Learning path
From lightning concepts to low-voltage power-line SPD products—a structured guide for engineers, panel builders, and local partners.
18. Common Mistakes & Failure Modes · Page 2 of 7
An SPD without earth is theater.
Repeated common-mode damage, mysterious shocks/tingles on faults, SPD never shows stress.
PE not landed, painted contact surfaces, or shared skinny earth jumpers.
Restore bonding integrity; test continuity; redesign earth tails.
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We warmly welcome local agents and distributors. Stock our products with confidence — we provide professional service, dependable supply support, and high-quality surge protection and access control solutions.
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Factory-backed SPD and access control products built for real-world electrical and security demands.
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