Archives 2003
Issue No. 80
Issue No. 81
Issue No. 82
Issue No. 83
Issue No. 84
Issue No. 85
Issue No. 86
Issue No. 87
Issue No. 88
Issue No. 89
Issue No. 90
Issue No. 91
Issue No. 92
Issue No. 93
Issue No. 94
Issue No. 95
Issue No. 96
Issue No. 97
Issue No. 98
Issue No. 99
Issue No. 100
Issue No. 101
Issue No. 102
Issue No. 103
Issue No. 104
Issue No. 105
Issue No. 106
Issue No. 107
Issue No. 108
Issue No. 109
Issue No. 110
Issue No. 111
Issue No. 112
Issue No. 113
Issue No. 114
Issue No. 115
Issue No. 116
Issue No. 117
Issue No. 118
Issue No. 119
Issue No. 120
Issue No. 121
Issue No. 122
Issue No. 123
Issue No. 124
Issue No. 125
Issue No. 126
Issue No. 127
Issue No. 128
Issue No. 129
Issue No. 130
Issue No. 131

  Log In

 

March 23, 2003

                             ET NEWS
================================================================
        NEWS AND INFORMATION FOR ENGINEERING TECHNICIANS
----------------------------------------------------------------
Issue No. 91           http://www.etnews.org           3-23-2003
================================================================

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!

----------------------------------------------------------------

See you in Sodom and Gomorrah er... Las Vegas this week.

Have fun!

Mike

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

NICET Fire Alarm Systems Level III
35011 SYSTEM AND COMPONENT COMPATIBILITY
----------------------------------------

35011 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.

35011 DESCRIPTION
Understand the need for system compatibility between components, such as two-wire
smoke detectors and a two-wire initiating circuit, supplementary smoke detector
relays, and the system control equipment. Know whether all components of the fire
alarm system have been properly tested for compatibility by a testing lab.
(Fire Alarm Signaling Systems and UL 217, 268, 268A, 864)


35011 REFERENCES:
Fire Alarm Signaling Systems
http://www.nfpa.org/catalog/product.asp?category%5Fname=&pid=fass94

UL 217
http://global.ihs.com/doc_detail.cfm?currency_code=USD&customer_id=2125402B5B0A&
shopping_cart_id=2725585B2E4A30484D594020220A&country_code=US&lang_code=ENGL&ite
m_s_key=00097011&item_key_date=021010&input_doc_number=ul%20217&input_doc_title=

UL 268
http://global.ihs.com/doc_detail.cfm?currency_code=USD&customer_id=21254F2C5B0A&
shopping_cart_id=2725585B2E4A30484D5940202B0A&country_code=US&lang_code=ENGL&ite
m_s_key=00097029&item_key_date=030001&input_doc_number=ul%20268&input_doc_title=

UL 268A
http://global.ihs.com/doc_detail.cfm?currency_code=USD&customer_id=21254C2C5C0A&
shopping_cart_id=2725585B2E4A30484D594020200A&country_code=US&lang_code=ENGL&ite
m_s_key=00097031&item_key_date=010716&input_doc_number=ul%20268a&input_doc_title
=

UL 864
http://global.ihs.com/doc_detail.cfm?currency_code=USD&customer_id=2125423E4C0A&
shopping_cart_id=2725585B2E4A30484D594020260A&country_code=US&lang_code=ENGL&ite
m_s_key=00097267&item_key_date=030104&input_doc_number=ul%20864&input_doc_title=

35011 DESCRIPTION BREAKDOWN:
"Understand the need for system compatibility between components, such as
two-wire smoke detectors and a two-wire initiating circuit, supplementary smoke
detector relays, and the system control equipment. Know whether all components of
the fire alarm system have been properly tested for compatibility by a testing
lab."

Most conventional initiating device circuits are current sensitive, which
indicate alarm and trouble signals by sensing the changes in current present in
a circuit. An alarm condition is indicated by an increase in circuit current and
a trouble condition is indicated by a decrease in current. Additionally, as the
current changes on an IDC so does voltage.

