即插即用光伏（PIPV）系统安全要求与合规指南解析

王婷岚

苏州UL美华认证有限公司

E-mail: mia.wang@ul.com

报告摘要

即插即用光伏（PIPV）为公众使用清洁电力提供了便捷方式，但其接入传统布线系统可能引发安全风险。本文以UL 3700为主线，分析GFCI兼容性、触电及支路过流风险，并介绍双向GFCI、专用连接器、输出保护和过流防护方案。同时梳理关键部件认证及附加测试要求，比较美国与欧洲标准的适用范围，为产品设计与认证评估提供参考。

关键词：即插即用光伏（PIPV）；UL 3700；GFCI兼容性；触电防护；过流保护

Safety requirements and compliance guide

for plug-in photovoltaic (PIPV) systems

Tinglan Wang

UL-CCIC Company Limited

E-mail: mia.wang@ul.com

Abstract

Plug-in photovoltaic (PIPV) systems offer the public convenient access to clean electricity, but their connection to conventional wiring systems may introduce safety risks. With UL 3700 as the primary reference, this paper examines GFCI compatibility, electric shock, and branch-circuit overcurrent risks, and presents protective measures including bidirectional GFCIs, dedicated connectors, output protection, and overcurrent protection. It also reviews certification and additional testing requirements for key components and compares the applicability of U.S. and European standards, providing guidance for product design and certification assessment.

Keywords: Plug-in photovoltaic (PIPV); UL 3700; GFCI compatibility; Electric shock protection; Overcurrent protection