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V <br />„. <br />I NAC CIRCUIT VOLTAGE DROP CALCULATION (WORST -CASE) <br />I. <br />JOB NAME: <br />LOCATION nac 1 or 2 of Audio 1 <br />CKT If <br />• Select Panel Type From Drop -Dawn Voltage <br />wires., <br />On, ols <br />NFPA Voltage Drop Ialcula - Formula = (Device current <br />x distance x 21.8) / (circular mist. Mmaimum Voltage Drop Not To Exceed 1.8 Vohs. F 24 <br />14 <br />4110 <br />• 1st device distance measured to device most remo[e <br />from paneypower supply <br />chooee wire size from dmpaown lint <br />DEVICE <br />- -- <br />MOST <br />ENTER THE <br />MOST REMOTE DEVICE IN THE 1st BOX AND WORK YOUR WAY BACKWARDS TO THE DEVICE NEAREST TO THE FACP. THE DEVICE NEAREST TO THE FACP SHOULD BE THE LAST DEVICE ENTERED ON THE <br />REMOTE <br />FROM <br />CHART. <br />FACPIBPS <br />Device It, <br />1st <br />2nd <br />I 3rd <br />4M <br />5ih <br />eth <br />7th <br />I <br />9ih <br />10th <br />11th <br />12N <br />13th <br />1481 <br />15m <br />18th <br />17th <br />18111 <br />19th <br />20th <br />Enter Device Name- <br />P2vvL <br />P2WL <br />Prvri <br />TOTAL <br />ISO <br />FOOTAGE <br />Enter Alarm current . <br />0.121 <br />0.121 <br />0.121 <br />TOTAL <br />0.363 <br />(16-33 Voles, FWR/24 VDC) <br />AMPS <br />• Enter Distance (it) to most <br />Remote Device <br />150 <br />TOTAL CKT <br />0,286 <br />(numerical <br />V.D. <br />Amps @ Device <br />0.363 <br />0.242 <br />0.121 <br />Y'oTFGE <br />1.19°L <br />Voltage drop'. <br />0286 <br />none <br />none <br />none <br />none <br />none <br />none <br />none <br />none <br />none <br />none <br />none <br />none <br />hone <br />none <br />none <br />none <br />none <br />none <br />none <br />--Style of Circuit.( drop. <br />Class B <br />/Style Y <br />down list) <br />•• Distance Entered For Most Remote (1st) Device Will Be Doubled In Total Footage Box <br />If Using Claaa A / Style Z. <br />NOTE: OHMS/1000 FT. BASED ON NEC 1999 EDITION, CHAPTER 9, TABLE 8. <br />VALUE USE IS FOR UNCOATED COPPER. <br />