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Standard 1449, Edition 4

Standard for Surge Protective Devices

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Standard 1449, Edition 4 Edition Date: March 17, 2016
Summary of Topics s1449_4_sum.html

Summary of Topics

Revision pages have been issued for the Standard for Safety for Surge Protective Devices, UL 1449, to reflect the latest ANSI approval date and to incorporate the proposals dated August 7, 2015 and February 5, 2016, which include the following:

• Revision of PV requirements.

• Testing methods for Combination Type SPDs.

• Interchangeability of Metal Oxide Varistors (MOVs).

• Addition of tolerance requirements.

• Addition of requirements for DC SPDs.

• Addition of requirements for Open Type SPDs.

• Addition of requirements for SPDs intended for connection using exposed wiring methods.

• SPDs with only N-G protection.

• Editorial corrections to Table 36.2.

• Clarification of test method for Fault Current and Overcurrent Tests.

• Type 3 SPD - cord connected intended to be permanent mounted on furniture.

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