Archives 2002
Issue No. 28
Issue No. 29
Issue No. 30
Issue No. 31
Issue No. 32
Issue No. 33
Issue No. 34
Issue No. 35
Issue No. 36
Issue No. 37
Issue No. 38
Issue No. 39
Issue No. 40
Issue No. 41
Issue No. 42
Issue No. 43
Issue No. 44
Issue No. 45
Issue No. 46
Issue No. 47
Issue No. 48
Issue No. 49
Issue No. 50
Issue No. 51
Issue No. 52
Issue No. 53
Issue No. 54
Issue No. 55
Issue No. 56
Issue No. 57
Issue No. 58
Issue No. 59
Issue No. 60
Issue No. 61
Issue No. 62
Issue No. 63
Issue No. 64
Issue No. 65
Issue No. 66
Issue No. 67
Issue No. 68
Issue No. 69
Issue No. 70
Issue No. 71
Issue No. 72
Issue No. 73
Issue No. 74
Issue No. 75
Issue No. 76
Issue No. 77
Issue No. 78
Issue No. 79

  Log In

 

June 16, 2002

                            ET News
================================================================
                NEWS FOR ENGINEERING TECHNICIANS
----------------------------------------------------------------
Volume 2 Issue 24                                      6-16-2002
================================================================

Contents
--------
- News
- ET Journal
- Test Dates
- Class Schedule
- Administrivia

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

The Automatic Fire Alarm Association will be in Portland on June 20 and
21 for a long range planning session. Members of the AFAA Board of
Directors http://www.afaa.org/afaa/AFAA_BOD.asp are invited to the June
20 meeting. The June 21 meeting is open to all AFAA members. It will be
held at the Riverplace Hotel, 1510 SW Harbor Way, Portland OR 97201
http://www.riverplacehotel.com/ from 8 a.m. until 3 p.m. If you plan to
attend the June 21 meeting, please let Larry Neibauer know by sending
him an email message mailto:presafaa@aol.com.

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

NICET Fire Alarm Systems Level II
33008 POWER SUPPLIES
---------------------------------

I understand that *many* people have had trouble with this element in
the past. I also understand that NICET has repaired some of the test
questions that may have been problematic in the past.

33008 is a Level II General Core Work element.

All Level II General Core Work Elements constitute a mandatory
requirement for achieving certification at Levels III and IV.

33008 DESCRIPTION
Know the required primary (main), secondary (standby) and trouble power
supply sources for each type of fire alarm system. Calculate the size
storage battery needed to supply a given system for various standby
times. (NFPA 70 ,72, 101 and 110 Fire Alarm Signaling Systems)

33008 REFERENCES:
NFPA 70
http://www.nfpa.org/catalog/product.asp?category%5Fname=&pid=7099sb
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
NFPA 110
http://www.nfpa.org/catalog/product.asp?category%5Fname=&pid=11099
FASS (Fire Alarm Signaling Systems)
http://www.nfpa.org/catalog/product.asp?category%5Fname=&pid=fass94

33008 DESCRIPTION BREAKDOWN:
"Know the required primary (main), secondary (standby) and trouble power
supply sources for each type of fire alarm
system.
NFPA 72-1999 1-5.2.6 Secondary Supply Capacity and Sources. The
secondary supply will automatically supply the energy to the system
within 30 seconds, and without loss of signals, wherever the primary
supply is incapable of providing the minimum voltage required for proper
operation. The secondary (standby) power supply will supply energy to
the system in the event of total failure of the primary (main) power
supply or when the primary voltage drops to a level insufficient to
maintain functionality of the control equipment and system components.
Under maximum normal load, the secondary supply will have sufficient
capacity to operated a protected premises, central station, or
proprietary system for 24 hours, or an auxiliary or remote station
system for 60 hours; and at the end of that period, will be capable of
operating all alarm notification appliances used for evacuation or to
direct aid to the location of an emergency for 5 minutes. The secondary
power supply for emergency voice/alarm communications service will be
capable of operating the system under maximum normal load for 24 hours
and then will be capable of operating the system during a fire, or other
emergency condition for a period of 2 hours. Fifteen minutes of
evacuation alarm operation at maximum connected load will be considered
the equivalent of 2 hours of emergency operation.

For a combination system, the secondary supply capacity required above
will include the load of any non-fire related equipment, functions, or
features which are not automatically disconnected upon transfer of
operating power to the secondary supply.

