Uploaded June 2026 | Updated September 2026, 3 weeks ago
If you've ever heard the "10 metre rule" for surge protection, this video explains what it's really about.
When sensitive equipment like fire alarm panels, server racks, communication equipment and monitoring systems are installed a long distance from the consumer unit, the question isn't whether the type 2 SPD is working. The question is whether the equipment itself is adequately protected from transient overvoltages.
In this video, we explore SPD coordination, type 2 and type 3 surge protection devices, BS 7671 Section 534, Regulation 443.4.4, fire alarm systems, circuit protection and why location matters when protecting modern electronics.
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Learn More About The CPN Cudis Type 3 Surge Arrestor
👉 hub.efixx.co.uk/CPNSurgeArrestor
Free Circuit Protection Training Module
👉 training.efixx.co.uk/course/advanced-circuit-protection-in-association-with-cpn-cudis
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Time Stamps ⏱️
00:00 Do You Need Another SPD After 10m?
00:35 Fire Alarm Panel Example
01:12 Why Sensitive Electronics Matter
01:55 What BS 7671 Actually Says
02:32 Where The 10m Discussion Comes From
03:08 Why Type 3 SPDs Exist
03:45 Coordinating Type 2 & Type 3 SPDs
==============
#surgeprotection #surgeprotector #circuitprotection
If you've ever heard the "10 metre rule" for surge protection, this video explains what it's really about.
When sensitive equipment like fire alarm panels, server racks, communication equipment and monitoring systems are installed a long distance from the consumer unit, the question isn't whether the type 2 SPD is working. The question is whether the equipment itself is adequately protected from transient overvoltages.
In this video, we explore SPD coordination, type 2 and type 3 surge protection devices, BS 7671 Section 534, Regulation 443.4.4, fire alarm systems, circuit protection and why location matters when protecting modern electronics.
==============
Learn More About The CPN Cudis Type 3 Surge Arrestor
👉 hub.efixx.co.uk/CPNSurgeArrestor
Free Circuit Protection Training Module
👉 training.efixx.co.uk/course/advanced-circuit-protection-in-association-with-cpn-cudis
==============
Time Stamps ⏱️
00:00 Do You Need Another SPD After 10m?
00:35 Fire Alarm Panel Example
01:12 Why Sensitive Electronics Matter
01:55 What BS 7671 Actually Says
02:32 Where The 10m Discussion Comes From
03:08 Why Type 3 SPDs Exist
03:45 Coordinating Type 2 & Type 3 SPDs
==============
#surgeprotection #surgeprotector #circuitprotection
