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In-Rack Sprinkler
Part VI
In-Rack Sprinkler Protection Options That Are
Independent of the Ceiling Sprinkler Design
(Option III)
1
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ﻓﻴﻮﺟﺪ ﺛﻼث ﻃﺮقIn rack sprinkler is independent of ceiling sprinkler ﺣﺎﻟﺔ اذا ﺎن ال
(Option I & Option II) ( ﻟﻠﺘﺼﻤ ﻢ و ﺗﻢ ﻣﻨﺎﻗﺸﺔoption I, option II and option III) ﻣﺨﺘﻠﻔﺔ
.(Option III) و ﺳ ﺘﻢ اﻵن ﻣﻨﺎﻗﺸﺔ
ﻣﻦ ﻣﻤ ات ﻫﺬە اﻟﻄ ﻘﺔ ان ال
In-rack sprinkler System Is not hydraulically balanced with Ceiling sprinkler
system
ﻣﻊ ﻌﺾ اوCeiling sprinkler وIn rack sprinkler و ﺎﻟﺘﺎ ﻏ ﻣﺠ ﻦ اﻧﻨﺎ ﻧﺤﻘﻖ ﻤ ﺔ اﻟﻔﻠﻮ ﻟﻞ
Ceiling system و الIn rack system ان ﻳﺘﻢ ﺟﻤﻌﻬﻢ و ﺎﻟﺘﺎ ﻳﺘﻢ ﺣﺴﺎب ﻤ ﺔ اﻟﻔﻠﻮر ﺖ ﻟﻞ
.ﺸ ﻞ ﻣﻨﻔﺼﻞ
Option III
ﻣﺴﺎﻓﺔ رأﺳ ﺔ ﻟ ﻤﻨﻊ اﻧ ﺸﺎر اﻟﺤ ﻖ و ﻳﻮﺿﻊ ﻋHorizontal Barrier ﻫﺬە اﻟﺤﺎﻟﺔ ﻳﺘﻢ اﺳﺘﺨﺪام
:ﺣﺎﻟﺔ ال ﻣﻌﻴﻨﻪ ﻓ
ﻓﻴﺘﻢ ﺗﺮﻛﻴ ﻪ:open frame rack with class I: IV & cartooned group A plastic
ﻣ9.1 ﻋ ارﺗﻔﺎع ﻻ ﺬ ﺪ ﻋﻦ
ﻓﻴﺘﻢ ﺗﺮﻛﻴ ﻪ ﻋ:open frame rack with exposed group A plastic commodity
ﻣ6.1 ارﺗﻔﺎع ﻻ ﺬ ﺪ ﻋﻦ
.ﻞ ﻟ ﻔﻞ ﻣﻦ اﻻرﻓﻒ ﻋHorizontal Barrier ﻓﻴﺘﻢ ﺗﺮﻛ ﺐ الsolid shelves
2
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: اﻟﻤﺴﺘﺨﺪمin-rack sprinkler ﺠﺐ ان ﻜﻮن ال
CMDA, Pendent, Intermediate Temperature Rated & Extended Coverage with
Nominal K-Factor 25.2
. ﺳﻢ15 اﻟﺮﺷﺎش و اﻟﻤﻮاد اﻟﺨﺰﻧﺔ ﻋﻦ و ﺠﺐ اﻻ ﺗﻘﻞ اﻟﻤﺴﺎﻓﺔ ﺑ
Single Raw Rack
figure ﺣﺴﺐ اﻟﺨﻄﻮرة ﻫﻘﺪر اﺣﺪد ال و ﻋfigures ﻳﺘﻢ ﺗﻮز ــﻊ اﻟﺮﺷﺎﺷﺎت ﻃ ﻘﺎ ﻟ ﻌﺾ ال
.اﻟﻤﻨﺎﺳﺐ
. ﻣ3.1 اﻟﺮﺷﺎﺷﺎت ﺠﺐ اﻻ ﺗﺬ ﺪ ﻋﻦ ﻣﺴﺎﻓﺔ ﺑ اﻗ
: و اﻟﺮﺳﻮﻣﺎت اﻵﺗ ﺔ ﺗﻮﺿﺢ ﻃ ﻘﺔ اﻟﺘﻮز ــﻊ
3
878 Chapter 25 • Protection of Rack Storage Using In-Rack Sprinklers
Horizontal barrier
X X
10 ft (3.1 m)
max
Plan View (Option1)
Horizontal barrier
X X
10 ft (3.1 m)
max
Plan View (Option 2) Horizontal barrier
X X
3 in. (75 mm) max gap at rack upright
10 ft (3.1 m)
max
X X
Plan View (Option1)
Horizontal barrier
X X
10 ft (3.1 m)
max
Plan View (Option 2)
30 ft (9.1 m)
max 3 in. (75 mm) max gap at rack upright
X X
20 ft (6.1 m)
max
X X
X X
30 ft (9.1 m)
max
20 ft (6.1 m)
max
Elevation View Elevation View
FIGURE 25.8.3.3.1(A)(a) Alternative In-Rack FIGURE 25.8.3.3.1(A)(b) Alternative
Sprinkler Protection for Class I Through In-Rack Sprinkler Protection for Exposed
Class IV and Cartoned Group A Plastic Group A Plastic Commodities in Single-Row
Commodities in Single-Row Racks, Option 3. Racks, Option 3.
2019 Automatic Sprinkler Systems Handbook
BK-NFPA-13HB19-180218-Chp25.indd 878 02/11/18 10:47 AM
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Double Raw Rack
ﺣﺴﺐ اﻟﺨﻄﻮرة ﻫﻘﺪر اﺣﺪد ال figure ﻳﺘﻢ ﺗﻮز ــﻊ اﻟﺮﺷﺎﺷﺎت ﻃ ﻘﺎ ﻟ ﻌﺾ ال figuresو ﻋ
اﻟﻤﻨﺎﺳﺐ.
