(This case is anonymized; client name and specific location are withheld.)
Project Background
A municipal road landscape lighting project in North China required outdoor distribution boxes along the road to power streetlights, landscape lighting, and traffic signals. The original design used ordinary powder-coated cold-steel enclosures, but the first rainy season brought frequent tripping and visible rusting, seriously affecting road lighting quality and the city’s public image.
Client Pain Points
- Outdoor enclosures with inadequate waterproofing — frequent short-circuit tripping in rain
- Powder coating peeling off, visible rust within two years
- No lightning protection — high damage rate during thunderstorm season
- Unreliable earth-leakage protection, posing safety hazards
Xiaoyang Solution
For the exposed, rain-prone, wide-temperature environment, we redesigned the outdoor distribution solution:
- Enclosure material: 304 stainless steel, replacing powder-coated cold steel to fundamentally solve rusting
- IP rating: IP65 with PU foam gaskets and waterproof cable glands
- Surge protection: SPD installed in every box to prevent lightning overvoltage
- Smart earth-leakage protection: Communication-enabled leakage breakers for remote alarm
- Bottom cable entry: Bottom-entry glands to eliminate top/side water ingress risk
Results
| Metric | Original Design | Xiaoyang Solution |
|---|---|---|
| Rainy-season tripping | Frequent (multiple per month) | Zero trips in a full year |
| Enclosure rust | Visible in 2 years | No rust after 3 years |
| Maintenance cycle | Monthly inspection | Extended 3× (quarterly) |
| Lightning damage | 2–3 boxes per year | Zero |
The upgraded project passed municipal acceptance. At the 3-year inspection, enclosures remained intact with gaskets still elastic.
Explore Municipal Power Solutions
If your municipal project faces outdoor enclosure waterproofing, corrosion, or lightning protection issues, view our municipal power distribution solution — our engineers recommend the right material and rating for your site conditions.
Related Products
- IP65 Outdoor Waterproof Enclosure — 304/316 stainless steel options
- Low-Voltage Distribution Box — street/landscape lighting power