Цитата(intexa @ 1.4.2018, 12:37)
Здравствуйте.
Согласно СП5 расстояние от центра термочувствительного элемента теплового замка до плоскости перекрытия не должно превышать 400 мм. В моем случае перекрытие выполнено по профнастилу (высота волны 75 мм). Откуда замерять эти 400 мм - от низа волны или от верха? У кого-нибудь есть опыт решения подобных вопросов?
Уточнение: СП.5 п.5.2.12 5.2.12 Расстояние от центра термочувствительного элемента теплового замка спринклерного
оросителя до плоскости перекрытия (покрытия) должно быть в пределах (0,08 до
0,30) м;
в исключи-
тельных случаях, обусловленных конструкцией покрытий (например, наличием выступов), допускает-
ся увеличить это расстояние до
0,40 м.
Поэтому,IMHO, надёжнее считать от верха волны.
Сравним с NFPA-13
8.5.4.1.2 Corrugated Metal Deck Roofs.
8.5.4.1.2.1 For corrugated metal deck roofs up to 3 in.
(76 mm) in depth, the distance shall be measured to the sprinkler
from the bottom of the deck.
8.5.4.1.2.2 For decks deeper than 3 in. (76 mm), the distance
shall be measured to the highest point on the deck.
8.6.4.1 Distance Below Ceilings.
8.6.4.1.1 Unobstructed Construction.
8.6.4.1.1.1 Under unobstructed construction, the distance
between the sprinkler deflector and the ceiling shall be a minimum of 1 in. (25.4 mm) and a maximum of 12 in. (305 mm)
throughout the area of coverage of the sprinkler.
8.6.4.1.1.2 The requirements of 8.6.4.1.1.1 shall not apply
where ceiling-type sprinklers (concealed, recessed, and flush
types) have the operating element above the ceiling and the
deflector located nearer to the ceiling where installed in accordance
with their listing
8.6.4.1.2 Obstructed Construction. Under obstructed construction,
the sprinkler deflector shall be located in accordance
with one of the following arrangements:
(1 ) Installed with the deflectors within the horizontal planes
of 1 in. to 6 in. (25.4 mm to 152 mm) below the structural
members and a maximum distance of 22 in. (559 mm)
below the ceiling/roof deck
(2 ) Installed with the deflectors at or above the bottom of the
structural member to a maximum of 22 in. (559 mm)
below the ceiling/roof deck where the sprinkler is installed
in conformance with 8.6.5.1.2
(3) Installed in each bay of obstructed construction, with the
deflectors located a minimum of 1 in. (25.4 mm) and a
maximum of 12 in. (305 mm) below the ceiling(3 )-это примерный аналог п.5.2.11 СП5(4 ) Installed with the deflectors within the horizontal planes
1 in. to 6 in. (25.4 mm to 152 mm) below composite wood
joists to a maximum distance of 22 in. (559 mm) below
the ceiling/roof deck only where joist channels are firestopped
to the full depth of the joists with material equivalent
to the web construction so that individual channel
areas do not exceed 300 ft2 (27.9 m2)
(5 )*Installed with deflectors of sprinklers under concrete tee
construction with stems spaced less than 71⁄2 ft (2.3 m) but
more than 3 ft (0.91 m) on centers, regardless of the
depth of the tee, located at or above a horizontal plane
1 in. (25.4 mm) below the bottom of the stems of the tees
and complying with Table 8.6.5.1.2
Сообщение отредактировал BTS - 1.4.2018, 14:48
Установка оросителей спринклерной АУПТ, Расстояние от покрытия из профнастила
1.4.2018, 12:37
