Tenders Are Invited For Adaptation Of The Electrical Installation In The Underground Sidewalk Of The Tourist Route (B18) In The Area Of ​​Cnkis Stara Kopalnia In Wałbrzych To The Applicable Mining And Geological Law

The Subject Of The Order Are Construction Works Consisting In Adapting The Existing Electrical Installation In The Underground Sidewalk Of The B18 Tourist Route In The Area Of ​​Cnkis Stara Kopalnia In Wałbrzych To The Applicable Mining And Geological Law. Construction Works Should Be Performed Based On Design Documentation Prepared By M.Eng. Waldemar Pięciński As Part Of The Investment Project Entitled Adaptation Of The Electrical Installation In The Underground Pavement Of The B18 Tourist Route In The Area Of Cnkis Stara Kopalnia In Wałbrzych To The Applicable Mining And Geological Law Construction Works Are Carried Out On A Historic Building, Entered In The Register Of Monuments No. 356/A/1-14/04 Of September 17, 2004, Therefore The Contractor Is Obliged To Meet The Resulting Requirements/Conditions, In Particular Related To Carrying Out Works And Obtaining Applicable Consents. The Ordering Party Informs That There Is Tourist Traffic In The Underground Walkway. The Work Should Be Carried Out In A Way That Minimizes Tourist Traffic, And Working Time Should Be Adjusted To Visiting Hours. As Part Of The Subject Of The Order, The Contractor Is Obliged, Among Others, To: To:• 1) Reconstruction Of The Electrical Installation. O Change Of The System From Tns To It (With An Insulated Neutral Point). O Adaptation Of The Installation To The Requirements Of The Geological And Mining Law. • 2) Rgko Main Switchgear. Replacement Of Devices With A Type With A Disconnectable Neutral Circuit. O Installation Of A Switch On The Wall Next To The Rgk. O Installation Of A Separation Transformer And An Insulation Monitoring System. O Maintaining The Existing Casing And Wiring. • 3) Switchboards T1–T6o Disassembly Of Existing Switchboards.O Installation Of New Switchboards In The It System, In Ip65 Housings.O Connection Of Existing Cables Without Changing The Cable Routes.O Installation Of Electric Heaters (10 W) Controlled By A Time Relay.O Installation Of Ventilation Glands Against Moisture Condensation.• 4) Junction Boxes.O Replacement Of All Gel Boxes With Ipx8 Protection Level.• 5) Inspection And Commissioningo Measurements And Checking The Operation Of The It System.O Adjustment Of The Parameters Of The Heaters And The Insulation System.• 6) As-Built Documentationo Preparation Of As-Built Drawings And Measurements.O Submission Of A Set Of Approvals, Certificates And Declarations Of Conformity.