The tower interior is space-constrained, with strong vibration and large day-night temperature swings. The EAPD device mounts magnetically inside the distribution cabinet — no extra space, no rewiring, and fully maintenance-free.
Anyone who has visited a wind farm knows the interior of a turbine tower is actually quite limited. The bottom distribution cabinet, converter cabinet, and control cabinet are packed together, leaving little room for safety equipment. And the tower is not a constant-temperature environment — in summer the metal shell bakes in the sun and internal temperatures can climb past fifty degrees; in winter, towers at northern wind farms routinely drop to twenty or thirty degrees below zero.
Add the continuous vibration from turbine operation, and conventional fire equipment placed inside is either the wrong size or unable to withstand the vibration and temperature swings. As a result, many wind-farm tower distribution cabinets have had no fire protection at all since the day they were installed.
Joint heating. The bottom tower distribution cabinet handles the power collection and distribution of the entire turbine, with many cable joints and high currents. Current fluctuates frequently during pitch and yaw, making thermal expansion and contraction at joints far more severe than in typical industrial settings. Loose terminal blocks and aging insulation are potential heating points.
Condensation issues. Coastal and mountain wind farms have large day-night temperature swings, and the tower interior easily forms condensation. Condensation inside the distribution cabinet lowers line insulation and, in severe cases, can cause short circuits.
Vibration-induced loosening. Continuous low-frequency vibration occurs in the tower during operation. Over time, wiring terminals and screw fixtures inside the cabinet may loosen. This loosening is not visible normally, but it raises contact resistance and progressively increases heat generation.
Delay from unattended operation. Most wind farms do not keep someone next to every turbine. Once a tower distribution cabinet catches fire, the time gap from ignition to discovery may be half an hour or longer. For an electrical fire, half an hour is enough to spread from one joint to the entire cabinet.
EAPD installation is straightforward — find a suitable spot inside the cabinet, peel the adhesive backing, or fix it with the magnetic base. No drilling into the cabinet door, no power cable to run, and no impact on the cabinet's original structure or wiring.
Once installed it does several things:
All data is uploaded to the ICOP platform. O&M staff at the control center open a computer or phone to see the real-time temperature curve and historical alarm logs of each turbine tower distribution cabinet. No need to climb the tower just to check one cabinet.
| Protection rating | IP65, suited to the high-humidity, condensation-prone tower interior |
|---|---|
| Operating temperature | -40°C to +85°C |
| Trigger temperature | 140°C ±10°C |
| Installation | Magnetic / adhesive / clip; no drilling or wiring |
| Response speed | From trigger to agent release ≤ 3 seconds |
| Communication | 4G / WiFi / wired, selected per site conditions |
| Service life | ≥ 5 years, maintenance-free |
Aerosol suppression units have been used inside towers for a while, but the problem is residue after discharge, which is troublesome to clean and is somewhat corrosive to electrical contacts. Ultrafine dry powder has similar issues.
Automatic sprinklers are rarely installed in towers — water entering the equipment basically ruins it, and in winter the low-temperature environment carries pipe-freezing risk.
The Novec 1230 agent used by EAPD discharges as a gas, non-conductive and leaving no residue. For electrical environments such as tower distribution cabinets, clean agents are more suitable than powder or water-based solutions.
This solution is designed with reference to the following standards:
We provide a targeted deployment plan based on your turbine model and distribution cabinet configuration
Submit your requirements →Wind tower cabinets are physically constrained spaces, mounted high on the tower structure, and subject to vibration, temperature variation, and intermittent access. The protective device installed there has to fit the geometry, operate reliably under vibration, and survive the temperature swings of a tower that sees sun, cold, and operating heat in cycles. CHILION's wind tower solution specifies equipment that meets those physical constraints. The protective logic is configured for the variable loading that the cabinet sees throughout the day and is engineered to produce trustworthy signals in a setting where many instruments would generate false alarms. The maintenance model respects the access constraints: routine inspection is bundled with the customer's existing scheduled climb visits where geography permits, rather than requiring additional climb events.
Tower-climb work is a scheduled, permit-controlled activity in any well-managed wind farm. CHILION's deployment methodology is built around that constraint. Inspection visits for the cabinet instrumentation are bundled with scheduled climb visits where the customer's calendar permits, and the CHILION delivery team follows the customer's permit-to-work and lockout-tagout procedures rather than imposing a parallel process. The maintenance record is structured to be incorporated into the customer's existing tower-maintenance documentation. The result is a deployment that the operations and safety teams adopt without friction, because the methodology respects the realities of working at height in a regulated environment.
Long-term operational considerations include spare-parts policy, end-of-life planning, regulatory drift, and personnel turnover inside the customer's organization. A protective-device deployment that ignores these considerations produces a system that works well at commissioning but deteriorates silently across the second and third years. Our deployments are designed around these considerations from the start, with documentation that the customer team can refresh across personnel changes.
How do we plan for personnel turnover?
This section reflects the deployment practice we've refined across the installed base. Customers who want more detail on the specific topic for their site can request a focused engagement through the contact form on our contact page.
Long-term operational considerations include spare-parts policy, end-of-life planning, regulatory drift, and personnel turnover inside the customer's organization. A protective-device deployment that ignores these considerations produces a system that works well at commissioning but deteriorates silently across the second and third years. Our deployments are designed around these considerations from the start, with documentation that the customer team can refresh across personnel changes.
How do we plan for personnel turnover?
This section reflects the deployment practice we've refined across the installed base. Customers who want more detail on the specific topic for their site can request a focused engagement through the contact form on our contact page.
Long-term operational considerations include spare-parts policy, end-of-life planning, regulatory drift, and personnel turnover inside the customer's organization. A protective-device deployment that ignores these considerations produces a system that works well at commissioning but deteriorates silently across the second and third years. Our deployments are designed around these considerations from the start, with documentation that the customer team can refresh across personnel changes.
How do we plan for personnel turnover?
This section reflects the deployment practice we've refined across the installed base. Customers who want more detail on the specific topic for their site can request a focused engagement through the contact form on our contact page.
Can routine inspections be combined with scheduled climbs?
Yes, the deployment variant for tower installation is specified for the vibration and temperature ranges of tower service.
Response time is comparable to ground-level installations, but the protective logic is calibrated for the variable loading typical of tower service.
Maintenance records are produced in a format that the customer's existing tower-maintenance documentation can absorb directly.