 |
| Purchase Information |
| Use this form to request purchase information on UL online subscriptions. |
|
|
Document UL 1449 is offered by IHS as part of an online subscription. This subscription contains many documents on the same topic.
You may also purchase this document alone from the IHS Standards Store.
UL 1449 Document Information:
Title
UL Standard for Safety Surge Protective Devices
Underwriters Laboratories Inc.
Publication Date:
Sep 29, 2006
Scope:
These requirements cover Surge Protective Devices (SPDs)
designed for repeated limiting of transient voltage surges as
specified in the standard on 50 or 60 Hz power circuits not
exceeding 1000 V and designated as follows:
Type 1 – Permanently connected SPDs intended for installation
between the secondary of the service transformer and the line side
of the service equipment overcurrent device, as well as the load
side, including watt-hour meter socket enclosures and intended to
be installed without an external overcurrent protective
device..
Type 2 – Permanently connected SPDs intended for installation on
the load side of the service equipment overcurrent device;
including SPDs located at the branch panel.
Type 3 – Point of utilization SPDs, installed at a minimum
conductor length of 10 meters (30 feet) from the electrical service
panel to the point of utilization, for example cord connected,
direct plug-in, receptacle type and SPDs installed at the
utilization equipment being protected. See marking in 64.2. The
distance (10 meters) is exclusive of conductors provided with or
used to attach SPDs.
Type 4 – Component SPDs, including discrete components as well
as component assemblies.
Except as indicated in 1.3, the products covered by this
Standard are rated and intended for connection to circuits or
supply sources having nominal voltage ratings as specified in Table
39.1.
A product intended for connection to an ac circuit or supply
source other than that specified in 1.2 may be examined and tested
in accordance with the intent of the requirements in this standard
and, if found to be substantially equivalent, may be judged to
comply with this Standard.
These requirements cover cord-connected and direct plug-in SPDs
intended for indoor use and permanently connected SPDs intended for
indoor and outdoor use in accordance with the National Electrical
Code, ANSI/NFPA-70.
These requirements do not cover the interconnection of multiple
field installed SPDs.
These requirements cover SPDs that may include components
specifically intended to function as filters for conducted
electromagnetic interference (EMI) or noise, in addition to
limiting transient voltage surges. See Section 26.
These requirements cover SPDs employing circuit components
intended to provide secondary protection for telephone
communication circuits and circuit components intended to protect
data communication or fire alarm circuits. See Section 27.
These requirements cover SPDs employing antenna connections for
audio-video products. See Section 28.
An SPD that has a battery backup feature or other
uninterruptible power supply equipment shall also comply with the
applicable requirements in the Standard for Uninterruptible Power
Supply Equipment, UL 1778. See Section 30.
These requirements cover SPDs/Panelboard Extension Modules.
These products shall also comply with the Standard for Panelboards,
UL 67. See Section 31.
These requirements do not evaluate the effect of SPDs on
connected loads, the effect of SPDs on harmonic distortion of the
supply voltage, the degree of attenuation provided by SPDs, nor the
adequacy of the voltage protection rating of SPDs to protect
specific connected equipment from upset or damage.
This standard does not cover cord connected or direct plug-in
SPDs intended for use with medical equipment. Medical equipment is
typically intended for use in General Patient Care Areas or
Critical Patient Care Areas as defined by Article 517 of the
National Electrical Code for Health Care Facilities. SPDs intended
for such use shall comply with the requirements of the Standard for
Safety of Medical Electrical Equipment, Part 1: General
Requirements, UL 60601-1, and the Standard for Safety Requirements
for Medical Electrical Systems, IEC 60601-1-1.
An SPD intended to serve as an outlet cover plate or outlet box
hood shall comply with the requirement for faceplates in the
Standard for Cover Plates for Flush Mounted Wiring Devices, UL
514D.
About IHS
IHS (NYSE: IHS) is a leading global provider of critical technical information, decision-support tools and related services in a number of industries including aerospace and defense, automotive, construction, electronics, and energy. IHS serves customers ranging from large governments and multinational corporations to smaller companies and technical professionals in more than 100 countries. IHS been in business for more than 45 years and employ more than 2,300 people around the world.
