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March 2, 2003

                             ET NEWS
================================================================
        NEWS AND INFORMATION FOR ENGINEERING TECHNICIANS
----------------------------------------------------------------
Issue No. 88           http://www.etnews.org            3-2-2003
================================================================

Contents
--------
- News
- ET Journal
- NICET Test Dates
- AFAA Class Schedule
- Comments & Acknowledgements

================================================================
NEWS
================================================================

My-lovely-wife-Cynthia and I extended our stay in Honolulu and
had an absolutely wonderful time. It was a lot more fun for me
this time around than it was when I was stationed at Pearl Harbor
in the 1970's. There is a stark difference between living on
Waikiki and living in off-base military housing! This was
Cynthia's first visit and now she doesn't want to leave!

Ho'ohau'oli!

Mike

================================================================
ET JOURNAL
================================================================

NICET Fire Alarm Systems Level III
35008 ALARM NOTIFICATION APPLIANCES
-----------------------------------

35008 is a Level III General Core Work element.

General Work Elements are categorized as either Core or Non-Core
Work Elements. All Level III General Core Work Elements
constitute a mandatory requirement for achieving certification at
Levels III and IV.

35008 DESCRIPTION
Understand audible, visible, and combination alarm notification
appliances and their application, including such concepts as
alarm by zone, alarm signal coordination with other systems in
the building, visual and tactile alarm appliances for the
handicapped, attenuation of audible signals by distance and
building partitions, background noise considerations, and
recommended signal levels above ambient.
(NFPA 72 and 101, ANSI S 12.31)

35008 REFERENCES:
NFPA 72
http://www.nfpa.org/catalog/product.asp?category%5Fname=&pid=7299

NFPA 101
http://www.nfpa.org/catalog/product.asp?category%5Fname=&pid=10100

ANSI S12.31
http://global.ihs.com/doc_detail.cfm?currency_code=USD&customer_
id=21254E2E400A&shopping_cart_id=2725382324495048405A3020250A&co
untry_code=US&lang_code=ENGL&item_s_key=00122252&item_key_date=0
91231&input_doc_number=ANSI%20S12%2E31&input_doc_title=

35008 DESCRIPTION BREAKDOWN:
"Understand audible, visible, and combination alarm notification
appliances and their application, including such concepts as
alarm by zone, alarm signal coordination with other systems in
the building, visual and tactile alarm appliances for the
handicapped, attenuation of audible signals by distance and
building partitions, background noise considerations, and
recommended signal levels above ambient."

Audible fire alarm notification appliances produce signals that
are distinctive from audible signals used for other purposes in
the same building. Audible and visible fire alarm notification
appliances are only to be used for the fire alarm system or other
emergency purposes. The operation of fire alarm notification
appliances takes precedence over all other signals.

Where a standard evacuation signal is required it must be the
standard temporal evacuation signal in accordance with NFPA 72
and defined by ANSI S3.41.

A textual signal is an audible or visible signal conveying a
stream of information. A voice message is an example of an
audible textual signal.

Audible signals in the public mode must have a sound level of not
less than 75dBA at 10 feet, nor more than 120 dBA at the minimum
hearing distance. The minimum for the private mode is 45dBA at 10
feet. The audible signal is to be 15dBA above the ambient noise;
this is approximately 30 times greater. Wall mounted audible
appliances will have their tops at heights of not less than 90"
above the floor and below the ceiling of not less than 6".

Bells, horns, chimes, buzzers, siren, and speakers may be used
for audible signals.

Horns are generally louder and more distinctive than bells.

Chimes are usually used where panic or other undesirable actions
might result from the use of loud signals.

Buzzers are seldom used for alarms and are generally used to
indicate trouble.

Speakers can reproduce a variety of tones as well as live or
recorded voice instructions.

Where combination wall mounted audible/visual appliances are
installed, the location of the appliance is determined by the
visual requirements.

There are two methods of visible signaling. One is the direct
viewing of illuminated appliance; the other is the illumination
of surrounding area.

NFPA stipulates the flash rate of visible notification appliances
to be no less than 1 Hz and no more than 2 Hz. The light source
is to be clear or nominal white and the output is not to exceed
1000 candela. The intended viewer should be able to discern that
a visible appliance is illuminated, regardless of the viewer's
orientation. The entire lens of a wall-mounted visible
notification appliance will be no less than 80" and no more than
96" above the floor level. There is to be a separation of no more
than 100 feet between devices. In corridor applications, visible
appliances are to be located no more than 15 feet from the end
of the corridor.

