Fire Protection Coffee Break Training August 2016

Transcription

1 Fire Protection Coffee Break Training August 2016

2 Agenda Introduction - Phelan NFPA 13 versus NFPA 13R systems for Residential Occupancies - Homa NFPA 72 Record of Completion - Homa Questions and Answers

3 Overview How did you get to NFPA standards? Ordinances IBC & IFC Differences between the residential applications within NFPA 13 and NFPA 13R Densities Sprinklers in a design area Outside the dwelling unit. Omissions of sprinklers NFPA 72 Completion Documents Completion of documents and location Intelligibility testing

4 Ordinances Dmgov.org, municipal code on the bottom right hand corner. This redirects to d=muco_ch46fiprpr Chapter 46: Fire Prevention and Protection ARTICLE III. CODE Sec Adoption of the 2012 Edition of International Fire Code.

5 International Codes International Building and Fire Code 2012 Adoption of the 2015 International Codes in process expected effective date of January 1, 2017 in Des Moines. Chapter 9 of both IFC and IBC contain Fire Protection requirements based upon occupancy including sprinkler requirements.

6 International Codes IBC International Building Code (Table ) Section 102.4, states reference codes, standards, and code thereof is an enforceable extension. IBC references: Section 420; Groups I-1 R-1 R-2 R-3 Section 508; Mixed Use & Occupancy Section 509; Incidental Use

7 International Codes IFC International Fire Code (Table ) To determine which standard to use consult the International Fire Code, 903 which addresses Automatic Sprinkler Systems When required by code, buildings or portions thereof shall be equipped with an automatic sprinkler system, sprinklers shall be installed throughout in accordance with NFPA 13 except in (Exempt Locations.)

8 IFC- NFPA 13R NFPA 13R sprinkler systems shall be permitted to be installed throughout Group R occupancies up to and including four stories in height. If Type V construction is used, sprinklers shall be provided for exterior balconies and decks. This is to insure life safety. If a mixed occupancy building contains a Group R occupancy but one of the other occupancies requires a sprinkler system throughout the building in accordance to NFPA 13, NFPA 13R would not be allowed.

9 IFC- NFPA 13D NFPA 13D sprinkler systems shall be permitted in one or two family dwellings, also in group R-3 and R-4 living facilities and townhomes. Prevents flashover in the room of origin, and improves the chance for occupants to escape or be evacuated.

10 IFC Sprinkler Requirements for Residential Occupancies Sprinklers required in any building that contains a Group R fire area. Hotels Apartment Buildings Group homes Dormitories

11 NFPA Standards The 2012 IBC and IFC reference the 2010 versions of NFPA 13 and 13R NFPA 13 Standard for the Installation of Sprinkler Systems, addresses both property protection and life safety. NFPA 13 permits residential sprinklers in high rise apartments. NFPA 13R Standard for the Installation of Sprinkler Systems in Residential Occupancies up to and Including Four Stories in Height (limit 60 ) Address life safety concerns in residential occupancies.

12 NFPA 13 Vs. 13R NFPA 13R applications should consist of dwelling units, multi-family dwellings or dormitories, in which are under 60ft in height. With accessory and incidental residential occupancy's only 10% of a given floor is allowed nonresidential. Example: Laundry room, mechanical closest, swimming pool. Once you go past the 60ft limit or exceed the limitations on accessory or incidental spaces your building is declared a mixed use. If one of the mixed use occupancies would require a sprinkler system throughout the building in accordance with NFPA 13, then a 13R system would not be allowed.

13 NFPA 13 Density NFPA 13 Light Hazard 0.10 GPM Ordinary Hazard (1) 0.15 GPM Ordinary Hazard (2) 0.20 GPM Extra Hazard (1) 0.30 GPM Extra Hazard (2) 0.40 GPM

14 NFPA 13R Density NFPA 13R: A minimum of 0.05 GPM for, excludes QR and EC. In accordance to NFPA 13R; Quick Response and Extended Coverage sprinklers are required to be 0.10 GPM over the entire dwelling unit.

15 Inside Dwelling Units NFPA 13 NFPA 13 requires 4 adjacent sprinklers, without regard to boundaries. These 4 hydraulically most demanding sprinklers shall be: 1) In accordance with minimum flow rate indicated in individual listings. 2) Calculated based on delivering a minimum of 0.1 gpm/ft2 over the design area.

16 Inside Dwelling Units NFPA 13R NFPA 13R, all sprinklers within a compartment, a maximum of 4 adjacent sprinklers, with the greatest hydraulic demand. Compartment, a space completely enclosed by walls and a ceiling. Each wall in the compartment is permitted to have openings to an adjoining space if the openings have a minimum lintel depth of 8 in. from the ceiling and the total width of the openings in a single wall does not exceed 8 ft in width. A single opening of 36 in. or less in width without a lintel is permitted when there are no other openings to adjoining spaces. MINIMUM OPERATING PRESSURE OF 7 PSI FOR BOTH STANDARDS.

17 Outside Dwelling Unit NFPA 13 NFPA 13, When using the room design method or the area under consideration is a corridor; maximum of 5 adjacent sprinklers with a single line of sprinklers or 75 linear ft. which ever is greater. NFPA 13, If a corridor is present, the designer has to calculate the largest room, as well as the 5 sprinklers in the corridor. To determine the greatest demand.