The secondary supply will consist of one of the following;

(a) A storage battery arranged in accordance with 1-5.2.9;

(b) An automatic starting, engine-driven generator arranged in
accordance with 1-5.2.10 and storage batteries with 4 hours of capacity
arranged in accordance with 1-5.2.9;

(c) Multiple engine-driven generators, one of which is arranged for
automatic starting, arranged in accordance with 1-5.2.10, and capable of
supplying the energy required herein, with the largest generator out of
service. The second generator is permitted to be started by pushbutton.

Operation on secondary power will not affect the required performance of
a fire alarm system. The system will produce the same alarm,
supervisory, and trouble signals and indications (excluding the ac power
indicator) when operating from the standby power source as are produced
when the unit is operating form the primary power source.

NFPA 72-1999 1-5.2.3 Power Supplies. Fire alarm systems will be provided
with at least two independent and reliable power supplies, one primary
and one secondary (standby), each of which will be of adequate capacity
for the application.

Where the primary power is supplied by a dedicated branch circuit of an
emergency system in accordance with NFPA 70, National Electrical Code,
Article 700, or a legally required standby system in accordance with
NFPA 70, National electrical Code, Article 701, a secondary supply is
not required.

Where the primary power is supplied by a dedicated branch circuit of an
optional standby system in accordance with NFPA 70, National Electrical
Code, Article 702, which also meets the performance requirements of
Article 700 or Article 701, a secondary supply is not required.

Where dc voltages are employed, they are to be limited to no more than
350 volts above earth ground.

NFPA 72-1999 1-5.2.4 Primary Supply. The primary supply will have a high
degree of reliability, will have adequate capacity for the intended
service, and will consist of one of the following:

(a) Light and power service arranged in accordance with 1-5.2.5;

(b) Where a person specifically trained in its operation is on duty at
all times, an engine-driven generator or equivalent arranged in
accordance with 1-5.2.10.

NFPA 72-1999 1-5.2.5.1 A light and power service employed to operate the
system under normal conditions will have a high degree of reliability
and capacity for the intended service. This service will consist of one
of the following:

(a) Two-Wire Supplies. A two-wire supply circuit is permitted to be used
for either the primary operating power supply or the trouble signal
power supply of the signaling system.

(b) Three-Wire Supplies. A three-wire ac or dc supply circuit having a
continuous unfused neutral conductor, or a polyphase ac supply circuit
having a continuous unfused neutral conductor where interruption of one
phase does not prevent operation of the other phase, will be permitted
to be used with one side or phase for the primary operating power supply
and the other side or phase for the trouble signal power supply of the
fire alarm system.

NFPA 72-1999 1-5.2.5.2 Connections to the light and power service is to
be on a dedicated branch circuit(s). The circuit(s) and connections will
be mechanically protected. Circuit disconnecting means will have a red
marking, will be accessible only to authorized personnel, and will be
identified as FIRE ALARM CIRCUIT CONTROL. The location of the circuit
disconnecting means will be permanently identified at the fire alarm
control unit.

NFPA 72-1999 1-5.2.5.3 Overcurrent Protection. An overcurrent protection
device of suitable current-carrying capacity and capable of interrupting
the maximum short-circuit current to which it may be subject is to be
provided in each ungrounded conductor. The overcurrent protective device
will be enclosed in a locked or sealed cabinet located immediately
adjacent to the point of connection to the light and power conductors.

NFPA 72-1999 1-5.2.5.4 Circuit breakers or engine stops are not be
installed in such a manner as to cut off the power for lighting or for
operating elevators.

NFPA 72-1999 1-5.2.7 Continuity of Power Supplies.
(a) Where signals could be lost on transfer of power between the primary
and secondary sources, rechargeable batteries of sufficient capacity to
operate the system under maximum normal load for 15 minutes will assume
the load in such a manner that no signals are lost where either of the
following conditions exists:
  (1) Secondary power is supplied in accordance with 1-5.2.6(a) or
1-5.2.6(b), and the transfer is made manually; or
  (2) Secondary power is supplied in accordance with 1-5.2.6(c).
(b) Where signals will not be lost due to transfer of power between the
primary and secondary sources, one of the following arrangements are to
be made:
  (1) The transfer will be automatic.
  (2) Special provisions are to be made to allow manual transfer within
30 seconds of loss of power.
  (3) The transfer is to be arranged in accordance with 1-5.2.6(a).
(c) Where a computer system of any kind or size is used to receive or
process signals, an uninterruptible power supply (UPS) with sufficient
capacity to operate the system for at least 15 minutes. Or until the
secondary supply is capable of supplying the UPS input power
requirements, is required where either of the following conditions
apply:
  (1) The status of signals previously received will be lost upon loss
of power.
  (2) The computer system cannot be restored to full operation within 30
seconds of loss of power.
(d) A positive means for disconnecting the input and output of the UPS
system while maintaining continuity of power supply to the load is to be
provided.

