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September 9, 2001

                   Northwest NICET Newsletter 
================================================================
Volume 1 Issue 11                                       9-9-2001
================================================================

        News for Fire Protection Engineering Technicians
        ------------------------------------------------

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

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

"NICET updates Fire Protection Standards Table
As part of a continued review and revision to our Fire Protection
Engineering Technology certification programs, NICET has updated its
Fire Standard Editions reference chart. The table indicates which code
and standard editions are referenced in the examination questions for
all of NICET's fire protection programs (Fire Alarm Systems, Automatic
Sprinkler System Layout, Special Hazards Suppression Systems, and
Inspection and Testing of Water-Based Systems). If you are testing in
one of these programs, please download the new table (at
http://www.nicet.org/firestandards.pdf) and remember to check this site
often for other updates that might affect your certification process." 

Source: http://www.nicet.org/news.shtml

================================================================
TECH TIP 
================================================================

Modifying Smoke Detector Spacing due to High Air Movement
---------------------------------------------------------

Try this one on your own
------------------------

Determine the de-rated spacing (if any) for spot-type smoke-sensing fire
detectors to be installed in this room based upon air movement.

+-------------------------------------+ -
|     +-+     +-+     +-+     +-+     | ^
|     +-+     +-+     +-+     +-+     | |
| each air supply register = 200 CFM  | |
|     +-+     +-+     +-+     +-+     | |
|     +-+     +-+     +-+     +-+     | |
|                                     | 20'
|     +-+     +-+     +-+     +-+     | |
|     +-+     +-+     +-+     +-+     | |
|                                     | |
|     +-+     +-+     +-+     +-+     | |
|     +-+     +-+     +-+     +-+     | |
+-------------------------------------+ -

|<--------------- 32' --------------->|

Smooth and flat ceiling height = 10 feet
Air return = air supply


Step 1)
-------

Determine the volume of the room in cubic feet:

Length X Width X Height = Volume
32 ft  X 20 ft X 10 ft = 6400 ft^3

Room volume = 6400 ft^3


Step 2)
-------
The drawing shows that each air supply vent provides 200 cubic feet per
minute (CFM) and that there are a total of 16 air supply vents. To
determine how rapidly the air in the room is turning over, we multiply
the air supply per vent times the total number of vents:

200 ft^3/minute X 16 = 3200 ft^3/minute

Air supply = 3200 ft^3/minute


Step 3)
-------
How often is the entire volume of air in the room replaced?

Volume of the room (from step 1) = 6400 ft^3

Room air supply rate (from step 2) = 3200 ft^3/minute

6400 ft^3       1 minute
------------- X ---------
1 Room Volume   3200 ft^3
(air change)

Using algebra, the ft^3 units cancel each other out and we're left with
minutes per air change:

2 minutes / air change

or;

1 air change   60 minutes
------------ X ---------- = 30 air changes per hour
2 minutes      1 hour


Step 4)
-------
At 2 minutes per air change (or 30 air changes per hour), Table
2-3.6.6.3 specifies 250 ft^2 spacing per smoke detector.

To determine spacing in linear feet, we have to find the square root of
250 ft^2 = 15.8 ft.

[30 ft spacing -> 30 ft X 30 ft = 900 ft^2; sqrt of 900 ft^2 = 30 ft]

The modified spacing for this example is 15.8 ft.

================================================================
TEST DATES 
================================================================

Oregon
------
PCC Sylvania, Portland;
Test 11/19/01. Postmark deadline 9/29/01.

Clackamas Community College, Oregon City;
Test 9/15/01. Postmark deadline 7/28/01.
Test 11/19/01. Postmark deadline 9/29/01.

Washington
----------
Bates Technical College, Tacoma;
Test 9/15/01. Postmark deadline 7/28/01.
Test 11/19/01. Postmark deadline 9/29/01.

Walla Walla Community College;
Test 12/14/01. Postmark deadline 10/27/01.

Spokane Community College;
Test 10/20/01. Postmark deadline 9/1/01.

Idaho
-----
Boise State University;
Test 11/17/01. Postmark deadline 9/29/01.

Ricks College, Rexburg;
Test 12/15/01. Postmark deadline 10/27/01.

Montana
-------
Rocky Mountain College, Billings;
Test 10/20/01. Postmark deadline 9/1/01.

Montana Tech, University of Montana, Butte;
Test 9/14/01. Postmark deadline 7/28/01.
Test 11/16/01. Postmark deadline 9/29/01.

MT State University, Bozeman;
Test 9/15/01. Postmark deadline 7/28/01.
Test 12/15/01. Postmark deadline 10/27/01.

Flathead Valley Community College, Kalispell;
Test 9/15/01. Postmark deadline 7/28/01.
Test 11/17/01. Postmark deadline 9/29/01.

For a complete list of all test centers and test dates, point your http
client to --> http://www.nicet.org/tests.shtml

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

Clackamas Community College is sponsoring a 16-hour weekday evening
seminar in September:

--> 9-10-2001 6pm - 10pm NICET Certification application process

--> 9-12-2001 6pm - 10pm Fire Alarm Systems Level I Element Review

--> 9-17-2001 6pm - 10pm Fire Alarm Systems Level II Element Review part
1

--> 9-19-2001 6pm - 10pm Fire Alarm Systems Level II Element Review part
2

Visit http://www.geocities.com/michaelbaker/outline.pdf or call
503-657-0135 for more information.

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

If you have computers that you no longer use, consider donating them to
my used-computer-cluster, which is currently working on the
http://www.distributed.net rc5-64 project (you can see my progress here
--> http://stats.distributed.net/rc5-64/psummary.php3?id=339952). You
will earn my undying gratitude if not a legitimate tax deduction.

Send your contributions, suggestions, comments, and questions to -->
mailto:TheBakerGroup@home.com

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

Good luck and have fun!

Mike  http://go.to/baker

================================================================
NW NICET Newsletter Copyright (c) 2001 Michael B. Baker
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