Gilon, is a settlement name on top of the mountain that the tunnels bore through from West side, Acco to Eastern side, Karmiel in the Upper Galilee of ISRAEL.

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Two parallel tunnels were bored from West to East side at a length of 4628m, cross-section of approximately 50Sqm each Tunnel, while at every 250m a connection tunnel bored between North Tunnel to South Tunnel reaching 18 Connection Tunnels in Total.

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Those Connection Tunnels are first for evacuation in term of Emergency from one side to the other, besides during the design all Connection Tunnels used for Technical Rooms, MV and Transformers, LV, VLV and Communication.

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Other Connection Tunnels designed for Water Pressure Reduce using BERAMD systems.

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Energy Building contains three different buildings were erected at the East Portal, were two separated MV feeders of 22Kv from IEC entering the Energy Building A and the second to Energy Building B to the IEC metering rooms.

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Energy Buildings has four Generators, Three of them 2100KVA are back up to the IEC Power to both Tunnels with Three Transformers 2500KVA , 0.4/22Kv and the forth Generator 1600KVA is for the Building back up only.

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At Energy building C there is the Control Room, which controlling through SCADA – (Supervisory Control & Data Acquisition), all consumers inside the Tunnels.

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All infrastructures for MV, LV & VLV cables installed during construction on both side walks of railways Tunnels and Connection Tunnels Basements.

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22KV IEC line 1 connected from Energy building at East Portal to Connection Tunnel #17 North then bridging another 5 Connection Tunnels from the North Side and at CT#2 makes a loop back through South tunnel to the same 5 connection tunnels then back to Energy building by the second 22Kv IEC Line 2.

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Major power consumers inside the Tunnels are the Jet Fans by Zitron, 30 Jet Fans of 30Kw each, were installed at each Tunnel to evacuate and control the Smoke in case of Fire inside the Tunnels.

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Each power connection tunnel contains 800KVA Transformer by IMEFY at North Side, then to a LV switchboard with Change Over system to the Southern 800KVA Transformer and LV switchboard.

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In Addition to the Jet Fans as a major consumers, there are the emergency lighting fixtures all along the tunnels in both sides which fed by both essential power backed up by Generator 230V AC and Central battery System 216V DC.

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Other type of emergency lighting fixtures triangle shape with green arrows towards the connection tunnels, fed also by both essential power backed up by Generator 230V AC and Central battery System 216V DC.

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Dynamic Escape Route Fixtures (DER) installed along both sides of each Tunnel at lower level, which operates by Linear Heat Fiber Optic Sensor as per pre designed scenario to direct and evacuate passengers in case of Emergency / Fire.

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Working lights at each Connection Tunnel and technical rooms using led lights fed by central battery system.

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Exit lights inside each connection tunnel fed by both essential circuits backed up by Generator and fed by independent internal battery; all emergency lights operating at least 90minutes in case of power OFF.

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All power cables inside the Tunnels towards the Energy building are Fire Proof cables and Halogen Free.

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More details, photos, explanations regarding our preparations for the electrification systems in the future, EMC protection for every single device inside the Tunnels will be provided at my detailed presentation