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December 22, 2002

                             ET NEWS
================================================================
        NEWS AND INFORMATION FOR ENGINEERING TECHNICIANS
----------------------------------------------------------------
Issue No. 78                                          12-22-2002
================================================================

Contents
--------
- News
- ET Journal
- NICET Test Dates
- AFAA Class Schedule
- Comments and Contacts

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

The Baker family Christmas card:
http://www.etnews.org/index.php?s=253

Merry Christmas!

Mike

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

NICET Fire Alarm Systems Level II
34005 FIRE ALARM SYSTEM WIRING
---------------------------------

34005 is a Level II Special Work element.

34005 DESCRIPTION
Understand the proper types of wire, cable, or conduit used on a
fire alarm system, where, in compliance with the codes, each is
permitted, and the correct and incorrect method of field wiring
system components. Prepare an electrical riser and plan view
diagram of a multi-zone, multi-story fire alarm system consisting
of manual fire alarm boxes, heat detectors, four wire smoke
detectors, and a variety of audible and visible appliances. The
diagrams are to show the number and size of conductors and
conduit and the location of each system component. (NFPA 70)

34005 REFERENCES:
NFPA 70
http://www.nfpa.org/catalog/product.asp?category%5Fname=&pid=7099sb

34005 DESCRIPTION BREAKDOWN:
"Understand the proper types of wire, cable, or conduit used on
a fire alarm system, where, in compliance with the codes, each
is permitted, and the correct and incorrect method of field
wiring system components. Prepare an electrical riser and plan
view diagram of a multi-zone, multi-story fire alarm system
consisting of manual fire alarm boxes, heat detectors, four wire
smoke detectors, and a variety of audible and visible appliances.
The diagrams are to show the number and size of conductors and
conduit and the location of each system component."

NFPA 70-1999 760-2 Fire Alarm Circuit. The portion of the wiring
system between the load side of the overcurrent device or the
power-limited supply and the connected equipment of all circuits
powered and controlled by the fire alarm system. Fire alarm
circuits are classified as either nonpower-limited or
power-limited.

NFPA 70-1999 760-2 Nonpower-Limited Fire Alarm Circuit (NPLFA. A
fire alarm circuit powered by a source that complies with
Sections 760-21 and 760-23.

NFPA 70-1999 760-2 Power-Limited Fire Alarm Circuit (PLFA). A
fire alarm circuit powered by a source that complies with Section
760-41.


NFPA 70-1999 760-10. Fire Alarm Circuit Identification. Fire
alarm circuits shall be identified at terminal and junction
locations, in a manner that will prevent unintentional
interference with the signaling circuit during testing and
servicing.

NFPA 70-1999 760-15. Fire Alarm Circuit Requirements. Fire alarm
circuits shall comply with the following parts of this article:
(a) Nonpower-Limited Fire Alarm (NPLFA) Circuits. See Parts A
and B.
(b) Power-Limited Fire Alarm (PLFA) Circuits. See Parts A and C. 

NFPA 70-1999 Article 760 is divided into 3 parts; A, B, and C.
A - General.
B - Non-power-limited circuits.
C - Power-limited circuits.

NFPA 70-1999 760-25. NPLFA Circuit Wiring Methods. Installation
of nonpower-limited fire alarm circuits shall be in accordance
with Sections 110-3(b), 300-11(a), 300-15, 300-17, and other
appropriate articles of Chapter 3. See exceptions.

NFPA 70-1999 370-16. Number of Conductors in Outlet, Device, and
Junction Boxes, and Conduit Bodies
Boxes and conduit bodies shall be of sufficient size to provide
free space for all enclosed conductors. In no case shall the
volume of the box, as calculated in (a), be less than the fill
calculation as calculated in (b). The minimum volume for conduit
bodies shall be as calculated in (c).

See also NFPA 70-1999 Table 370-16(a). Metal Boxes

NFPA 70-1999 Table 1. Percent of Cross Section of Conduit and
Tubing for Conductors
Number of Conductors    All Conductor Types
--------------------    -------------------
       1                      53%
       2                      31%
  Over 2                      40%	

See also Appendix C Conduit and Tubing Fill Tables for Conductors
and Fixture Wires of the Same Size

NFPA 70-1999 760-26. Conductors of Different Circuits in Same
Cable, Enclosure, or Raceway.
(a) Class 1 with NPLFA Circuits. Class 1 and nonpower-limited
fire alarm circuits shall be permitted to occupy the same cable,
enclosure, or raceway without regard to whether the individual
circuits are alternating current or direct current, provided all
conductors are insulated for the maximum voltage of any conductor
in the enclosure or raceway.
(b) Fire Alarm with Power-Supply Circuits. Power-supply and fire
alarm circuit conductors shall be permitted in the same cable,
enclosure, or raceway only where connected to the same equipment.

