GE Security 1500-2.7, Инструкция по установке и эксплуатации

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9
ESL 1500 Series Fire Alarm Control Panel
Installation Recommendations/Precautions
Note:
The 1500 System is capable of power limited operation per NEC Article 760, Section C. All circuits are
power limitedexcept: CASE GND, TRB COM, TRB NO, ALM COM, ALM NC, and LEM terminals. Non-power
limited circuits must be separated from power limited circuits by a minimum of 1/4 inches (0.6cm). See Figure 7 for
one method of routing power limited wiring.
CAUTION
Do not route LEM field wires in close proximity of high voltage wiring. LEM filed wiring must not exceed 3280
feet (1000m).
Verify wire sizes are adequate for all indicating and initiating circuits. The maximum allowable initiating zone resistance is 100
Ohms. (Exception: When ESL 2-wire smoke detectors with integral sounders are used, maximum initating zone resistance is 50
Ohms. See Table 3.)
Many audible/visual signaling appliances cannot tolerate more than a 20 percent voltage drop from the specified device voltages.
See Table 4 to determine maximum distance for wire gauge used.
Incoming AC voltage should be stable at a nominal 120 volts. This is especially important in new construction where incoming
power may be high or unstable with temporary connections often causing large, inductive voltage spikes.
Ground the system properly. The AC imput, power supply/battery charger should use an isolated ground, not a conduit
ground. Do not connect this system to a conduit or green wire circuit that also is used to power resistance heating, motors, fans,
air conditioning equipment, or florescent lighting circuits since leakage currents into the ground return could damage system
components. A separate earth ground or cold water pipe with properly bypassed water meter should be used. Provide a separate
earth ground, if water mains are non-conductive.
Run signal wires separately. Most supervised circuits use voltage or current sensing circuits which are very sensitive to
induced voltages on the sensor wiring. Therefore, under no circumstances run AC power, speaker, public address, intercom, or
switch control wiring with inductive loads in the same conduit or in the immediate vicinity of the control wiring.
Figure 7. Power Limited Routing
1. Case ground
2. Power limited Zone 1 and Remote Annunciator
3. Non-power limited trouble and alarm contacts
4. Power limited bell circuits
5. Power limited Zone 2 through 5 and Remote Annunciator
6. Housing backbox
7. Battery area
8. Non-power limited LEM
9. Non-power limited 28 VAC
Table 3. Wire Resistance
Gauge Ohms per 1000 ft. @ 20
°
C of
single conductor copper wire
12 1.6
14 2.5
16 4.0
18 6.4
20 10.0
22 16.0
1 2 3 4 5 6 7 8 17 9 10 11 12 13 14 15 16
18
19
20
21
22
23
24
1 2 3 4 5 6 7 8 1 2 10 9 1 2 3 4 5 6 7 8 10 9
ESL 1500 Series Fire Alarm
Control Panel
1
2
3
4
5
6
7
8
9
Table 4. Alarm Indicating Circuit Wire Size
Total device Max. ft. of paired wire from B+ to
load (Amps) EOL resistor
18AWG
16AWG 14AWG 12AWG
.100 1500 2500 4000 6200
.500 300 500 800 1290
1.000 150 250 400 620
(Maximum voltage drop allowable: 2 VDC)