Underside view of the EXTICOV LHD fire-resistant cover on SANERGRID concrete pit 
Power transformer installed on pit with SANERGRID fire-resistant cover 
Detail view of the hot-dip galvanized grating on the SANERGRID EXTICOV LHD fire-resistant cover 
SONEC installing the SANERGRID EXTICOV LHD cover and access hatch 
Custom grating adjustment by SONEC 
Step of installing the SANERGRID fireproof cover 
Installation in progress of anti-slip gratings on each pit by SONEC 
Final fireproof cover under the transformer installed by SONEC
📍 Objective: to install an EXTICOV LHD fireproof cover at a hydroelectric site, in order to protect the pit of a Kolektor Etra (Energetski Transformatorji d.o.o.) power transformer.
🧩 Step by step:
1️⃣ Delivery on site of the special EXTICOV LHD fireproof cover 🚛
2️⃣ Installation of support structures and preparation of the pit 🏗️
3️⃣ Installation and precise adjustment of the fireproof gratings 🔩
4️⃣ Grounding and electrical connection of the whole system ⚡
5️⃣ ✅ Site ready to safely host its transformer with fire and environmental protection 🧯🌍
🔵 Thanks to the effective coordination of our teams, this project was completed on time and safely.
🙏 Thank you to our client for their trust, 👏 and congratulations to the entire SONEC team for the quality of the on-site execution.
🛡️SANERGRID’s EXTICOV LHD systems are designed to :
✔️ Quickly stop the spread of fires by smothering 🔥
✔️ Withstand the loads of operators working around power transformers 👷♂️
✔️ Simplify pit maintenance and ensure an anti-slip function ⚙️
✔️ Integrate into any type of high-voltage concrete pit, replacing fireproof pebbles or stones that get dirty and clogged over time 🪨➡️❌
📩 Learn more: Fire suffocating covers for pits