760-27. NPLFA Circuit Conductors.
(a) Sizes and Use. Only copper conductors shall be permitted to
be used for fire alarm systems. No. 18 conductors and No. 16
conductors shall be permitted to be used, provided they supply
loads that do not exceed the ampacities given in Table 402-5 and
are installed in a raceway, an approved enclosure, or a listed
cable. Conductors larger than No. 16 shall not supply loads
greater than the ampacities given in Section 310-15, as
applicable.
(b) Insulation. Insulation on conductors shall be suitable for
600 volts. Conductors larger than No. 16 shall comply with
Article 310. Conductors in sizes No. 18 and 16 shall be Type
KF-2, KFF-2, PAFF, PTFF, PF, PFF, PGF, PGFF, RFH-2, RFHH-2,
RFHH-3, SF-2, SFF-2, TF, TFF, TFN, TFFN, ZF, or ZFF. Conductors
with other types and thickness of insulation shall be permitted
if listed for nonpower-limited fire alarm circuit use.
FPN: For application provisions, see Table 402-3.
(c) Conductor Materials. Conductors shall be solid or stranded
copper. See exception.

NFPA 70-1999 760-30 Multiconductor NPLFA Cables. Multiconductor
nonpower-limited fire alarm cables that meet the requirements of
Section 760-31 will be permitted to be used on fire alarm
circuits operating at 150 volts or less and will be installed in
accordance with NFPA 70-1999 760-30 (a) and (b).

NFPA 70-1999 760-31(f) Fire Alarm Circuit Integrity (CI) Cable.
Cables suitable for use in fire alarm systems to ensure
survivability of critical circuits during a specified time under
fire conditions will be listed as circuit integrity (CI) cable.
Cables identified in NFPA 70-1999 760-31(c), (d), and (e) meeting
the requirements for circuit integrity will have the additional
classification using the suffix "CI" (for example, NPLFP-CI,
NPLFR-CI, and NPLF-CI). See Notes.

NFPA 70-1999 760-31(g) NPLFA Cable Markings. Multiconductor
nonpower-limited fire alarm cables will be marked in accordance
with NFPA 70-1999 Table 760-31(g). Nonpower-limited fire alarm
circuit cables will be permitted to be marked with a maximum
usage voltage rating of 150 volts. Cables that are listed for
circuit integrity will be identified with the suffix "CI" as
defined in NFPA 70-1999 760-31 (f).

NFPA 70-1999 760-52. Wiring Methods and Materials on Load Side
of the PLFA Power Source. Fire alarm circuits on the load side
of the power source shall be permitted to be installed using
wiring methods and materials in accordance with either (a) or
(b).
(a) NPLFA Wiring Methods and Materials. Installation shall be
in accordance with Section 760-25, and conductors shall be solid
or stranded copper. See exceptions.
(b) PLFA Wiring Methods and Materials. Power-limited fire alarm
conductors and cables described in Section 760-71 shall be
installed as detailed in (1), (2), or (3) of this section.
Devices shall be installed in accordance with Sections 110-3(b),
300-11(a), and 300-15.
In raceway or exposed on the surface of ceiling and sidewalls or
fished in concealed spaces. Cable splices or terminations shall
be made in listed fittings, boxes, enclosures, fire alarm
devices, or utilization equipment. 
Where installed exposed, cables shall be adequately supported and
installed in such a way that maximum protection against physical
damage is afforded by building construction such as baseboards,
door frames, ledges, etc. 
Where located within 7 ft (2.13 m) of the floor, cables shall be
securely fastened in an approved manner at intervals of not more
than 18 in. (457 mm).
2. In metal raceways or rigid nonmetallic conduit where passing
through a floor or wall to a height of 7 ft (2.13 m) above the
floor, unless adequate protection can be afforded by building
construction such as detailed in (1), or unless an equivalent
solid guard is provided.
3. In rigid metal conduit, rigid nonmetallic conduit,
intermediate metal conduit, or electrical metallic tubing where
installed in hoistways. See exceptions.

