Why Cable Protection for PV Systems is Essential
When installing photovoltaic systems, the safe routing of solar cables through the roof is an often underestimated problem. Provisional solutions lead to cable breakage, power loss, or fire hazards.
- Friction against rough tile edges
- Sharp edges from improper hole 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, short circuit.
Mechanical Damage
Roofs move due to thermal expansion, wind, and snow loads. Cables without elastic sealing get crushed.
UV Radiation and Weather
Inferior plastic protective sheaths become brittle due to UV radiation. A good roof penetration protects with UV-resistant material.
Abrasion Protection Through Roof Penetrations
- Elastic Cuff: 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
3-Step Installation
Step 1: Material Selection
105 mm (beaver tail), 125 mm (Frankfurter Pfanne), 150 mm (deep tile types). Choose the NEXCAPE Cable Roof Penetration suitable for your tile type.
Step 2: Installation
Hook the roof penetration into the tile from above. Never drill holes in tiles!
Step 3: Insert Cable
Push the PV cable through the elastic cuff. No screw connections necessary.
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: 30+ years durability
- Flexible Design: All common tile types
- Abrasion Protection: Highly resistant
- B2B Packages: 20 to 1,000 pieces
Avoid Common Mistakes
Mistake 1: Cables over sharp tile edges - use roof penetration with cuff
Mistake 2: Drilling into tiles - hook in instead of drilling
Mistake 3: Too tight cuff - choose the appropriate size
Contact and Consultation
Email: support@nexcape.de | Phone: 07054 927999 | Mon-Fri 8:00-17:00
Find out more at dachdurchfuehrung24.com
From our manufactory: All PV cable roof penetrations
Suitable PV roof penetrations from our manufactory: All PV cable roof penetrations · DIY version without MC4 removal · 125 mm for Frankfurter Pfanne · 150 mm for almost all roof tiles
