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From lightning concepts to low-voltage power-line SPD products—a structured guide for engineers, panel builders, and local partners.

4. Earthing & Bonding for Protection · Page 5 of 6

External LPS Meets Internal SPDs

How air terminals and down conductors interact with power SPDs.

External LPS conductors can induce voltages on nearby cables. Maintain separation or bonding as required by IEC 62305 practice and local codes.

Where the LPS and electrical earthing meet, Type 1 SPDs often become necessary to equalize potential between power conductors and the LPS earth.

Roof LPS installers and electrical panel builders must share drawings. Split responsibility is a common root cause of incomplete protection.

← The SPD-to-Earth Path

Bonding Checklist for SPD Projects →

Talk to Protec Power about Type 1 / Type 2 staging, product selection, or becoming a local stocking agent in Southeast Asia and the Middle East.

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源自原厂品质保障的 SPD 和门禁产品，专为应对真实的电气与安防需求而打造。

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