NFPA 70-1999 760-54 Installation of Conductors and Equipment.
 (a) Separation from Electric Light, Power, Class 1, and NPLFA,
 and Medium Power Network-Powered Broadband Communications
 Circuit Conductors.
 (1) In Cables, Compartments, Enclosures, Outlet Boxes, or
 Raceways.
Power-limited circuit conductors will not be placed in any cable,
compartment, enclosure, outlet box, raceway, or similar fitting
with conductors of electric light, power, Class 1,
nonpower-limited fire alarm circuit conductors, or medium power
network-powered broadband communications circuits. See the
exceptions.

NFPA 70-1999 Table 760-61
Cable Uses and Permitted Substitutions
	
Type         Use             References    Permitted Substitutions	
----  ------------------     ----------    -----------------------
FPLP  Power-limited fire     760-61 (a)    MPP, CMP, CL3P	
      alarm plenum cable

FPLR  Power-limited fire     760-61 (b)    MPP, CMP, FPLP, CL3P,
      fire alarm riser cable               MPR, CMR, CL3R

FPL   Power-limited fire     760-61(c)     MPP, CMP, FPLP, CL3P,
      alarm cable                          MPR, CMR, CL3R, FPLR,
                                           MPG, MP, CMG, CM, PLTC,
                                           CL3


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 1/25/03. Postmark deadline 12/7/03.
Test 4/26/03. Postmark deadline 3/8/03.

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 2/22/03. Postmark deadline 1/4/03.
Test 5/17/03. Postmark deadline 3/29/03.

WA2 Walla Walla Community College;
Test 2/22/03. Postmark deadline 1/4/03.
Test 5/17/03. Postmark deadline 3/29/03.

WA3 Spokane Community College;
Test 2/22/03. Postmark deadline 1/4/03.
Test 5/17/03. Postmark deadline 3/29/03.

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
================================================================

------------------
January 14-16, 2003 Denver, CO -
Sponsored by the Rocky Mountain AFAA
------------------
Advanced Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/ADV_Denver_Jan2003.pdf

------------------
January 21-23, 2003 Oklahoma City, OK - Sponsored by OK AFAA
------------------
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/IntFA_OKC_Jan2003.pdf

------------------
January 21-23, 2003 Atlanta, GA 
------------------
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/IntFA_Atlanta_January2003.pdf

------------------
February 4-6, 2003 Orlando, FL
------------------
Advanced Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/ADV_Orlando_Feb2003.pdf

------------------
February 4-6, 2003 Las Vegas, NV
------------------
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/IntFA_LasVegas_Feb2003.pdf

------------------
February 10-13, 2003 San Diego, CA - Sponsored by CAFAA
------------------
Fire Alarm System Testing and Inspection Seminar.
http://www.afaa.org/afaa/PDF/INT_TI_CAFAA_SanDiego_February2003.pdf
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/INT_TI_CAFAA_SanDiego_February2003.pdf

------------------
February 11-13, 2003 Houston, TX - Co-sponsored by TFAA
------------------
Advanced Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/ADV_HOUSTON_Feb2003.pdf

------------------
February 18-20, 2003 Portland, OR - Co-sponsored by Oregon AFAA
------------------
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/IntFA_Portland_Feb2003.pdf

------------------
February 19-21, 2003 Raleigh, NC 
------------------
Intermediate Fire Alarm Seminar.
http://www.afaa.org/afaa/PDF/IntFA_Raleigh_February2003.pdf

------------------
February 25-27, 2003 Honolulu, HI
- Co-sponsored by SFPE Hawaii Chapter 
------------------
Intermediate Fire Alarm Seminar.
More information will be available soon!

------------------
March 11-13, 2003 Dallas, TX - Sponsored by NSCA
------------------
Intermediate Fire Alarm Seminar. http://www.nsca.org

------------------
March 11-13, 2003 Deerfield Beach, FL (Ft. Lauderdale)
------------------
Intermediate Fire Alarm Seminar.
More information will be available soon! 

------------------
March 17-20, 2003 Oakland, CA - Sponsored by CAFAA
------------------
Fire Alarm System Testing and Inspection Seminar.
More information will be available soon! 
Advanced Fire Alarm Seminar.
More information will be available soon!

------------------
March 25-26, 2003 Las Vegas, NV - Sponsored by ISC West
------------------
Fire Alarm System Testing and Inspection Seminar.
http://www.iscwest.com

================================================================
COMMENTS AND CONTACTS
================================================================

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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.