Because of the nature of IDC’s it is imperative that only compatible,
cross-listed devices are used. Use of noncompatible devices can cause a variety
of problems including false alarms, non-operational devices, loss of supervision,
etc. The exact nature of the problem will depend upon the electrical
characteristics of the device and the IDC.

Two-wire smoke detectors with supplementary relays are very sensitive to voltage
and current limitations. Usually, an IDC provides enough power to energize one
detector with a relay at one time. Where an individual alarm-initiating device
(e.g. smoke detector) is used to control the operation of equipment
(e.g. elevator recall), this control capability is to remain operable even if
all of the initiating devices on the IDC are in alarm.

Four-wire detectors that derive power independent of the initiating device
circuit usually do not have a compatibility problem. The devices are, however,
required to be listed for their intended use  and connected such that a trouble
in one device does not impair the alarm transmission from any other initiating
device. This is usually done with an end-of-line power-supervision relay
installed with its NC (with power applied) contacts in series with the individual
trouble contacts in each device and the end-of-line resistor.

Due to the unique signaling characteristic of addressable system devices, most
addressable devices will only work on the respective manufacturer’s control unit
and then only after they have been enrolled into the system (i.e. programmed).

Tamper switches are generally not polarity-sensitive.

The correct use of EOL (end-of-line) devices is essential for proper system
operation.
 

NFPA 72-1999 3-8.3.2.3.1 Systems equipped with alarm verification features are
permitted under the following conditions:
 o The alarm verification feature is not initially enabled unless conditions or
 occupant activities that are expected to cause nuisance alarms are anticipated
 in the area that is protected by the smoke detectors. Enabling of the alarm
 verification feature will be protected by password or limited access.

 o A smoke detector continuously subjected to a smoke concentration above alarm
   threshold does not delay the system functions of 1-5.4 by more than 1 minute.

 o Actuation of an alarm-initiating device other than a smoke detector causes the
   system functions of 1-5.4 without additional delay.

When the alarm verification feature is enabled, disabled, or changed, the
comments section of the Record of Completion (Figure 1-6.2.1 item 10) will be
used to record the status or change to system operation.

For smoke detector / control panel compatibility information, refer to the NRTL
(Nationally Recognized Testing Laboratory), the smoke detector manufacturer, and
the fire alarm control panel manufacturer.

In non-addressable, two-wire fire alarm systems, compatibility is generally not
a concern for devices other than smoke detectors, such as manual stations, water
flow switches, and supervisory devices.

Connecting more smoke detectors to a conventional two-wire initiating device
circuit than is recommended by the manufacturer may result in non-operation
(failure to report an alarm condition) or it may result in a circuit (zone)
trouble condition or it may result in unpredictable circuit behavior.

The most common cause of incompatibility between a fire alarm control panel and
two-wire smoke detectors is the detector’s operating voltage.

Depending upon the manufacturer, an end-of-line device used to supervise a
circuit may be a resistor or capacitor or diode.


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

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

------------------
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 (Fundamentals)
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 (Fundamentals)
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!"
----------------------------------------------------------------
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.
================================================================
                 Michael Baker & Associates Inc
503-657-8888 v | PO Box 737, Gladstone OR 97027 | 503-655-1014 f
----------------------------------------------------------------
ET News Copyright(c) 2003 by Michael B Baker all rights reserved
Send a link to a friend        
 

 

Home - Clients - Book Store - NICET Level I - NICET Level II - NICET Level III - NICET Level IV - Glossary - External Links - Licensing - Photographs - Employment - Disney Crud(SM) - Archives 2001 - Archives 2002 - Archives 2003 - Archives 2004 - Archives 2005 - Archives 2006 - Archives 2007 - Archives 2008 - Archives 2009 - Archives 2010 - Archives 2011 - Archives 2012 - Archives 2013 - Misc

ET NewsSM content copyright © 2017
by Michael B. Baker. All rights reserved.
ISSN 1554-074X

RSS Content
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.