اﻟﺮﺷﺎﺷﺎت ﺠﺐ اﻻ ﺗﺬ ﺪ ﻋﻦ 3.1ﻣ . ﻣﺴﺎﻓﺔ ﺑ اﻗ
و اﻟﺮﺳﻮﻣﺎت اﻵﺗ ﺔ ﺗﻮﺿﺢ ﻃ ﻘﺔ اﻟﺘﻮز ــﻊ:
5
Section 25.8 • Alternative In-Rack Sprinkler Protection Options That Are Independent of the Ceiling Sprinkler Design 879
Horizontal barrier
X X
10 ft (3.1 m)
max
Plan View
3 in. (75 mm) max gap at rack upright
X X
Horizontal barrier
X X
10 ft (3.1 m)
max
Plan View
30 ft (9.1 m)
max
3 in. (75 mm) max gap at rack upright
X X
20 ft (6.1 m)
X X max
X X
30 ft (9.1 m)
max
20 ft (6.1 m)
max
Elevation View Elevation View
FIGURE 25.8.3.3.2(A)(a) Alternative In-Rack FIGURE 25.8.3.3.2(A)(b) Alternative
Sprinkler Protection for Class I Through Class IV In-Rack Sprinkler Protection for Exposed
and Cartoned Group A Plastic Commodities in Group A Plastic Commodities in Double-Row
Double-Row Racks, Option 3. Racks, Option 3.
Automatic Sprinkler Systems Handbook 2019
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Multiple Raw Rack
ﺣﺴﺐ اﻟﺨﻄﻮرة ﻫﻘﺪر اﺣﺪد ال figure ﻳﺘﻢ ﺗﻮز ــﻊ اﻟﺮﺷﺎﺷﺎت ﻃ ﻘﺎ ﻟ ﻌﺾ ال figuresو ﻋ
اﻟﻤﻨﺎﺳﺐ.
اﻟﺮﺷﺎﺷﺎت ﺠﺐ اﻻ ﺗﺬ ﺪ ﻋﻦ 3.1ﻣ . ﻣﺴﺎﻓﺔ ﺑ اﻗ
و اﻟﺮﺳﻮﻣﺎت اﻵﺗ ﺔ ﺗﻮﺿﺢ ﻃ ﻘﺔ اﻟﺘﻮز ــﻊ:
7
Section 25.9 • In-Rack Sprinkler Arrangements in Combination with CMDA Sprinklers at Ceiling Level 881
Horizontal barrier
15 ft 6 in. (4.7 m)
X X max
Horizontal barrier
Plan View
3 in. (75 mm) max gap at rack upright 15 ft 6 in. (4.7 m)
X X max
X X
Plan View
30 ft (9.1 m) 3 in. (75 mm) max gap at rack upright
max
X X
20 ft (6.1 m)
max
X X
X X
30 ft (9.1 m)
max
20 ft (6.1 m)
max
Elevation View Elevation View
FIGURE 25.8.3.3.3(A)(a) Alternative In-Rack FIGURE 25.8.3.3.3(A)(b) Alternative In-Rack
Sprinkler Protection for Class I Through Class Sprinkler Protection for Exposed Group A
IV and Cartoned Group A Plastic Commodities Plastic Commodities in Multiple-Row Racks,
in Multiple-Row Racks, Option 3. Option 3.
Automatic Sprinkler Systems Handbook 2019
BK-NFPA-13HB19-180218-Chp25.indd 881 02/11/18 10:47 AM
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DESIGN CRITERIA
: For In Rack Sprinkler
اﻟﺤﺴﺎ ﺎت ﺠﺐ اﻻ ﻘﻞ اﻟﻔﻠﻮر ﺖ ﻟﻠﺮﺷﺎش ﻋﻦ 138gpmو ﻳﺘﻢ ادﺧﺎل ا ﻌﺪ ) (4رﺷﺎﺷﺎت
اﻟﻬ ﺪروﻟ ﻜ ﺔ وذﻟﻚ ﺎﻟ ﺴ ﺔ ﻟﻞ:
Single & Double Raw Rack
ﻞ ﺟﺎﻧﺐ و ) (2ﺑ ﻨﻬﻢ ﺎﻟ ﺴ ﺔ: و ﻳﺘﻢ ادﺧﺎل ا ﻌﺪ ) (8رﺷﺎﺷﺎت ﺤ ﺚ ﻜﻮن ) (3رﺷﺎﺷﺎت
Multiple Raw rack
: For Ceiling Sprinkler
ﺠﺐ ان ﻜﻮن اﻟﺮﺷﺎش اﻟﻤﺴﺘﺨﺪم ف اﻟﺴﻘﻒ ﻣﻦ اﻟﻨ ع ال storageﺳﻮاء ESFR, CMDA or
.CMSA
ﻳﺘﻢ اﻋﺘ ﺎر اﻋ ﻟ ﻔﻞ ﻣﻦ ال in-rack sprinklerك Floorو ذﻟﻚ ﻣﻦ اﺟﻞ ﺗﺼﻤ ﻢ ﺗﺼﻤ ﻢ رﺷﺎﺷﺎت
ﻣﻦ 3ﻣ . ﺴﻤﺢ ﺄن ﻜﻮن ارﺗﻔﺎع اﻟﺘﺨ ﻦ ﻓﻮق اﻋ ﻟ ﻔﻞ ا ال ceilingو ﺎﻟﺘﺎ
9
