Why Cable Protection is Essential for PV Systems
When installing photovoltaic systems, the safe routing of solar cables through the roof is an often underestimated problem. Provisional solutions lead to cable breaks, power loss, or fire hazards.
- Friction against rough tile edges
- Sharp edges from improper drilling
- Roof movements due to temperature differences and wind
- UV radiation and weather influences
Risks of Incorrect Cable Routing
Abrasion Damage to Cable Insulation
Solar cables laid over rough tile edges - the insulation layer becomes brittle. Consequence: Corrosion, contact resistance, power loss, and in the worst case, a short circuit.
Mechanical Damage
Roofs move due to thermal expansion, wind, and snow loads. Cables without elastic sheathing get pinched.
UV Radiation and Weather
Inferior plastic protective sheaths become brittle due to UV radiation. Good roof penetrations protect with UV-resistant material.
Abrasion Protection Through Roof Penetrations
- Elastic Collar: Flexible, UV-resistant plastic protects against tile contact
- Abrasion-Resistant Surface: Resistant to friction during roof movements
- Secure Fastening: Prevents slipping and twisting
- UV-Resistant Material: Technical plastic for decades of use
3-Step Installation
Step 1: Material Selection
105 mm (beaver tail), 125 mm (Frankfurt pan tile), 150 mm (deep tile types). Choose a NEXCAPE cable roof penetration suitable for the tile type.
Step 2: Installation
Hook the roof penetration into the tile from above. Never drill holes in tiles!
Step 3: Insert Cables
Push PV cables through the elastic collar. No screw connections required.
Why NEXCAPE is the Installer's Solution
No MC4 removal necessary: MC4 connectors remain on the cable. Time saving: 10-15 minutes per cable, 30-90 minutes per system!
- UV-resistant: Durable for 30+ years
- Flexible Design: All common tile types
- Abrasion Protection: Highly resistant
- B2B Packages: 20 to 1,000 units
Avoid Common Mistakes
Mistake 1: Cables over sharp tile edges - use a roof penetration with a collar
Mistake 2: Drilling into tiles - Hook in instead of drilling
Mistake 3: Too tight a collar - Choose the appropriate size
Contact and Consultation
Email: support@nexcape.de | Phone: 07054 927999 | Mon-Fri 8:00-17:00