NFPA 72-1999 1-5.2.8.2 Power supervisory devices are to be arranged so
as not to impair the receipt of fire alarm or supervisory signals.

NFPA 72-1999 1-5.2.9.2.1 Battery Charging. Adequate facilities are to be
provided to automatically maintain the battery fully charged under all
conditions of normal operation and, in addition, to recharge batteries
within 48 hours after fully charged batteries have been subject to a
single discharge cycle as specified in 1-5.2.5.3. Upon attaining a fully
charged condition, the charge rate will not be so excessive as to result
in battery damage.

NFPA 72-1999 1-5.2.9.2.2 Supervising stations are to maintain spare
parts or units available, which will be used to restore failed charging
capacity prior to the consumption of ½ of the capacity of the batteries
for the supervising station equipment.

NFPA 72-1999 1-5.2.9.2.3 Batteries are to be either trickle- or
float-charged.

NFPA 72-1999 1-5.2.9.2.4 A rectifier employed as a battery charging
supply source is to be of adequate capacity. A rectifier employed as a
charging means will be energized by an isolating transformer.

NFPA 72-1999 1-5.2.9.4 Metering. The charging equipment is to provide
either integral meters or readily accessible terminal facilities for the
connection of portable meters by which the battery voltage and charging
current can be determined.

NFPA 72-1999 1-5.2.9.5 Charger Supervision. Supervision means
appropriate for the batteries and charger employed will be provided to
detect a failure of battery charging and initiate a trouble signal in
accordance with 1-5.4.6.

NFPA 72-1999 1-5.2.10.2 Engine-Driven Generator Capacity. The unit is to
be of a capacity that is sufficient to operate the system under the
maximum normal load conditions in addition to all other demands placed
upon the unit, such as those of emergency lighting.

NFPA 72-1999 1-5.2.10.3.1 Engine-Driven Generator Fuel. Fuel is to be
stored in outside underground tanks wherever possible, and gravity feed
is not to be used. If gasoline-driven generators are used, fuel will be
supplied from a frequently replenished "working" tank, or other means
provided, to ensure that the gasoline is always fresh because gasoline
deteriorates with age.

NFPA 72-1999 1-5.2.10.3.2 Sufficient fuel will be available in storage
for 6 months of testing plus the capacity specified in 1-5.2.5. For
public fire alarm reporting systems, the requirements of Chapter 6
applies.

If a reliable source of supply is available at any time on 2-hour
notice, sufficient fuel will be in storage for 12 hours of operation at
full load.

Fuel systems using natural or manufactured gas supplied through reliable
utility mains are not required to have fuel storage tanks unless located
in seismic risk zone 3 or greater as defined in ANSI A-58.1, Building
Code Requirements for Minimum Design Loads in Buildings and Other
Structures.

NFPA 72-1999 1-5.2.10.4 Battery and Charger. A separate storage battery
and separate automatic charger will be provided for starting the
engine-driven generator and will not be used for any other purpose.


"Calculate the size storage battery needed to supply a given system for
various standby times.
You can download my battery-set calculation worksheet here
http://www.etnews.org/docs/battcalc.xls.


Other sources of information:

NFPA 70
-------
Article 480 Storage Batteries
Article 700 Emergency Systems
Article 701 Legally Required Standby Systems
Article 702 Optional Standby Systems
Article 760 Fire Alarm Systems

NFPA 101
--------
(1997 version)
7-1 Utilities 
32-8.4 Emergency Lighting and Standby Power

NFPA 110
--------
2-2 Classification of Emergency Power Supply Systems (EPSS)
2-2.2 Type
2-2.3 Class
2-2.4 Level
3-1.2 seismic areas...
6-4.1 inspections...
6-4.2 gen-sets...

