| 2019-06-10 10:16:50 | THESE PROVISO AND COMMENTS WILL BE VERIFIED AND |
| | CONFIRMED AT THE TIME OF FIRE INSPECTION. FAILURE TO |
| | FOLLOW THESE PROVISO WILL RESULT IN A FAILED |
| | INSPECTION. |
| | |
| | PLEASE CONSIDER THE FOLLOWING AS PROVISO |
| | RELOCATED DROPS MAY NOT BE ISOLATED; HOWEVER, THE FLOOR |
| | AREA MAY BE TESTED AT 200PSI FOR 2 HOURS. |
| | IF NOT: |
| | TEST AT WORKING PRESSURE FOR 2 HOURS PER NFPA 13 |
| | USE FIRE PUMP PRESSURE FOR WORKING PRESSURE |
| | CALCULATIONS |
| | |
| | 3.3.23 SYSTEM WORKING PRESSURE. THE MAXIMUM ANTICIPATED |
| | STATIC (NONFLOWING) OR FLOWING PRESSURE APPLIED TO |
| | SPRINKLER |
| | SYSTEM COMPONENTS EXCLUSIVE OF SURGE PRESSURES AND |
| | EXCLUSIVE |
| | OF PRESSURE FROM THE FIRE DEPARTMENT CONNECTION. |
| | |
| | 25.2 ACCEPTANCE REQUIREMENTS. |
| | 25.2.1* HYDROSTATIC TESTS. |
| | 25.2.1.1 UNLESS PERMITTED BY 25.2.1.2 THROUGH 25.2.1.8, |
| | ALL |
| | PIPING AND ATTACHED APPURTENANCES SUBJECTED TO SYSTEM |
| | WORKING |
| | PRESSURE SHALL BE HYDROSTATICALLY TESTED AT 200 PSI |
| | (13.8 BAR) |
| | AND SHALL MAINTAIN THAT PRESSURE WITHOUT LOSS FOR 2 |
| | HOURS. |
| | 25.2.1.2 PORTIONS OF SYSTEMS NORMALLY SUBJECTED TO |
| | SYSTEM |
| | WORKING PRESSURES IN EXCESS OF 150 PSI (10.4 BAR) SHALL |
| | BE |
| | TESTED AS DESCRIBED IN 25.2.1.1, AT A PRESSURE OF 50 |
| | PSI (3.5 BAR) |
| | IN EXCESS OF SYSTEM WORKING PRESSURE. |
| | 25.2.1.3 WHERE COLD WEATHER WILL NOT PERMIT TESTING |
| | WITH WATER, |
| | AN INTERIM AIR TEST SHALL BE PERMITTED TO BE CONDUCTED |
| | AS |
| | DESCRIBED IN 25.2.2. THIS PROVISION SHALL NOT REMOVE OR |
| | REPLACE |
| | THE REQUIREMENT FOR CONDUCTING THE HYDROSTATIC TEST AS |
| | DESCRIBED |
| | IN 25.2.1.1. |
| | 25.2.1.4 MODIFICATIONS AFFECTING 20 OR FEWER SPRINKLERS |
| | SHALL |
| | NOT REQUIRE TESTING IN EXCESS OF SYSTEM WORKING |
| | PRESSURE. |
| | 25.2.1.5 WHERE ADDITION OR MODIFICATION IS MADE TO AN |
| | EXISTING |
| | SYSTEM AFFECTING MORE THAN 20 SPRINKLERS, THE NEW |
| | PORTION |
| | SHALL BE ISOLATED AND TESTED AT NOT LESS THAN 200 PSI |
| | (13.8 BAR) |
| | FOR 2 HOURS. |
| | 25.2.1.6 MODIFICATIONS THAT CANNOT BE ISOLATED, SUCH AS |
| | RELOCATED |
| | DROPS, SHALL NOT REQUIRE TESTING IN EXCESS OF SYSTEM |
| | WORKING |
| | PRESSURE. |
| | 25.2.1.7 LOSS SHALL BE DETERMINED BY A DROP IN GAUGE |
| | PRESSURE |
| | OR VISUAL LEAKAGE. |
| | 25.2.1.8* THE TEST PRESSURE SHALL BE READ FROM A GAUGE |
| | LOCATED |
| | AT THE LOW ELEVATION POINT OF THE SYSTEM OR PORTION |
| | BEING |
| | TESTED. THE PRESSURES IN PIPING AT HIGHER ELEVATIONS |
| | SHALL BE |
| | PERMITTED TO BE LESS THAN 200 PSI (13.8 BAR) WHEN |
| | ACCOUNTING |
| | FOR ELEVATION LOSSES. SYSTEMS OR PORTIONS OF SYSTEMS |
| | THAT CAN BE |
| | ISOLATED SHALL BE PERMITTED TO BE TESTED SEPARATELY. |
| | |
