Protectowire 2000 FireSystem Instrukcja Użytkownika Pobierz pdf (Strona 6)

Copper feed wire, of an approved type, with a

minimum conductor size of 18 AWG, shall be

installed from the control panel out to the

hazard area where it is then connected to the

beginning of the Protectowire portion of the

circuit. To determine the recommended wire

gauge size and maximum length of copper

feed wire which may be used on each initiat-

ing circuit of a Protectowire FireSystem

Control Panel, refer to Table 1.

The Protectowire portion of every initiating

circuit shall terminate at each end in an

approved zone box, end-of-line zone box, or

other approved junction box provided as part

of the system. Strain relief connectors, Series

SR-502, shall be installed in all junction boxes

where Protectowire enters or exits the enclo-

sure, in order to hold the cable securely and

maintain dust and moisture tight conditions.

All zone box enclosures shall be rated and

approved for use in the environment where

they will be installed.

All electrical connections made within each

zone box between Protectowire and the cir-

cuits’ interconnecting copper wire or end of

line device, shall be made via terminals. The

Protectowire Company supplies zone boxes,

identified by the letters QC, which contain a

compression type terminal strip which allows

the installer to directly connect Protectowire

conductors to the terminals. In all other cases,

PFL Flexible Leads must be used to connect

Protectowire conductors to electrical termi-

nals. PFL’s consist of a twisted pair of soft cop-

per wires each with a PWS Splicing Sleeve

staked on one end, and insulated with slip-on

vinyl tubing. One lead is secured to each con-

ductor by bending as in making a PWS splice,

and insulated and taped in the same way (See

Figure 7A). The use of wire nuts or other sim-

ilar wiring devices not specifically approved

by The Protectowire Company, is not recom-

mended and shall be considered a misappli-

cation of the product.

Figures 1 and 1A depict the typical field wiring

of a ZB-4-QC-MP Zone Box in a Class B detec-

tion circuit of a fire alarm system using

Protectowire Linear Heat Detector. Figure 1B

depicts the field wiring utilized in a Class A

type detection circuit. It is important to note

that in each case, Protectowire may be con-

nected directly to the QC type terminals and

that all bends in the Detector should have a

radius of not less than 2.5 inches (6.4 cm).

GGeenneerraall PPrriinncciipplleess

Protectowire must be installed in continuous

runs without taps or branches to comply with

locations and spacing prescribed by the approv-

ing authorities. Except for zoning requirements

(alarm source indication) the length of each run

is limited, and controlled by the electrical char-

acteristics of the control equipment to which the

Detector is connected.

The Protectowire Company’s FireSystem

Control Panels have been specifically designed

for compatible operation with Protectowire

Linear Heat Detector. Each FireSystem Control

Panel has been approved for operating

Protectowire Linear Heat Detector, approved

smoke detectors or a combination of the two

devices on the same initiating circuit. The max-

imum quantity of detectors and length of sen-

sor cable will vary based upon the specific

control panel utilized. Please refer to the

Maximum Copper Feed Cable Length vs.

Wire Gauge (Diameter)

For Protectowire FireSystem Initiating Circuits

Initiating Circuits with Protectowire Alarm Point

Location Meter (18 ohms offset)

MAX. LENGTH OF

AWG* DIA. 2 CONDUCTOR CABLE

#18 1.02 mm 1,360 feet (414 m)

#16 1.27 mm 2,200 feet (670 m)

#14 1.63 mm 3,500 feet (1,067 m)

#12 2.05 mm 5,500 feet (1,676 m)

Initiating Circuits Without Alarm Point Location

Meter (Max. Resistance 100 ohms)

MAX. LENGTH OFF

AWG* DIA. 2 CONDUCTOR CABLE

#18 1.02 mm 7,600 feet (2,316 m)

#16 1.27 mm 12,200 feet (3,719 m)

#14 1.63 mm 19,400 feet (5,913 m)

#12 2.05 mm 30,800 feet (9,388 m)

*American Wire Gauge

Table 1

1 2 3 4 5 6 7 8 9 10 11 ... 32 33

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Protectowire 2000 FireSystem Instrukcja Użytkownika Strona 6

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