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Unexpected power failures often catch factory managers off guard, causing machines to stop mid-process and production plans to fall apart.…

To minimize machinery downtime during power outages, we must prepare with risk assessments, UPS backup, emergency planning, and generator support.

Without a strategy, even a 10-minute power cut can cause hours of delay. Let’s explore how I approach this common but solvable challenge.

How do I conduct a proper power outage risk assessment?

Many factories wait until it’s too late to think about power risk—by then, it’s already costly.

A good risk assessment identifies which machines are most vulnerable, and what losses a shutdown would cause.

Start by ranking machines by how critical they are to your workflow. For example, our pocket spring bagging machine is essential—if it stops, nothing moves forward.

Risk Prioritization Table

Equipment	Downtime Impact	Power Sensitivity	Priority
Glue Line	Élevé	Moyenne	Élevé
Spring Bagging Machine	Très élevé	Élevé	Très élevé
Compressor	Moyenne	Élevé	Moyenne

Once we listed our top 3 failure risks, we were able to plan targeted protections—starting with UPS support.

Should I invest in Uninterruptible Power Supplies (UPS)?

During short blackouts or voltage dips, damage often comes from the sudden stop, not the duration.

UPS systems give sensitive equipment stable power for a short time—enough to shut down safely or wait until the generator kicks in.

We installed UPS units on our PLC systems and servo controllers—those are costly to replace and often suffer when power flickers.

UPS System Essentials

• Match UPS capacity to machine load (Watt/hour)
• Test monthly: especially battery health and alarms
• Use surge filtering: to handle power "bounce-back"

We avoided a servo system reset—and 3 hours of downtime—thanks to a simple 3-minute UPS buffer.

Do I really need backup generators for power outages?

Short-term backup is great, but what if the grid fails for hours?

Backup generators keep your main machines running long enough to complete batches, protect materials, and reduce delays.

We use a 60kVA diesel generator to power our main line during outages. It’s fitted with an automatic transfer switch (ATS), so it starts in under 8 seconds.

Generator Readiness Checklist

• Monthly test runs
• Full fuel tank + backup drums
• Filter/oil checked every 3 months
• Simulated power-cut drills every 6 months

Without our generator, we’d lose not only time—but also half-done glue assemblies, which can’t be reused.

How can an emergency plan reduce confusion during blackouts?

When lights go out, confusion costs time. Everyone needs to know what to do.

A clear power outage plan helps operators shut down equipment safely, alert managers, and begin recovery smoothly.

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• Operators text photos of panel lights
• Supervisors send client updates by hour

Having a single communication chain helped us avoid misinformation—and got client trust when we still met their deadline.

Should I keep spare parts for blackout-sensitive machines?

Waiting on a spring cutter motor from overseas? During a blackout? You might wait a week.

We keep a shelf of essential spare parts for all our top 5 machines. It saves time and avoids total shutdown.

Key spares include:

• Sealing heater rods
• Servo cables
• Circuit breakers
• Spring feeding belts

We check and reorder these monthly. Just last month, a gluer sensor failed after a power surge—our on-shelf spare saved 3 days.

How often should I review and update my power policy?

What worked last year might not be enough this year—especially if your factory scaled.

We review our power resilience policy every quarter—checking loads, machine changes, and utility issues.

That includes:

• Are our UPS devices still powerful enough?
• Has our new gluing line been added to the backup generator?
• Is our staff retrained on shutdown/restart SOPs?

This constant review keeps our team alert and our factory running—power or no power.

Conclusion

Power cuts are inevitable—but chaos isn’t. With backup systems, clear plans, and smart tools, we keep our machines running and our promises intact.

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