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EXISTING PARTIAL SINGLE LINE DIAGRAM <br />SHOWN FOR REFERENCE ONLY <br />6TH FLOOR <br />5TH FLOOR <br />(E)PLUG-IN BUS DUCT RISER <br />277/480V, 3Ø, 4W <br />7TH FLOOR <br />(E) <br />PNL <br />"6H"(E) <br />(E)400A <br />3P (C/B) <br />(E)(E) <br />(E) <br />PNL <br />"6A" <br />GENERAL NOTES: <br />1. ALL LUGS SHALL BE RATED FOR A MINIMUM 75°F. <br />2. ALL NEW CIRCUIT BREAKERS SHALL MATCH THE EXISTING TYPE AND HAVE THE HIGHEST A.I.C. RATING. <br />3. THE MAXIMUM PERMITTED CROSS-SECTION FILLS OF SEALS SHALL NOT EXCEED 25% OF THE <br />CROSS-SECTIONAL AREA OF A CONDUIT OF THE SAME TRADE SIZE UNLESS SPECIFICALLY APPROVED. <br />(501.15(C)(6)). <br />4. ALL SWITCHBOARDS AND PANELBOARDS SUPPLIED BY A FEEDER SHALL BE MARKED TO INDICATE THE <br />DEVICE OR EQUIPMENT WHERE THE POWER SUPPLY ORIGINATE. 2022 CEC ART. 408.4(B). <br />5. SWITCHBOARDS, PANELBOARDS, INDUSTRIAL CONTROL PANELS, AND MOTOR CONTROL CENTERS THAT <br />ARE IN OTHER THAN DWELLING OCCUPANCIES AND ARE LIKELY TO REQUIRE EXAMINATION, ADJUSTMENT, <br />SERVICING, OR MAINTENANCE WHILE ENERGIZED SHALL BE FIELD MARKED TO WARN QUALIFIED PERSONS <br />OF POTENTIAL ELECTRICAL ARC FLASH HAZARDS. THE MARKING SHALL BE LOCATED SO AS TO BE CLEARLY <br />VISIBLE TO QUALIFIED PERSONS BEFORE EXAMINATION, ADJUSTMENT, SERVICING, OR MAINTENANCE OF <br />THE EQUIPMENT. 2022 CEC ART. 110.16. <br />1 <br />Sheet Title <br />Sheet Number <br />Project Number <br />TOWER 1851 <br />1851 E. First <br />St. <br />Santa Ana, Ca. 92705 <br />DGC <br />EXPANSION <br />SUITE 640 <br />TENANT <br />PROJECT <br />REVISIONS <br />DESCRIPTION DATENO. <br />DATE <br />CHECKED <br />DRAWN <br />1316 W. Norwood Street <br />Rialto, CA 92377 <br />Tel. (562) 299-4490 <br />www.jps-electric.com <br />JPS ELECTRIC, INC. <br />These drawings and ideas are not to be <br />reproduced, in whole, or in part, without <br />the express written permission of <br />9/24/2025 <br />(E) <br />(E) <br />PNL <br />"6D" <br />NEW LOAD <br />NEW LOAD <br />(E) <br />PNL <br />"7H"(E) <br />(E)400A <br />3P (C/B) <br />(E) <br />PNL <br />"5H"(E) <br />(E)400A <br />3P (C/B) <br />E101 <br />SEE PANEL SCHEDULES <br />(E)XFMR"T6", 75KVA <br />480-120/208V, 3Ø, 4W <br />NEW LOAD