NFPA 72-1999 4-4.4.2.2 Visible appliances in corridors must be
located no more than 15 feet from the end of the corridor with a
separation not greater than 100 feet between appliances. If
there is an interruption of the concentrated viewing path, such
as a fire door, an elevation change, or any other obstruction,
the area will be treated as a separate corridor.

If a 1-watt input to an audible notification appliance produces
an output sound pressure level of 85 dBA, an input of 2 watts
(double the power) will result in an output of 88 dBA.

Double the input power - Add 3 dBA sound pressure output.

NFPA 72-1999 4-3.5.1 Where ceiling heights allow, wall-mounted
audible notification appliances will be installed such that their
tops are above the finished floors not less than 90 inches and
below the finished ceiling of not less than 6 inches.

NEMA TMOFAS-1997 5.3.3 Chimes are soft-toned appliances. They are
used in areas where panic or other undesirable actions might
result from the use of loud audible alarm signals. Their use is
especially adaptable to such areas as nurses’ stations in
hospitals to alert only authorized personnel (Private Mode). They
may be operated by alternating or direct current.

NFPA 72-1999 Table 4-4.4.1.1(a) 60 candela is the minimum
effective intensity required for a single, wall-mounted strobe
light installed in a 40 feet by 40 feet square room.

NFPA 72-1999 1-5.8.1 All means of interconnecting equipment,
devices, appliances and wiring connections will be monitored for
integrity such that the occurrence of a single open or a single
ground-fault condition in the installation conductors or other
signaling channels and their restoration to normal will be
automatically indicated within 200 seconds.

If a single open-circuit (fault) exists in a notification
appliance circuit (NAC), the following performance will be
observed at the protected premises:

Style W – The affected circuit will indicate a trouble condition
and no appliances beyond the fault will operate during the fault
condition. If the fault exists between the fire alarm control
panel and the first notification appliance, none of the
appliances will operate in an alarm condition.

Style X – The affected circuit will indicate a trouble condition
and all appliances will continue to operate during the fault
condition.

Style Y – The affected circuit will indicate a trouble condition
and no appliances beyond the fault will operate during the fault
condition. If the fault exists between the fire alarm control
panel and the first notification appliance, none of the
appliances will operate in an alarm condition.

Style Z – The affected circuit will indicate a trouble condition
and all appliances will continue to operate during the fault
condition.

If a single short-circuit (fault) exists in a notification
appliance circuit (NAC), the following performance will be
observed at the protected premises:

Style W – The affected circuit will indicate a trouble condition
and no appliances beyond the fault will operate during the fault
condition. If the fault exists between the fire alarm control
panel and the first notification appliance, none of the
appliances will operate in an alarm condition.

Style X – The affected circuit will indicate a trouble condition
and no appliances beyond the fault will operate during the fault
condition. If the fault exists between the fire alarm control
panel and the first notification appliance, none of the
appliances will operate in an alarm condition.

Style Y – The affected circuit will indicate a trouble condition
and all appliances will continue to operate during the fault
condition.

Style Z – The affected circuit will indicate a trouble condition
and all appliances will continue to operate during the fault
condition.

NFPA 101-1997 7-6.3.5 When used, the general evacuation alarm
signal will operate throughout the entire building.
Except where total evacuation of occupants is impractical due to
building configuration, only the occupants in the affected zones
are to be initially notified. Provisions will be made to
selectively notify occupants in other zones to afford orderly
evacuation of the entire building and except where occupants are
incapable of evacuating themselves because of age, physical or
mental disabilities, or physical restraint, the private operating
mode as describe in NFPA 72, National Fire Alarm Code, is be
permitted to be used. Only the attendants and other personnel
required to evacuate occupants from a zone, area, floor, or
building are required to be notified. This notification includes
the means to readily identify the zone, area, floor, or building
in need of evacuation and except notification within the covered
mall in accordance with NFPA 101 24-4.4.3.3 and 25-4.4.3.3.

NFPA 72-1999 4-3.3.1 Audible signals intended for operation in
the private mode will have a sound pressure level of not less
than 45 dBA at 10 feet nor more than 120dBA at the minimum
hearing distance from the audible appliance.

NFPA 72-1999 4-4.2 The flash rate of visible notification
appliances will not exceed two flashes per second (2 Hz) nor be
less than one flash every second (1 Hz) throughout the listed
voltage range of the visible notification appliance.

Loud speakers operating on the floor of the alarm, one floor
below, and one floor above is representative of a notification
appliance operating in the public mode for an alarm condition.

If an audible notification appliance produces 90 decibels on the
A-weighted scale measured at 10 feet from the appliance, the
sound pressure level measured in the corridor at 20 feet from the
appliance will be approximately 84.

