Protectowire 2000 FireSystem Manual de usuario descargar pdf (Pagina 20)

Mechanical Protection

Whenever the Detector comes within 6 feet

(1.8m) of the floor, it should be enclosed in con-

duit. This applies particularly to entry into manu-

al stations, control units, zone or end-of-line

junction boxes, and to all runs through floors.

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“Where a line-type detector is used in an

application other than open area protection,

the manufacturer’s installation instructions

shall be followed,” (NFPA 72-10). This section

of the manual is intended to provide general

guidance for installing Protectowire in several

special applications such as cable trays, con-

veyors, etc. Protectowire Linear Heat Detector

should typically be installed as shown in the

following diagrams with reference to the cor-

responding application.

Cable Trays

Figure 20 illustrates Protectowire Linear Heat

Detector installed in a sine wave pattern in a

cable tray. The Detector is run on top of all

power and control cables in a tray and is

Figure 20

42-48 in. (107-122cm)

FROM FLOOR OR AS

CODE REQUIRES

Figure 19 Detail at Manual Station

Figure 20A

Estimating chart and formulas

Width of cable tray Multiplier

4 ft. (1.2m) 1.75

3 ft. (.9m) 1.50

2 ft. (.6m) 1.25

1 ft. 6 in. (.5m) 1.15

Length of cable tray x multiplier = Length of Protectowire

Length of cable tray in feet ÷ 3 + 1 = Number of mounting clips

(Approx. 1.1 clips per meter of cable tray length + 1)

Model CC-2 Clip

Side rail

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 32 33

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Protectowire 2000 FireSystem Manual de usuario Pagina 20