UL 452

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Antenna - Discharge Units

UL 452

1 Scope

1.1 These requirements cover antenna-discharge units for radio and television receiving equipment and amateur radio-transmitting and -receiving equipment, to be employed in accordance with the National Electrical Code, NFPA 70.

1.2 An antenna-discharge unit - hereinafter referred to as a discharge unit - as covered by these requirements consists of a gap, a fixed resistance or other discharge element, or a combination of such features, connected between each antenna lead-in terminal and a grounding terminal.