Protectowire 2000 FireSystem Especificaciones descargar pdf (Pagina 12)

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To ensure that all alarm notification appliance circuits will be supplied with adequate power to operate, it is

necessary to use the correct size feed cable for the distance and current requirement of each circuit. Follow the steps

below to calculate the correct wire size for your application. The calculations are based on a maximum line loss (voltage

drop) of 2 volts.

1. Calculate the required alarm device current.

(Number of Devices) X (Device Current) = Total Alarm Device Current (amps).

2. Determine the wire run distance in feet from the panel to the last alarm device.

3. Find the load current (amps) on Table 3 that best matches the required alarm device current. If the device current is in

between two values, use the higher value.

4. Find the wire run distance to the right of the device current value chosen in Step 3 which is greater than your require-

ment.

The gauge at the top of the distance column is what will be required to ensure a maximum line loss of less than 2 volts.

EXAMPLE: If the total alarm device load is .680 amps; select .750 amps. If the measured distance is 400 ft.; select

517 ft. which is in the 14 AWG column.

AWG = AMERICAN WIRE GAUGE

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10 1.018

12 1.619

14 2.575

16 4.094

18 6.510

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18 AWG 16 AWG 14 AWG 12 AWG 10 AWG

0.060 2550 4050 6450 10250 16350

0.125 1200 1950 3150 4900 7850

0.250 600 950 1550 2450 3900

0.375 400 650 1000 1600 2600

0.500 300 450 750 1200 1950

0.625 200 350 600 950 1550

0.750 200 300 500 800 1300

1.000 150 200 350 600 950

1.250 100 150 300 450 750

1.500 100 150 250 400 650

1.750 50 100 200 350 550

2.000 50 100 200 300 450

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Note: the maximum alarm indicating circuit resistance is

calculated for a line loss of 2 volts divided by the maxi-

mum alarm device current.

~ 9~

DEVICE MFGR. MODEL AMPS

H24W 0.035

AMESCO

HW-24 0.035

WHEELOCK MIZ 0.043

HORNS

FEDERAL 450 0.25

MBA-6-24 0.012

AMESCO

MBA-8-24 0.025

MOTOR

BELLS

WHEELOCK MB 0.030

SLW24W 0.120

AMESCO

SAD24 0.250

AHWP 0.100

WHEELOCK

ASWP 0.113

STROBE

FEDERAL LP3 SERIES 0.22

SHW24W 0.088

AMESCO

SHP24 0.250

HORN/

STROBE

WHEELOCK NS4 0.361

AV1ST 0.39

STROBE/

BUZZER

FEDERAL

AV1 0.98

For complete list of Notification Appliance Devices and

their corresponding current draw )N&&$.N

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 62 63

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Protectowire 2000 FireSystem Especificaciones Pagina 12

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