Equinox: Difference between revisions

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(cleaned up for clarification)
(Equinox is 125.3 at 100 feet, per Perry Nuclear Design Report; citing FS anechoic chamber test report AR100223A, conducted on Feb 23, 2010.)
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{{Infobox siren
{{Infobox siren
|image= [[File:Perry NGS Equinox.JPG|thumb|A Federal Signal Equinox in Mentor, OH; part of the Perry Nuclear Generating Station Siren System.]]
|image= [[File:Perry NGS Equinox.JPG|thumb|A Federal Signal Equinox in Mentor, OH; part of the Perry Nuclear Power Plant Siren System.]]
|company= [[Federal Signal Corporation]]
|company= [[Federal Signal Corporation]]
|produced= 2010-2013 (special order), 2014-present (Under the [[2001 Siren Series|2001]] series line)
|produced= 2010-2013 (special order), 2014-present (Under the [[2001 Siren Series|2001]] series line)
|neigh= 6.5
|neigh= 6.5
|hertz= 500
|hertz= 500
|output= 126
|output= 125.3
|succeeded= [[508]]
|succeeded= [[508]]
|type= [[Electromechanical]]
|type= [[Electromechanical]]
}}
}}


The Equinox is a rotating electromechanical siren produced by [[Federal Signal Corporation]]. It was initially a special order in 2010, essentially being a [[2001-130]] with an [[Eclipse-8]] rotor. The intake and projector design of the 2001 proved to hamper it's full potential in testing, bottlenecking its ability to move air and sound effectively. This led to a new development to fix said issues known today as the [[508]], with an improved overall intake/projector design to increase efficiency. The Equinox can be difficult to visibly differentiate from the 2001-130 as they look nearly identical, besides the "EQUINOX" sticker replacing "2001-130" on the rotator box.  However, if you look closely, the stators are noticeably different on the 2 models. The 2001-130 has 12 individual projectors on the stator with narrow gaps between them, where the Equinox only has 8 with rather large gaps between them. In 2014, the Equinox was publicly introduced as a low tone option to the [[2001 series]] and is still available today. Around 200 units have been produced as of 2021.
The Equinox is a rotating electromechanical siren produced by [[Federal Signal Corporation]]. It shares many characteristics of its design with the 2001-130, essentially being a [[2001-130]] with an [[Eclipse-8]] rotor and 8-port stator. The intake and projector design of the 2001 proved to hamper it's full potential in testing, bottlenecking its ability to move air and sound effectively. This led to the development of a new siren, the [[508]], which has an improved overall intake/projector design to increase efficiency. The Equinox can be difficult to visibly differentiate from the 2001-130 as they look nearly identical, besides the "EQUINOX" sticker replacing "2001-130" on the rotator box.  However, if you look closely, the stators are noticeably different on the 2 models. The 2001-130 has 12 individual projectors on the stator with narrow gaps between them, where the Equinox only has 8 with rather large gaps between them. In 2014, the Equinox was publicly introduced as a low tone option to the [[2001 series]] and is still available today. Despite this, only around 200 units have been produced as of 2021.


Initially, these sirens were rolled out on special order to the nuclear power plant market that had wanted sirens with a lower peak pitch than a [[2001-130]] that would, in theory, be more powerful and have a longer range due to the lower frequency. The first system of Equinox sirens were ordered and installed in 2010 around the Beaver Valley Power Station in Shippingport, Pennsylvania. Another system was installed at another FENOC plant, Perry, beginning in 2012. While these are considered to be the first installation of Equinoxes, one was installed in New Carlisle, a village in Clark County, Ohio, in 2010, so it is possible that municipalities were able to order the Equinox on request as well.
Initially, these sirens were rolled out on special order to the nuclear power plant market that had wanted sirens with a lower peak pitch than a [[2001-130]] that would in theory be more powerful and have a longer range due to the lower frequency. The first system of Equinox sirens were installed in 2010 around the Beaver Valley Power Station in Shippingport, Pennsylvania, a nuclear plant operated at the time by FirstEnergy Nuclear. The next system was installed at another FENOC plant, Perry, beginning in 2012. While these are considered to be the first installation of Equinoxes, one was installed in New Carlisle, Ohio in 2010, so it is possible that municipalities were able to order the Equinox on special request as well during this period. In 2021, Lansing, Michigan, received a number of Equinoxes to replace their aging system; the largest system of Equinoxes to be installed since the nuclear plant installations.


[[File:BB5B6DD9-D412-42C6-B202-DF4BEB5B6073.jpeg|thumb|Equinox ID tag from damaged Equinox (fell during a windstorm), part of the system for Beaver Valley Power Station in Hookstown, PA. Photo taken by Tyler Davis.]]
[[File:BB5B6DD9-D412-42C6-B202-DF4BEB5B6073.jpeg|thumb|Equinox ID tag from damaged Equinox (fell during a windstorm), part of the system for Beaver Valley Power Station in Hookstown, PA. Photo taken by Tyler Davis.]]

Revision as of 23:41, 18 April 2022

Equinox
[[File:
A Federal Signal Equinox in Mentor, OH; part of the Perry Nuclear Power Plant Siren System.
|200px]]
Company Federal Signal Corporation
Produced 2010-2013 (special order), 2014-present (Under the 2001 series line)
Type Electromechanical
Sound output 125.3
Succeeded by 508

The Equinox is a rotating electromechanical siren produced by Federal Signal Corporation. It shares many characteristics of its design with the 2001-130, essentially being a 2001-130 with an Eclipse-8 rotor and 8-port stator. The intake and projector design of the 2001 proved to hamper it's full potential in testing, bottlenecking its ability to move air and sound effectively. This led to the development of a new siren, the 508, which has an improved overall intake/projector design to increase efficiency. The Equinox can be difficult to visibly differentiate from the 2001-130 as they look nearly identical, besides the "EQUINOX" sticker replacing "2001-130" on the rotator box. However, if you look closely, the stators are noticeably different on the 2 models. The 2001-130 has 12 individual projectors on the stator with narrow gaps between them, where the Equinox only has 8 with rather large gaps between them. In 2014, the Equinox was publicly introduced as a low tone option to the 2001 series and is still available today. Despite this, only around 200 units have been produced as of 2021.

Initially, these sirens were rolled out on special order to the nuclear power plant market that had wanted sirens with a lower peak pitch than a 2001-130 that would in theory be more powerful and have a longer range due to the lower frequency. The first system of Equinox sirens were installed in 2010 around the Beaver Valley Power Station in Shippingport, Pennsylvania, a nuclear plant operated at the time by FirstEnergy Nuclear. The next system was installed at another FENOC plant, Perry, beginning in 2012. While these are considered to be the first installation of Equinoxes, one was installed in New Carlisle, Ohio in 2010, so it is possible that municipalities were able to order the Equinox on special request as well during this period. In 2021, Lansing, Michigan, received a number of Equinoxes to replace their aging system; the largest system of Equinoxes to be installed since the nuclear plant installations.

Equinox ID tag from damaged Equinox (fell during a windstorm), part of the system for Beaver Valley Power Station in Hookstown, PA. Photo taken by Tyler Davis.

Examples