UL規格 9990, 2023: Information and Communication Technology (ICT) Power Cables
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Description
This Standard covers the power handling capabilities of Information and Communication Technology (ICT) cable assemblies when used for powering or charging Audio/Video, Information, and Communication Technology Equipment applications. This does not include Power Over Ethernet cables that are permanently installed to power equipment installed on the network. The signal transmission performance of the cable assemblies is not within the scope of these requirements.
These requirements apply to ICT cable assemblies categorized below, Type designations used in this standard only serve as a guide to determine appropriate requirements, and do not represent an assigned rating.
a) Type I: These cable assemblies are intended to be used only in the output of a power source class 2 (PS2) and electrical energy source class 1 (ES1), or a limited power source, as determined in accordance with the Standard for Audio/Video, Information, and Communication Technology Equipment ? Part 1: Safety Requirements, UL 62368-1. These circuits do not exceed 60 V DC, 8.0 amperes and 100 watts.
Note: These circuits are sometimes referred to as "low voltage, limited-power circuits", "low voltage, limited-energy circuits” or "NEC? Class 2 circuits".
b) Type II: These cable assemblies are intended to be used in the output of a power source that exceeds the limits for Type I and provide powering or charging for connected equipment that do not exceed 60 V DC, 8.0 amperes and power limits over 100 watts and up to and including 250 watts. These cable assemblies contain an electronic circuit to implement power delivery synchronization (handshaking) with the power source before permitting over 100 W of power.
Note: These circuits are sometimes referred to as ES1 (< 60Vdc >) and PS3 (> 100VA)
ICT cable assemblies may also be required to comply with industry specifications applicable to their particular configuration and use. Compliance with these specifications is not within the scope of these requirements.