FASS-1994
---------
Chapter 8 Power Supplies


THE INFORMATION IN ET JOURNAL 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
------
PCC Sylvania, Portland;
Test 7/27/02. Postmark deadline 6/8/02.
Test 11/16/02. Postmark deadline 9/28/02.

Clackamas Community College, Oregon City;
Test 6/22/02. Postmark deadline 5/4/02.
Test 9/14/02. Postmark deadline 7/27/02.

WASHINGTON
----------
Bates Technical College, Tacoma;
Test 9/14/02. Postmark deadline 7/27/02.
Test 12/14/02. Postmark deadline 10/26/02.

Walla Walla Community College;
Test 7/25/02. Postmark deadline 6/8/02.
Test 10/19/02. Postmark deadline 8/31/02.

Spokane Community College;
Test 8/24/02. Postmark deadline 7/6/02.
Test 11/16/02. Postmark deadline 9/28/02.

For a complete list of all test centers and test dates, visit
http://63.70.211.210/cfdocs/nicetschedule.cfm

================================================================
CLASS SCHEDULE 
================================================================

OREGON
------
Clackamas Community College is sponsoring a 16-hour NICET Test
Preparation Seminar:

>> 7-13-2002 8 a.m. - 5 p.m. NICET Certification application process and
Fire Alarm Systems Level I Element Review.

>> 7-20-2002 8 a.m. - 5 p.m. Fire Alarm Systems Level II Element Review.

OUTLINE
-------
http://65.108.49.140/docs/outline.pdf

LOCATION
--------
Clackamas Community College
19600 South Molalla Avenue
Oregon City, OR 97045
http://www.clackamas.cc.or.us/maps/campus/

INSTRUCTOR
----------
Michael B. Baker SET
(503) 209-7345
mailto:mbbaker@etnews.org?subject=seminar

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

OREGON
------
OSFAA (Oregon Security and Fire Alarm Association) is sponsoring a
3-hour NICET Introduction:

>> 7-18-2002 1 a.m. - 4 p.m. NICET Certification application process and
Fire Alarm System Fundamentals Review.

LOCATION
--------
LES Expo
Portland Airport Holiday Inn
8439 NE Columbia Boulevard
Portland, Oregon 97220
http://www.rogueweb.com/holidaypa/

INSTRUCTOR
----------
Michael B. Baker SET
(503) 209-7345
mailto:mbbaker@etnews.org?subject=les_expo_seminar

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

WASHINGTON
----------
Dean Reed and Associates is sponsoring a 16-hour NICET Test Preparation
Seminar:

>> 6-22-02 8 a.m. to 5 p.m. NICET Certification application process and
Fire Alarm Systems Level I Element Review.

>> 6-29-02 8 a.m. to 5 p.m. Fire Alarm Systems Level II Element Review.

LOCATION
--------
Pinkerton Systems Integration
15404 53rd Ave South
Seattle, WA 98188
[Near South Center]

INSTRUCTOR
----------
Dean Reed CET
(206) 935-8950 voice/fax
(206) 953-8240 cell
mailto:bubba@oz.net

================================================================
ADMINISTRIVIA
================================================================

The ET Newsletter is also available on the web http://etnews.org

ET News PHP/MySQL site by Doug Hockinson: http://metrodenver.org

Subscribe here ----> mailto:mbbaker@etnews.org?subject=subscribe

Unsubscribe here > mailto:mbbaker@etnews.org?subject=unsubscribe

Send comments: mailto:mbbaker@etnews.org?subject=etnews_comments

Step-by-step guide to NICET Certification in Fire Alarm Systems
http://www.etnews.org/docs/stepbystep.pdf  [requires Acrobat Reader]

================================================================
Some information found in this email message 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) National Fire Protection Association,
Quincy, MA 02269. This reprinted material is not the complete and
official position of the National Fire Protection Association on the
referenced subject, which is represented only by the standard in its
entirety. National Electrical Code(r), NEC(r), National Fire Alarm
Code(r), Life Safety Code(r), and 101(r) are registered trademarks of
the National Fire Protection Association, Inc., Quincy, MA 02269.

The NICET acronym belongs to:
National Institute for Certification in Engineering Technologies
1420 King Street || Alexandria, VA 22314-2794  || (888) 476-4238
----------------------------------------------------------------
ET News Copyright(c) 2002 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.