Energy Conservation Program: Test Procedure for External Power Supplies
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Issuing agencies
Abstract
On December 6, 2019, the U.S. Department of Energy ("DOE") published a notice of proposed rulemaking ("NOPR") proposing certain amendments to its test procedure for external power supplies ("EPS" or "EPSs"). In this supplemental notice of proposed rulemaking ("SNOPR"), DOE is proposing additional amendments and modifications to certain proposals presented in the SNOPR. In this document, DOE is proposing to remove reference to direct operation and indirect operation Class A EPSs in the scope; simplify and more explicitly align the scope of the test procedure with the scope of the energy conservation standards; provide additional specifications for the testing of EPSs that do not ship with an output cord; and align the testing requirements for programmable power supplies with those for Universal Serial Bus Power Delivery ("USB-PD") EPSs. Further, DOE proposes to maintain the location of certain definitions for which it proposed in the NOPR to relocate. DOE is seeking comment from interested parties on the proposals.
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