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NEC 2020 changes will require Type 1 or Type 2 Surge Protection Device (SPD) on dwelling unit electrical services.

NEC 2020 changes will require Type 1 or Type 2 Surge Protection Device (SPD) on dwelling unit electrical services. The Requirement for SPDs In an effort to reduce the risk of injury and potential damage to electrical systems and buildings, the newest version of the National Electrical Code, the NEC 2020, will require the installation …

NEC 2020 changes will require Type 1 or Type 2 Surge Protection Device (SPD) on dwelling unit electrical services. Read More »