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2017-02-23 17:33:51 | THIS PLAN WAS REVIEWED AND FAILED BY PETER LEDUC, FIRE |
| MARSHAL, WITH THE FOLLOWING COMMENTS: |
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| 1) THE CONSTRUCTION AND INSPECTION OF THE WATER COOLING |
| TOWER SHALL COMPLY WITH NFPA 214, STANDARD ON |
| WATER-COOLING TOWERS, 2011 EDITION. |
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| THERE IS INSUFFICIENT DETAIL PROVIDED TO COMPLETE A |
| REVIEW. |
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| 2) |
| CHAPTER 4 LOCATION OF WATER-COOLING TOWERS |
| 4.1 CONSTRUCTION MATERIALS OF WATER-COOLING TOWERS. |
| 4.1.1 WHERE THE COOLING TOWER?S STRUCTURE, FAN, |
| DISTRIBUTION SYSTEM, LOUVERS, AND FILL AND DRIFT |
| ELIMINATOR MATERIALS ARE ALL OF NONCOMBUSTIBLE |
| MATERIALS, A FIRE PROTECTION SYSTEM SHALL NOT BE |
| REQUIRED. |
| 4.1.2 IF ANY OF THE CONSTRUCTION MATERIALS ARE |
| COMBUSTIBLE AND THE FACTORS IN SECTION 4.2 NECESSITATE |
| IT, FIRE PROTECTION SHALL BE PROVIDED IN ACCORDANCE |
| WITH CHAPTER 5, AND TOWERS SHALL BE LOCATED IN |
| ACCORDANCE WITH CHAPTER 4. |
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| 3) |
| 4.8 SCREENING. |
| 4.8.1 OPEN AREAS OR SPACE BETWEEN A COMBUSTIBLE |
| COLD-WATER BASIN AND THE GROUND OR ROOF OF A BUILDING |
| UPON WHICH IT IS LOCATED SHALL BE EFFECTIVELY SCREENED |
| TO PREVENT THE ACCUMULATION OF WASTE COMBUSTIBLE |
| MATERIAL UNDER THE TOWER AND TO |
| PREVENT THE USE OF SUCH AREAS OR SPACE UNDER THE TOWER |
| FOR THE STORAGE OF COMBUSTIBLE MATERIAL. |
| 4.8.2 FIRE PROTECTION SHALL BE PERMITTED TO BE |
| INSTALLED IN LIEU OF SCREENING. |
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| 4) |
| 5.2.9 PROTECTION FOR FAN DRIVE MOTOR. |
| 5.2.9.1 A SPRINKLER OR SPRAY NOZZLE SHALL BE PROVIDED |
| OVER EACH FAN DRIVE MOTOR WHERE THE MOTOR IS LOCATED SO |
| THAT IT IS NOT WITHIN THE PROTECTED AREA OF THE TOWER. |
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| 5) |
| 5.2.10 EXPOSURE PROTECTION. |
| 5.2.10.1 WHERE ANY COMBUSTIBLE EXTERIOR SURFACES OF A |
| TOWER, INCLUDING THE FAN DECK AND DISTRIBUTION BASINS, |
| ARE LESS THAN 100 FT (30.5 M) FROM SIGNIFICANT |
| CONCENTRATIONS OF COMBUSTIBLES SUCH AS STRUCTURES OR |
| PILED MATERIAL, THE COMBUSTIBLE EXPOSED SURFACES OF THE |
| TOWER SHALL BE PROTECTED BY AN AUTOMATIC WATER SPRAY |
| SYSTEM. |
| 5.2.10.2 SYSTEMS FOR EXTERIOR PROTECTION SHALL BE |
| DESIGNED WITH THE SAME ATTENTION AND CARE AS INTERIOR |
| SYSTEMS. |
| 5.2.10.2.1 PIPE SIZING SHALL BE BASED ON HYDRAULIC |
| CALCULATIONS. |
| 5.2.10.2.2 WATER SUPPLY AND DISCHARGE RATE SHALL BE |
| BASED ON A MINIMUM 0.15 GPM/FT2 (6.11 MM/MIN) FOR ALL |
| PROTECTED SURFACES |
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| 6) |
| 5.7* LIGHTNING PROTECTION. LIGHTNING PROTECTION, WHERE |
| PROVIDED, SHALL BE INSTALLED IN ACCORDANCE WITH THE |
| PROVISIONS OF NFPA 780. |
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| 7) |
| CHAPTER 6 ELECTRICAL EQUIPMENT AND WIRING |
| 6.1 INSTALLATION. INSTALLATION OF ALL ELECTRICAL |
| EQUIPMENT AND WIRING PERTAINING TO WATER-COOLING TOWERS |
| SHALL BE IN ACCORDANCE WITH NFPA 70. |
| 6.2* OVERCURRENT PROTECTION. ELECTRIC MOTORS THAT ARE |
| DRIVING FANS SHALL BE PROVIDED WITH OVERCURRENT |
| PROTECTION DEVICES AS MANDATED BY NFPA 70. |
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| 8) |
| 6.3 STOP FAN. A REMOTE FAN MOTOR SWITCH SHALL BE |
| PROVIDED TOSTOP THE FAN IN CASE OF FIRE. |
| 6.4 INTERLOCK. WHEN A FIRE PROTECTION SYSTEM IS |
| INSTALLED, PROVISIONS SHALL BE MADE TO INTERLOCK THE |
| FAN MOTORS WITH THE FIRE PROTECTION SYSTEM AS SET FORTH |
| IN CHAPTER 5. |
| 6.5 VIBRATION-CONTROLLED SWITCH. A LISTED, AUTOMATIC, |
| VIBRATIONCONTROLLED SWITCH SHALL BE PROVIDED TO |
| AUTOMATICALLY SHUT DOWN FAN MOTORS. |
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| 9) |
| 8.7 ACCESS. |
| 8.7.1 ACCESS TO THE TOPS OF WATER-COOLING TOWERS FOR |
| FIRE FIGHTING AND MAINTENANCE SHALL BE PROVIDED BY AN |
| APPROVED STAIRWAY OR LADDER. |
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| 10) |
| WHEN RESUBMITTING, PLEASE PROVIDE PLAN SHEET REVISION |
| CLOUDS OR NUMBERED NARRATIVE RESPONSES TO THE ABOVE. |
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| 11) |
| ADDITIONAL COMMENTS MAY BE PROVIDED ON THE RE-SUBMITTAL |
| OF THE ABOVE. |
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| PLEASE ENSURE COMPLIANCE, MAKE ANY NECESSARY CHANGES |
| AND PROVIDE AN APPLICABLE NOTE OF COMPLAINCE. |
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| PETER LEDUC |
| FIRE MARSHAL |
| 561-804-4709 |
| [email protected] |
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