18 Outside Dwelling Unit NFPA 13R NFPA 13R, A corridor shall include up to 4 most hydraulically demanding adjacent sprinklers..in accordance to Sprinklers outside the dwelling units shall be quickresponse, and selection shall be based on the requirements of NFPA 13, except where permitted by , which allows the use of residential sprinklers in corridors leading to the dwelling units.

19 The number of design sprinklers for a corridor or breezeway outside the dwelling unit shall include up to the four most hydraulically demanding adjacent sprinklers.

20 Hose Allowance & Water Supply Duration. NFPA 13 Light hazard Hose 100 gpm Duration 30 minutes Ordinary Hazard Hose 250 gpm Duration minutes Extra Harzard Hose 500 gpm Duration minutes NFPA 13R Hose 100 gpm Duration 30 minutes.

21 IFC 905 & NFPA 14 Standpipes Standpipes are required in buildings to provide quick, convent water source for the fire department. There are three classes of standpipes in which depend on building height, area, occupancy, and extent of automatic sprinkler system. Class 3 standpipes systems shall be installed throughout buildings where the floor level of the highest story is located more than 30ft above the lowest level of the fire department vehicle access. NFPA 14; where two or more standpipes are installed in the same building or section of building, they shall be interconnected. NFPA 14; Class I and Class III standpipes shall be at least 4 in. in size. One or more fire department connections shall be provided for each zone of each Class I or Class III standpipe system.

22 NFPA 13 Combustible Concealed Spaces NFPA 13 requires combustible concealed spaces including attics, floor/ceiling assemblies exterior balconies, and bathrooms to be sprinklered. NFPA 13 does allow certain sprinkler omissions, including, concealed spaces formed by studs or joist with less than 6 between the inside or near edges of the studs, joists, roof, or floor deck; these shall not require sprinkler protection. Concealed spaces filled with noncombustible insulation shall not require sprinkler protection. Concealed spaces over isolated small rooms not exceeding 55ft in area shall not require sprinkler protection. For more omissions refer to chapter 8 of NFPA 13.

23 NFPA 13R Combustible Concealed Spaces NFPA 13R specifies that sprinklers are not required in combustible concealed spaces which are not used for living, storage, or fuel fired equipment. An attic is an example of a combustible concealed space. NFPA 13 requires combustible concealed spaces to be protected by sprinklers. NFPA 13R does not.

24 Residential Building Designed to NFPA 13 Density of.10 GPM Hose Allowance 100 GPM

25 Residential Building Designed to NFPA 13R In accordance to NFPA 13R all sprinklers within a compartment, up to maximum of four adjacent sprinklers, that requires the greatest hydraulic demand. A compartment is a space completely enclosed by walls and a ceiling. Each wall in the compartment is permitted to have openings to an adjoining space if the openings have a minimum lintel depth of 8 in. from the ceiling and the total width of the openings in a single wall does not exceed 8ft in width. A single opening of 36 in. or less in width without lintel is permitted when there are no other openings to adjoining spaces.

26 Residential Building Designed to NFPA 13R

27 Handout & Questions?

28 NFPA 72 Completion Documents The system installer is responsible for record completion. Record of completion is due at least 24 hours prior to inspection. Record of completion forms include: Type of system Name of installer Locations of record drawings Owners manual Test reports Also provides a confirming record of acceptance tests and gives details about the components and wiring of the systems. Fire Alarm and Emergency Communication System Record of Completion

29 NFPA 72 Record of Completion Documents & Intelligibility If you design a voice system you have to test for intelligibility. The testing of a voice system includes intelligibility testing. Record of the intelligibility testing should be submitted with the Record of Completion.

30 NFPA 72 Intelligibility Refresher NFPA , defines intelligibility as the quality or condition of being intelligible. It further states intelligible is capable of being understood; comprehensible; clear. Speech Transmission Index (STI) is a measure of speech transmission quality. The STI measures some physical characteristics of a transmission channel and expresses the ability of the channel to carry across the characteristics of a speech signal. The Common Intelligibility Scale (CIS) was created to map all quantitative intelligibility measurement methods to the same scale so that all different results can be compared. In order to help achieve the needed intelligibility, it is important to ensure the speaker sound output is 15 db over ambient noise. For voice evacuation, speakers ideally should have a frequency range between 150 and 11,000 Hertz (Hz) because this is the frequency range that an adult voice produces.

31 NFPA 72 Intelligibility Average STI of not less than 0.50 (0.70 CIS) Intelligibility meters, which measure either STI or CIS scores, are the most accurate and practical means of conducting intelligibility testing.

32 NFPA 72 Intelligibility Factors that effect intelligibility test results Tolerance of the message generator and amplifier. Loading of the audio amplifiers. Mechanical Excessive voltage drop in the speaker circuit. Vibration Damaged speakers Finishing's in the area. Size of room Distance between speakers.

33 What to Include for Intelligibility Testing You can document the intelligibility test many ways, but must include the following: Scale CIS STI Intelligibility readings for at least all of the test locations identified on the approved fire alarm plans. You can record them on a plan or in a list. Average reading if all of the readings do not meet the minimum.

34 Thank you! Questions?