical switch or depressing a 26 11 16- 10 (07/15/18)