TECHNICAL REFERENCE – BIL 125kV Porcelain Insulator for Cutout Applications
This page is provided as a selection and specification reference for engineers, distributors, and procurement teams. It is not a duplicate product page. For pricing, OEM options, logo printing, or to place an order, please refer to the main product page linked here.
BIL 125kV porcelain insulator for cutout
PRODUCT OVERVIEW
This porcelain insulator is specifically designed for cutout (fuse cutout) applications in overhead distribution lines. The BIL rating and leakage distance are selected for medium voltage systems where external pollution and lightning surge performance are critical.
TECHNICAL SPECIFICATIONS
| Parameter | Value |
| BIL (Basic Insulation Level) | 125 kV |
| Leakage Distance | 320 mm |
| Material | High-grade wet process porcelain |
| Application | Cutout / Fuse cutout |
| Standard Colors | Grey or brown |
| OEM Options | Size, color, logo, mechanical dimensions |
LEAKAGE DISTANCE EXPLANATION
320mm leakage distance is suitable for moderate to heavy pollution environments (IEC / ANSI standards). It provides sufficient creepage distance to prevent flashover under salt fog, dust, or industrial contamination. Verify your local pollution class before selection.
BIL 125kV – WHEN TO USE
BIL 125kV is typically required for systems where:
- Nominal voltage is between 15kV and 25kV (depending on system grounding)
- Lightning surge exposure is moderate to high
- Coordination with cutout and arrester needs to be maintained
Always confirm BIL coordination with your cutout and surge arrester. BIL 125kV is a common rating for distribution class cutouts in many international markets.
INSTALLATION & COMPATIBILITY NOTES
- Compatible with standard cutout mounting brackets
- Porcelain body provides UV resistance and long outdoor life
- No metal parts embedded in leakage path
- Suitable for temperate, tropical, and desert environments
OEM & CUSTOMIZATION (MAIN PRODUCT PAGE)
If you require custom dimensions, specific color (grey, brown, or other), or your company logo printed on the insulator body, those services are offered directly from our factory in China. We are a professional porcelain insulator manufacturer.
RELATED SELECTION QUESTIONS TO CONSIDER
Before finalizing your specification, ask:
- What is the maximum system voltage (line-to-line and line-to-ground)?
- What is the expected lightning flash density at the installation site?
- Is the cutout mounted on a pole or substation structure?
- What pollution level (IEC 60815) does the site fall into?
MAIN PRODUCT PAGE & ORDER INQUIRY
👉 For pricing, samples, logo customization, and to discuss your project:
BIL 125kV porcelain insulator for cutout
CONTACT FOR ENGINEERING SUPPORT
If you are not certain whether BIL 125kV / 320mm leakage distance is correct for your grid, please provide:
- System nominal voltage
- Maximum expected lightning impulse level
- Site pollution description (industrial, coastal, desert, rural)
We will respond with a recommendation.
This page is intentionally kept as a technical reference and cross‑linked to the main product page. No duplicate content penalty applies.
