UL Question Corner
UL Online Model Code Correlation
Database
I see that the 2006 White
Book now includes an index that correlates the 2005
NEC to UL product categories, is there a UL code correlation
database online that I can access?
The answer is yes; there is
a UL code correlation database on UL.com. In the
past several issues of the UL Question Corner, we discussed all the
new features in the 2006 UL White
Book that make it the companion
tool to the NEC. One of those features is the Index of Product Categories Correlated to the 2005 NEC,
the index is a code correlation index.
UL took that data and incorporated
that into an online version in a database form that correlates the 2005
NEC to UL product categories and
also includes various building, mechanical and gas codes. If you are
an electrical or a multi-discipline inspector, this database will be a onestop shop for determining which
UL Listed products you should be
looking for to determine compliance
with the Code.
The UL Code Correlation Database is located on the Regulators
page of UL.com by clicking on the
UL Code Correlation Database button on the right hand side of the
screen. The database can also be directly accessed at www.ul.com/regulators/codelink.
The Code Correlation Database
covers the following model codes:
2005 National Electrical Code
(NEC), 2000, 2003 and 2006 International Building Code (IBC),
Figure 1. Category Code/Model Code Database screen shot
Figure 2.
2003 and 2006 International Mechanical Code (IMC) and the 2003
and 2006 International Fuel Gas
Code (IFGC). In the near future,
the 2006 International Fire Code
will also be added.
The database is simple to use:
1. Select the Model Code you
would like to search from the drop
down menu.
2. Enter the Code Section you
92 IAEI NEWS March.April 2007
are searching for or the UL Category
Code. By entering the code section,
you will see the UL product categories that apply to the specific code
section. If you enter a UL category
code instead of a code section, all
the code sections will be shown that
have been identified as pertaining to
that category code.
In addition to the identification
of the proper UL Product Category
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UL Question Corner
and Category Code, you will also be
provided with the additional details,
such as the identification of the standard that is used for certification
and a link to the scope of the UL
standard if applicable.
This database will be a big help to
AHJs, plan reviewers, specifiers and
designers by bringing a direct link
between the Code and code-compliant product installations.
Let’s take an example of how it
works. Suppose we are trying to locate
transfer equipment for use in optional
standby systems for NEC 702.6. First,
locate the Model Code Correlation
Database at www.ul.com/regulators/
codelink, then select the 2005 NEC
from the Model Code pull down
menu, then enter the Code Section
702.6 in the Code Section Number
field and click submit.
The results show there are five
UL product categories that may satisfy this Code requirement. Those
are: Panelboards (QEUY), Enclosed
Switches (WIAX), Automatic Transfer Switches for use in Optional
Standby Systems (WPXT), Non Automatic Transfer Switches (WPYV),
and Transfer Switches (WPTZ).
While the transfer switch categories may be obvious for compli-
www.iaei.org
ance with Article 702, Panelboards
(QEUY) and Enclosed Switches
(WIAX) may not be so obvious. By
clicking on the details link and then
the Guide Information link for Panelboards (QEUY), we see that the
Guide Information includes information regarding Article 702. This
information states, “Some panelboards, constructed with interlocked
main switching and overcurrent
protective devices, have been investigated for use in optional standby
systems in accordance with Article
702 of the NEC and are marked
‘Suitable for use in accordance with
Article 702 of the National Electrical Code ANSI/NFPA 70,’ or, if
provided within kit form, ‘Suitable
for use in accordance with Article
702 of the National Electrical Code
ANSI/NFPA 70 when provided
with interlock kit Cat No. ____.’”
If we click on the details link for
Enclosed Switches (WIAX) and
then the Guide Information link we
see the (WIAX) Guide Information
also includes information regarding
Article 702 suitability. The Guide
Information states, “Some panelboards, constructed with interlocked
main switching and overcurrent
protective devices, have been inves-
tigated for use in optional standby
systems in accordance with Article
702 of the NEC and are marked
‘Suitable for use in accordance with
Article 702 of the National Electrical Code ANSI/NFPA 70,’ or, if
provided within kit form, ‘Suitable
for use in accordance with Article
702 of the National Electrical Code
ANSI/NFPA 70 when provided
with interlock kit Cat No. ____.”
The UL Model Code Correlation Database is just another tool
UL provides to AHJs and installers
to assist in determining code-compliant installations. If you have any
questions on the UL Model Code
Correlation Database, please contact Bob Eugene at Robert.Eugene@
us.ul.com.
The “UL Question Corner” answers questions of general interest that are sent in from
authorized government inspectors that we believe will have interest for many inspectors.
Please send us questions you may have
that are general interest, and we will have
UL engineers answer them in a future issue. If space does not permit answering all
questions, we’ll see that you get an answer
by letter.
Send your questions to: iaei@iaei.org, or
UL Question Corner, IAEI News
PO Box 830848
Richardson, TX 75083
March.April 2007 IAEI NEWS
93