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March 16, 2003

                             ET NEWS
================================================================
        NEWS AND INFORMATION FOR ENGINEERING TECHNICIANS
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Issue No. 90           http://www.etnews.org           3-16-2003
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Contents
--------
- News
- ET Journal
- NICET Test Dates
- AFAA Class Schedule
- Comments & Acknowledgements

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

If you plan to attend ISC-West this year, stop by the AFAA booth
#12109S and say hi!

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See you in Oakland this week.

Have fun!

Mike

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

NICET Fire Alarm Systems Level III
35010 STYLES OF CIRCUITS
----------------------------------

35010 is a Level III General Non-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.

35010 DESCRIPTION
Based upon their ability to indicate alarm and trouble at the
central control equipment during specified abnormal conditions,
identify the different styles of initiating device, signaling
line, and notification appliance circuits, and know how they
work. Understand the relationship between styles of circuits and
Class "A" and "B" circuits. (NFPA 72)

35010 REFERENCES:
NFPA 72
http://www.nfpa.org/catalog/product.asp?category%5Fname=&pid=7299

35010 DESCRIPTION BREAKDOWN:
"Based upon their ability to indicate alarm and trouble at the
central control equipment during specified abnormal conditions,
identify the different styles of initiating device, signaling
line, and notification appliance circuits, and know how they
work. Understand the relationship between styles of circuits and
Class "A" and "B" circuits."

Initiating circuits, notification appliance, and signaling line
circuits are designated by class or style or both.

Class A circuits are capable of transmitting an alarm signal
during a single open or a non-simultaneous single ground fault
in a circuit conductor.

Class B circuits are not capable of transmitting an alarm beyond
the location of a single open or single non-simultaneous ground
fault in a circuit.

A fault in a Class A or Class B circuit will result in a trouble
condition on the fire alarm system.

Initiating device circuits are permitted to be designated as
either Style A, B, C, D, or E depending upon the circuit’s
ability to meet the alarm and trouble performance requirements
described in NFPA 72, Table 3-5.1.

Notification appliance circuits are permitted to be designated as
Style W, X, Y, or Z based upon the circuit’s fault tolerance.

A signaling line circuit is permitted to be designated as Style
0.5, 1, 2, 3, 4, 4.5, 5, 6, or 7 based upon the circuit’s ability
to operate under a fault condition.

All Class A circuits using physical conductors are to be
installed such that the outgoing and return conductors are routed
separately from the control unit and are not to be run in the
same raceways. (There are some exceptions. See NFPA 72 3-4.2).

Class A circuits are considered more reliable than Class B
circuits because they remain fully operational during a single
open or single non-simultaneous ground-fault. Neither Class A nor
Class B remains operational with a wire-to-wire short.

Refer to NFPA 72 Table 3-5.1, 3-6.1, and 3-7.1 for circuit
capabilities.

A four-wire fire alarm system is the least likely type of fire
alarm system to have initiating device / control panel
compatibility problems.

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.

Style D and E initiating device circuits meet the minimum
performance requirements of a Class A circuit. A Style E IDC
exceeds the minimum requirements of a Class A IDC.

NFPA-1999 1-4 Signaling Line Circuit (SLC). A circuit or path
between any combination of circuit interfaces, control units, or
transmitters over which multiple system input signals or output
signals, or both, are carried.

Signaling Line Circuit Interface (SLCI). A system component that
connects a signaling line circuit to any combination of
initiating devices, initiating device circuits, notification
appliances, notification appliance circuits, system control
outputs, and other signaling line circuits.

A Style 7 SLC is able to report an alarm condition during a
wire-to-wire short.


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 6/21/03. Postmark deadline 5/3/03.
Test 9/27/03. Postmark deadline 8/9/03.

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

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

------------------
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.iscwest.com/App/homepage.cfm?linkid=7623&moduleid=331
&speakerdetails=speakerdetails&pram=15433&appname=180&date=03/25
/2003

------------------
April 1-3, 2003 Phoenix, AZ - Sponsored by AZ AFAA
------------------
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/IntFA_PHX_April2003.pdf

------------------
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.
http://www.afaa.org/afaa/PDF/ADV_Richmond_Apr2003.pdf

------------------
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
------------------
Advanced Fire Alarm Seminar.
More information will be available soon.

------------------
May 13-15, 2003 Billings, MT
------------------
Intermediate Fire Alarm Seminar.
More information will be available soon.

------------------
June 9-12, 2003 Sacramento, CA - Sponsored by CAFAA
------------------
Fire Alarm System Testing and Inspections Seminar
Intermediate Fire Alarm Seminar
More information will be available soon.

------------------
June 10-12, 2003 Alexandria, LA - Sponsored by LA AFAA
------------------
Automatic Fire Detection and Fire Alarm Systems Seminar (Fund.)
Fire Alarm System Testing and Inspections Seminar
More information will be available soon.

------------------
June 17-19, 2003 Las Vegas, NV
------------------
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/IntFA_LasVegas_June2003.pdf

------------------
July 14-17, 2003 Anaheim, CA - Sponsored by CAFAA
------------------
Plan Review Seminar
Intermediate Fire Alarm Seminar
More information will be available soon.

------------------
September 15-18, 2003 Oakland, CA - Sponsored by CAFAA
------------------
Plan Review Seminar
Intermediate Fire Alarm Seminar
More information will be available soon.

------------------
September 16-18, 2003 Boston, MA - Sponsored by New England AFAA
------------------
Fire Alarm System Testing and Inspections Seminar
Automatic Fire Detection and Fire Alarm Systems Seminar (Fund.)
More information will be available soon.

------------------
September 22-25, 2003 Lafayette, LA - Sponsored by LA AFAA
------------------
Fire Alarm System Testing and Inspections Seminar
Intermediate Fire Alarm Seminar
More information will be available soon.

------------------
October 15-17, 2003 Boston, MA - Sponsored by New England AFAA
------------------
Intermediate Fire Alarm Seminar
More information will be available soon.

------------------
November 3-6, 2003 Anaheim, CA - Sponsored by CAFAA
------------------
Plan Review Seminar
Advanced Fire Alarm Seminar
More information will be available soon.

------------------
November 4-7, 2003 Boston, MA - Sponsored by New England AFAA
------------------
Advanced Fire Alarm Seminar
More information will be available soon.

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

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

ET News website http://etnews.org by: http://metrodenver.org

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!"
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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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Some information may be found within this web site that is reprinted with permission from one or more of the following: NFPA 70 National Electrical Code®,NFPA 72® National Fire Alarm Code®, & NFPA 101® Life Safety Code®, Copyright© 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.