Use Protection for Electronics

We are more and more dependant on electrical devices. Increasing power service is being planned for Data Centers. Many times during an inspection I spot possible problems in the home.

The main threat to the electronics in your home is power surges. Power surges (from lightning, utility grid issues, or internal appliance switching), brownouts/overvoltages, overheating, dust/humidity, and physical damage.

There are solutions

1. Install Whole-Home (Whole-House) Surge Protection (Strongly Recommended First Step, consult with an electrician)

The most effective defense starts at your electrical panel. A whole-house surge protective device (SPD) intercepts large surges before they enter your home wiring and reach any plugged-in devices. There are type 1 and type 2 devices installed in your main service or Meter panel.

They handle massive energy (often rated 50,000–200,000+ amps for lightning-level events) and divert excess voltage to ground.

They protect everything — TVs, computers, refrigerators, HVAC systems, smart home devices, gaming consoles — even hard-wired appliances that power strips can't cover.

Cost: Typically $300–$800 installed.

2. Use Point-of-Use Surge Protectors for Sensitive Electronics

Add a second layer for high-value or sensitive gear (computers, TVs, home theater, routers, gaming PCs, etc.).

Choose quality surge protectors (not just basic power strips) with high joule ratings (at least 1,000–2,000+ joules; higher is better for expensive setups).

Look for UL 1449 listing, and models from reputable brands like Tripp Lite, APC, or Belkin.

Features to prioritize: Multiple outlets, coaxial/ethernet/RJ45 protection (for cable modems, antennas), indicator lights showing if protection is still active, and USB ports if needed.

Replace them every 2–3 years or after a major surge — they wear out silently as they absorb hits.

3. Unplug During Severe Thunderstorms

Even the best protectors have limits against a close/direct lightning strike. When storms approach Unplug sensitive electronics completely (don't just turn them off — surges can travel through cords even when "off").

Focus on TVs, sound systems, computers, routers, game consoles, chargers.

Use smart plugs or automation (e.g., via Home Assistant or similar) to remotely cut power if you're away.

4. Other Practical Protections

UPS (Uninterruptible Power Supply) for critical devices — Computers, NAS drives, routers, or medical equipment. Provides battery backup during outages/brownouts and extra surge filtering.

Proper grounding — Ensure your home's electrical system has good grounding (multiple ground rods if needed). Surges need a low-impedance path to earth.

Coax/Ethernet/Phone line protection — Use inline surge arrestors on cable/satellite lines, internet, and landlines (surges often enter via these paths).

Environmental care — Keep electronics dust-free, avoid extreme heat/humidity, use surge-protected power conditioners in dusty or variable environments.

Smart home consideration — Many 2026 smart devices benefit from the same layered protection; prioritize Matter-compatible gear for better local control and reliability.