Electrical fires pose a significant risk in homes, businesses, and industrial settings. Faulty wiring, overloaded circuits, and equipment failures can lead to devastating consequences. One of the most effective fire suppression technologies for electrical components is the DLP tubing system. These systems detect and extinguish fires at their source, preventing major damage and loss.
In this blog, we will explore how DLP tubing systems prevent electrical fires, their benefits, installation process, and key considerations for maintenance.
What is a DLP Tubing System?
A DLP tubing system is a fire suppression solution that uses heat-sensitive polymer tubing to detect and suppress fires automatically. The tubing is installed inside or near electrical enclosures, circuit panels, and other critical components. When exposed to high temperatures, the tubing bursts, releasing a fire-extinguishing agent directly at the source.
How DLP Tubing Systems Work
1. Fire Detection Mechanism
DLP tubing acts as a linear heat detector. When the temperature rises beyond a critical threshold (typically 110-180°C depending on the tubing type), the tubing ruptures at the hottest point.
2. Fire Suppression Process
When the tubing bursts, it triggers the release of a fire suppression agent, such as:
- Clean agents (FM-200, NOVEC 1230)
- CO₂ (Carbon Dioxide)
- Dry chemical powders
These agents quickly suppress the fire without leaving residue or damaging sensitive electrical components.
3. Automatic and Immediate Action
DLP tubing systems respond within seconds, containing the fire before it spreads. This minimizes damage, ensures continuity of operations, and prevents catastrophic failures.

Benefits of Using DLP Tubing Systems for Electrical Fire Prevention
| Feature | Benefit |
|---|
| Automatic Fire Detection | No need for human intervention; activates instantly. |
| Direct Suppression | Targets fire at the source, preventing spread. |
| Non-Conductive Agents | Safe for electrical equipment; no short circuits. |
| Compact and Flexible | Fits inside electrical panels, enclosures, and racks. |
| Low Maintenance | Requires minimal servicing compared to traditional systems. |
| No False Alarms | Activates only when exposed to fire or extreme heat. |
Common Causes of Electrical Fires and How DLP Tubing Helps
| Cause of Electrical Fire | How DLP Tubing Prevents It |
|---|
| Overloaded Circuits | Detects overheating and suppresses fire instantly. |
| Short Circuits | Extinguishes flames before they spread. |
| Electrical Arcing | Stops sparks from igniting a fire. |
| Equipment Malfunctions | Provides localized protection for high-risk components. |
| Poor Insulation or Wiring Issues | Detects and extinguishes fires within control panels. |
Where Are DLP Tubing Systems Used?
DLP tubing systems are widely used in industries where electrical fire risks are high. Common applications include:
- Data Centers – Protects servers, UPS systems, and network cabinets.
- Industrial Control Panels – Safeguards machinery and automation systems.
- Telecommunication Racks – Prevents downtime in communication infrastructure.
- Electrical Cabinets – Provides fire suppression inside enclosures.
- Renewable Energy Systems – Ensures fire safety in solar and wind power setups.
- Battery Storage Systems – Reduces risks of lithium-ion battery fires.
Installation of DLP Tubing Systems
Installing a DLP tubing system is straightforward and requires minimal modifications to existing setups.
1. Identifying High-Risk Areas
- Locate electrical enclosures and equipment prone to overheating.
- Assess areas with high voltage and potential short circuits.
2. Installing the Tubing
- Secure the polymer tubing inside or around electrical panels.
- Ensure it covers all critical points where fires might start.
3. Connecting the Suppression Agent
- Attach the tubing to a fire suppression agent canister.
- Ensure proper pressure settings for activation.
4. Testing and Inspection
- Conduct a pressure test to ensure no leaks.
- Verify that the system activates at the right temperature.
Maintenance and Refilling of DLP Tubing Systems
To keep a DLP tubing system effective, routine maintenance is essential.
- Regular Inspections – Check for cracks, wear, or leaks in the tubing.
- Pressure Testing – Ensure the system maintains correct pressure levels.
- Agent Refilling – If the system activates, refill it with the appropriate fire suppression agent.
- Annual Compliance Checks – Follow NFPA and ISO safety standards for fire suppression.
Why DLP Tubing is Better Than Traditional Fire Suppression
| Feature | DLP Tubing System | Traditional Fire Suppression |
|---|
| Speed of Detection | Immediate (seconds) | Slower (minutes) |
| Installation Complexity | Simple, no external power needed | Requires additional piping & wiring |
| Fire Suppression Type | Direct to source | Covers larger areas |
| Damage to Equipment | Minimal, non-conductive agents | Potential water or foam damage |
| Maintenance Needs | Low | High |
Conclusion
Electrical fires are a major hazard, but DLP tubing systems provide a fast, automatic, and reliable fire suppression solution. These systems detect heat, release an extinguishing agent directly at the source, and prevent fire spread—all without damaging sensitive electrical equipment.
By installing and maintaining DLP tubing systems, businesses, data centers, and industrial facilities can enhance their fire safety, reduce downtime, and protect valuable assets.