Sound the Alarm
LNG plant installs mass notification system to notify staff
- By Marla Moran
- Aug 26, 2015
The Peru LNG natural gas liquefaction plant in Pampa Melchorita,
Peru, is located approximately 105 miles south of Lima. The facility
is South America’s first LNG production plant. Open since June
2010, the plant has an annual production capacity of approximately
4.4 million tons of LNG. The Peru LNG project includes two parts:
an LNG Plant with a Marine Terminal from which LNG is shipped overseas, and
a pipeline connected to the existing TgP pipeline to transport natural gas from the
connection point in the mountains of Ayacucho to the LNG Plant located on the
coast at km. 170 of the South Pan American Highway.
Notify the Staff
To support safety and notify personnel in the case of an emergency, Peru LNG’s
needed a general alarm and mass notification system (MNS). For reliable communications
that deliver the right message to the right people at the right time, the
MNS system requirements included:
- Sound fire and gas alarms, that make emergency, safety and routine
- Broadcast in specific plant areas.
- Minimize the risk of accidents by notifying personnel in an effective and
timely manner what to do in the event of an emergency.
- Reliable and easy to operate with the use of real-time diagnostics.
- Modular design to facilitate maintenance and expansion.
- Wired and wireless technologies to cover the whole site.
- The system is required to comply with industry standards and applicable laws.
Peru LNG selected Eaton’s WAVES, for its in-building and outdoor, wide-area
mass notification systems as its complete general alarm system. The battle-tested
and proven system provides critical audio and visual messages that are specific to
the issue and affected area in real-time. The system is designed to protect, alert and
inform people of what do in an emergency or disaster. WAVES wide-area MNS
is designed to broadcast clear voice messages, tones and sirens covering large geographic
The Appropriate Sounds
On confirmation of a fire or gas release, the fire and gas system automatically activates
the general alarm system to sound the appropriate fire or gas alarm tones
throughout the plant. For example, with an integrated system, when gas is detected
in the facility, the gas system triggers WAVES, which then activates the MNS
to automatically broadcast the programmed alerts without human intervention,
reducing the plant’s response time.
For other emergencies, the operator can make announcements directly to the
affected zone or area to give the appropriate information and directions in order to
avoid accidents. Access to the general alarm system is provided from several control
centers; all are capable of emergency speech broadcast. However, cancellation
of the fire or gas alarms is restricted to the central control room.
The MNS consists of five WAVES High Power Speaker Arrays (HPSAs) located
around the plant. Eaton’s HPSAs broadcast highly intelligible live speech,
alarm tones and pre-recorded messages. The HPSA’s vertical line arrays approximate
a line source of sound, creating a nearly cylindrical sound propagation pattern, resulting in balanced sound power output; messages are clearly heard at 100
feet as well as 1,500 feet.
The HPSAs have maximum sound level of 123 dB (C) at 100 feet. Each siren
is controlled from the main control unit, the integrated base station (IBS). Each
siren is equipped with automatic diagnostics that transmits a fault condition to the
Integrated Base Station.
Capability to Broadcast
The indoor general alarm system has the capability to broadcast fire, gas, and
general alarms, together with announcements and to sound the all-clear. In areas
where the ambient noise level is greater than 85 dB(a), flashing strobes are installed.
The internal general alarm consists of SAFEPATH voice evacuation systems
and 64 Wheelock speakers and 16 amber strobes.
SAFEPATH is a multifunction supervised paging, background music delivery
and emergency communications system that provide full control of building audible
and visual notification appliances. The main control unit, the IBS, is in the
central control room and runs the WAVES software which allows commands to
be issued and for data and messages to be sent to the mass notification nodes and
to the general alarm internal nodes. The IBS features one-click action buttons to launch all indoor and outdoor emergency
communication systems simultaneously
from an easy-to-use graphical
user interface (GUI). The status of all
nodes and their associated audible and
visual notifications devices is continually
monitored on the GUI.
Eaton’s MNS is customizable and
the modular and scalable system is
easily expanded in phases by leveraging
existing systems. It can be built
one layer at a time, starting with an
emergency text alerting system or an
outdoor Giant Speaker system. It offers
options to add later including integrating
the different layers as funds
A Premier Portfolio
Eaton provides industrial customers
with broadened engineering capabilities
and a premier portfolio of solutions.
Peru LNG tapped the company
to implement best-in-class products for
enhanced reliability and safety.
With more than 100 years of life safety
and mass notification expertise, Eaton
was chosen to supply the equipment due
to its ability to meet Peru LNG’s stringent
safety and reliability application requirements—
with a complete portfolio
of solutions designed to deliver critical
alerts when it matters most.
The WAVES system meets all of the
Peru LNG requirements, and complies
with all the applicable codes and standards
which include the National Fire
Alarm Code (NFPA 72), Life Safety
Code (NFPA 101) and the National
Electrical Code (NFPA 70).
“The system has effectively been
helping to protect Peru LNG by providing
real-time information to all
plant occupants in emergency situations
since 2010,” said Jean Montano
Pereira, ICCS engineer, Peru LNG.
Eaton’s layered MNS are designed
to alert, warn and inform people within
seconds of what to do in the event of
an emergency or disaster, whether natural
or man-made. The MNS broadcast
live and recorded voice messages, safety
sirens, visual and audible alerts via secure
networks that continue to operate
during any disaster so that those in
immediate threat areas can be alerted
quickly and accurately.
Eaton develops advanced technological
solutions for the rapidly growing
mass notification market, where
intelligible, reliable and redundant
communications are paramount to support
Peru LNG can now provide broadcast
voice messages, tones and sirens,
covering large areas with crisp intelligible
warnings. Eaton offers industry veterans
with engineering expertise who
fully understand Peru LNG’s business
challenges. The Eaton team includes
application-specific experts with a track
record of solving
This article originally appeared in the September 2015 issue of Security Today.