Table 4 Choosing Cable-Entry Devices For Equipment In; Potentially Explosive Atmospheres - Federal Signal Global Serie G-SND Sounder Instalación Y Instrucciones De Mantenimiento

Table 4 Choosing cable-entry devices for Equipment in

Models
G-SND-XXX-D
(Ex db surface mount)
G-SND-XXX-E
G-SND-XXX-D
(Ex db surface mount)
G-SND-XXX-E
(Ex db e surface
mount)
UL Fire Alarm Certifications
The audible sounder models that are powered using 24 Vdc input are Listed by
Underwriters Laboratories (UL) for use in fire alarm applications. The 120 Vac
and 230 Vac inputs have not been evaluated. These models have the following
nomenclature:
G-SND-MV-D, G-SND-MV-D, G-SND-MV-T, and G-SND-024-E. They have an
electrical rating of 515 mA maximum at 24 regulated voltage Vdc (16 Vdc to 33
Vdc).
NOTE: UL only evaluated this product to the stated operational voltage range. It was
not evaluated to 80% to 110%. of the voltage range.
The sounder is factory-set with the tone selector switch set to the
No. 12 setting. This is a constant 1 kHz tone. This is the only tone setting that
has been evaluated for fire alarm applications. At this tone the sounder has a
sound pressure level of 79.0 dB. See Figure 9 for the dispersion characteristics.
The units can be mounted on a wall or ceiling and have no mounting orientation
restriction. For specific installation and wiring requirements, refer to local codes
such as the National Code (NFPA70) and the National Fire Alarm and Signaling
Code (NFPA72).
Installation and Maintenance Instructions

Potentially Explosive Atmospheres

Ex
Atmospheres
Gas
Gas
Dust
Model G-SND Global Series Sounder
Cable Entry Devices
(cable glands, stopping plugs,
Cable entry devices shall be equipment
certified as flameproof. To maintain the
ingress protection of the flameproof sounder
enclosure, we recommend the cable entry
device be IP66 certified.
For the flameproof enclosure, cable entry
devices shall be equipment certified as
flameproof. To maintain the ingress protection
of the flameproof enclosure we recommend
the cable entry device be IP66 certified. For
the increased safety terminal enclosures
(terminal boxes), cable entry devices shall be
equipment certified as increased safety and
shall maintain an IP rating of IP54.
Cable entry devices for the and terminal
enclosures shall be equipment certified
as dust protected. To maintain the ingress
protection of the sounder and terminal
enclosures the cable entry devices shall be
IP6X certified.
etc.
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