Double the distance from an appliance - Loose 6 dB (anechoic)


THE INFORMATION HEREIN IS PROVIDED AS A GUIDE ONLY AND IS
INTENDED TO ASSIST YOU IN PREPARING FOR AN EXAM. IT IS NOT
INTENDED TO BE INCLUSIVE OF ALL INFORMATION THAT MAY BE ON AN
EXAM BUT RATHER IT IS INTENDED TO BE A SMALL SAMPLE OF THE KIND
OF MATERIAL THAT YOU MAY BE EXPECTED TO KNOW.

================================================================
NICET TEST DATES
================================================================

OREGON
------
OR1 PCC Sylvania, Portland;
Test 4/26/03. Postmark deadline 3/8/03.
Test 7/26/03. Postmark deadline 6/7/03.

OR2 Clackamas Community College, Oregon City;
Test 3/15/03. Postmark deadline 2/1/03.
Test 6/21/03. Postmark deadline 5/3/03.

WASHINGTON
----------
WA1 Bates Technical College, Tacoma;
Test 5/17/03. Postmark deadline 3/29/03.
Test 7/26/03. Postmark deadline 6/7/03.

WA2 Walla Walla Community College;
Test 5/17/03. Postmark deadline 3/29/03.
Test 9/27/03. Postmark deadline 8/9/03.

WA3 Spokane Community College;
Test 5/17/03. Postmark deadline 3/29/03.
Test 8/23/03. Postmark deadline 7/7/03.

These dates are from the NICET web site. For a complete list of
all test centers and test dates, visit:
http://63.70.211.210/cfdocs/nicetschedule.cfm

================================================================
AFAA CLASS SCHEDULE
================================================================

------------------
March 11-13, 2003 Deerfield Beach, FL (Ft. Lauderdale)
------------------
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/IntFA_Deerfield_March2003.pdf

------------------
March 17-20, 2003 Oakland, CA - Sponsored by CAFAA
------------------
Fire Alarm System Testing and Inspection Seminar.
http://www.afaa.org/afaa/PDF/ADV_TI_Oakland_Mar2003.pdf
Advanced Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/ADV_TI_Oakland_Mar2003.pdf

------------------
March 25-26, 2003 Las Vegas, NV - Sponsored by ISC West
------------------
Fire Alarm System Testing and Inspection Seminar.
http://www.nsca.org/nscaweb/content/expo2003/attendee/class.asp?
t=4&document=854

------------------
April 7-9, 2003 New Orleans, LA - Sponsored by LA AFAA
------------------
Advanced Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/ADV_NewOrleans_April2003.pdf

------------------
April 22-24, 2003 Richmond, VA - Sponsored by VA AFAA
------------------
Advanced Fire Alarm Seminar.
More information will be available soon!

------------------
April 22-24, 2003 Boise, ID
------------------
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/IntFA_Boise_April2003.pdf

------------------
April 29-30 & May 1, 2003 Seattle, WA
------------------
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/IntFA_Seattle_April2003.pdf

------------------
May 5-8, 2003 Anaheim, CA - Sponsored by CAFAA
------------------
Fire Alarm System Testing and Inspection Seminar.
http://www.afaa.org/afaa/PDF/INT_TI_CAFAA_ANAHEIM_May2003.pdf
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/INT_TI_CAFAA_ANAHEIM_May2003.pdf

------------------
May 6-8, 2003 Chicago, IL
------------------
More information will be available soon!

================================================================
COMMENTS AND ACKNOWLEDGEMENTS
================================================================

ET News is published weekly and if possible, delivered on Sunday

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----------------------------------------------------------------
The NICET acronym found herein refers to: http://www.nicet.org
NATIONAL INSTITUTE FOR CERTIFICATION IN ENGINEERING TECHNOLOGIES
----------------------------------------------------------------
The AFAA acronym found herein refers to: http://www.afaa.org
AUTOMATIC FIRE ALARM ASSOCIATION "AFAA is celebrating 50 years!"
----------------------------------------------------------------
Some information may be found within this email message that is
reprinted with permission from one or more of the following;
NFPA 70 National Electrical Code(r), NFPA 72 National Fire Alarm
Code(r), and NFPA 101(r) Life Safety Code(r), Copyright(c) NFPA,
Quincy, MA  02269. This reprinted material is not the complete
and official position of the NFPA on the referenced subject,
which is represented only by the standard in its entirety.
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This reprinted material is not the complete and official position of the NFPA on the referenced subject, which is represented only by the standard in its entirety.