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December 16, 2001

                   Northwest FPETT Newsletter
================================================================
Volume 1 Issue 25                                     12-16-2001
................................................................
News for Fire Protection Engineering Technicians & Technologists
================================================================

Contents:
---------
- News
- Tech Crud
- Test Dates
- Class Schedule
- Administrivia

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

The next quarterly meeting of the Oregon Automatic Fire Alarm
Association (OAFAA) is scheduled for 9:00 AM on Tuesday, January
15th, 2002 at the Radisson Hotel in Portland. Visit
http://www.oafaa.org or email Larry Tate mailto:larry@nwfire.com
for more information.

================================================================
TECH CRUD
================================================================

Length o' Wire
--------------

This is the solution to project 2 of 2 for those of you attending
the seminars at Clackamas Community College in November. 

Determine the length of wire in the example using NFPA 70 and a
volt-ohm-meter.
                                                               
            |<-------------  d = ? feet ------------>|

+-----------+      .-.  .-.    .-.  .-.    .-.  .-.     
|+----+   + +--.  /   /     /   /     /   /       
||VOM |     |   /    /    /    /    /    /    `x-<-Twisted
|+----+   - +---'   /     /   /     /   /     /   together
+-----------+     `-'    `-'  `-'    `-'  `-'    `-'     
Simpson(r)
Model 260 VOM                              

R = 4 ohm
d = wire run distance
L = length of copper wire (two times d)                                

The wire is 10AWG 7-strand uncoated copper.


Step 1)
-------
If I pull wire on a job site and need to know the wire run length
(d) I just installed, I can twist the pair together at one end,
attach my trusty Simpson(r) Model 260 volt-ohm-milliammeter to
the open pair to determine the resistance in ohms represented by
the pair of wires.


Step 2)
-------
In this example, I read 4 ohm of resistance on my meter.


Step 3)
-------
Using Table 8 'Conductor Properties' in NFPA 70-1999 (Chapter 9
page 567) I see that 10AWG 7-strand uncoated copper has 1.24 ohm
per 1000 feet (at 167 degrees F) or;

1.24 ohm
--------
1000 ft 


Step 4)
-------
Determine how long this wire run is using the information we've
gathered;

L = 4 ohm x 1000 ft  = 4000 ohm-ft = 3226 ft
            --------   -----------
            1.24 ohm   1.24 ohm


Step 5)
-------
Remember that L is the total length of copper and d is the wire
run distance or L/2;

    3226 ft
L = ------- = 1613 ft
      2

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

Oregon
------
PCC Sylvania, Portland;
Test 1/26/02. Postmark deadline 12/1/01.

Clackamas Community College, Oregon City;
Test 1/26/02. Postmark deadline 12/1/01.

Washington
----------
Bates Technical College, Tacoma;
Test 2/23/02. Postmark deadline 12/1/01.

Walla Walla Community College;
Test 1/26/02. Postmark deadline 12/1/01.

Spokane Community College;
Test 2/23/02. Postmark deadline 12/1/01.

Idaho
-----
Boise State University;
Test 2/23/02. Postmark deadline 12/1/01.

Brigham Young University, Rexburg;
Test 2/23/02. Postmark deadline 12/1/01.

Montana
-------
Rocky Mountain College, Billings;
Test 1/26/02. Postmark deadline 12/1/01.

Montana Tech, University of Montana, Butte;
Test 1/26/02. Postmark deadline 12/1/01.

MT State University, Bozeman;
Test 1/26/02. Postmark deadline 12/1/01.

Flathead Valley Community College, Kalispell;
Test TBA/02. Postmark deadline 12/1/01.

For a complete list of all test centers and test dates, visit the
*NICET web page http://www.nicet.org/tests.shtml

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

The Washington Burglar & Fire Alarm Association (WBFAA) is
sponsoring two 16-hour seminars in January 2002 near Seattle:

--> 1-12-2002 8am - 5pm *NICET Certification application process
and Fire Alarm Systems Level I Element Review.

--> 1-19-2002 8am - 5pm Fire Alarm Systems Level II Element
Review.

--> 1-15-2002 8am - 5pm *NICET Certification application process
and Fire Alarm Systems Level I Element Review.

--> 1-16-2002 8am - 5pm Fire Alarm Systems Level II Element
Review.

LOCATION:
---------
9555 SE 36th
Mercer Island WA 98040

INSTRUCTOR:
-----------
Dean Reed, CET
Dean Reed and Associates
8317 35th Avenue SW
Seattle WA 98126
(206) 935-8950 
mailto:bubba@oz.net

----------------------------------------------------------------
To register for these classes, please visit http://www.lerc.org.
----------------------------------------------------------------

Clackamas Community College in Oregon City, OR is sponsoring a
16-hour Saturday Seminar in January 2002 near Portland:

--> 1-12-2002 8am - 5pm *NICET Certification application process
and Fire Alarm Systems Level I Element Review.

--> 1-19-2002 8am - 5pm Fire Alarm Systems Level II Element
Review.

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

INSTRUCTOR:
-----------
Michael B. Baker, SET
The Baker Group
PO Box 737
Gladstone, OR 97027
(503) 656-0967
mailto:mbbaker@attbi.com

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

Send your contributing articles, suggestions, comments, and
questions to mailto:mbbaker@attbi.com

To unsubscribe, click the reply button and type 'unsubscribe'
in the subject line.

Good luck and have fun!

Mike http://go.to./baker

================================================================
Copyright (c) 2001 Michael B. Baker all rights reserved.
----------------------------------------------------------------
*The NICET acronym is the property of:
NATIONAL INSTITUTE FOR CERTIFICATION IN ENGINEERING TECHNOLOGIES
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(888) IS-NICET <-> (888) 476-4238
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