بناء نظام أمن منزلي ذكي متكامل من EZVIZ

Introduction

A power outage means your cameras go dark at the worst possible time. Uninterruptible Power Supplies (UPS) keep your surveillance system running during blackouts, voltage fluctuations, and surges—common occurrences in many parts of Egypt.

Why UPS Matters for CCTV

Without a UPS, a power cut kills all cameras, NVRs, and switches instantly. You lose live monitoring and recording during the outage—precisely when a security incident is most likely (opportunistic theft during blackouts). A UPS bridges the gap until power returns or a generator starts.

Sizing Your UPS

Add up the power consumption of all devices on the UPS: NVR (50–100 W), PoE switch (total camera PoE load + switch overhead), monitor (30–50 W), and router/modem (10–20 W). Choose a UPS with a VA rating at least 30% higher than the total load for safe headroom. A typical 8-camera system needs a 1000–1500 VA UPS for 15–30 minutes of backup.

Online vs Line-Interactive UPS

Line-interactive UPS units are the most cost-effective choice for small to medium CCTV systems. Online (double-conversion) UPS units provide the cleanest power and zero transfer time, making them ideal for large enterprise installations and server rooms.

Surge Protection

Beyond backup power, a UPS protects against voltage spikes and surges that can damage NVRs and switches. In areas with unstable power, this protection alone can save the cost of the UPS by preventing equipment damage.

FastEgy Recommendation

FastEgy includes UPS sizing in every system design. We supply and install UPS units alongside NVRs and switches, ensuring your surveillance never goes offline. Contact us for a power-protection plan.