Strengthening of safety system of power cables in trenches and associated work with digital liner heat detection cable system LHDC in 220 kV Switch yard at 400 kV Substation, Rishikesh

Providing, fixing and installation of Linear Heat Detection System for cable trenches in 220 kV switchyard at 400 kV Substation Rishikesh; UL listedwith fixed alarm temperature and trigger the alarm single at factory set temperature of 70/ 90 deg as per, 35mtrs one zone will be install complete in all respect.area of all trenchs in switchyard including switchyard to control room. • The Digital LHDC construction should be suitable for use in a harsh environment. • The Digital LHDC shall comprise of a twin core cable twisted under tension. and have a special heat reactive .polymer insulation. • The Digital LHDC shall have an overall protective sheath which is resistant to Hydrocarbons, Chemicals, and be UV resistant. • The Digital LHDC shall have a maximum conductor resistance of 100Ω/km (at 20°C). • Final installation shall ensure that the Digital LHDC is not in contact with any heat sink material which may delay the sensing process. • The Digital LHDC shall be terminated with manufacturers’ Industrial grade junction boxes. • The Digital LHDC shall have a fixed alarm temperature of 70/90 deg or and be capable of installation where intrinsically safe configurations in hazardous areas are required. • The Digital LHDC shall be UL approval and be Certified.Alarm : Technical Specifications: Temperature: 700-070 = 70°C 700-090 = 90°C 700-180 = 180°C Max Ambient Temperature: 700-070 = 45°C 700-090 = 70°C 700-180 = 150°C Min Operating Temperature: -65°C Min Installation Temp: -40°C Outer Sheath: Nylon (70°C & 90°C - Black)* Hytrel (180°C - Violet)* Stainless Steel Armour Option* UV & Chemical Resistant Voltage Rating: 150Vdc (Dielectric Test 500Vdc) Outer Diameter: (Maximum) 4.0mm ± 0.3mm Stainless Steel Armour 4.5 ± 0.3m

Providing, fixing and installation of LHDC Controller Logic module Panel DXc1/4007ES or compatible addressable fire alarm Control panel LPCB approved support up to 1-5 loop intelligent single loop addressable panel 6#40 characters ,blue liquid crystal display panel inbuilt sound 105 db operational environment 2 degree centigrate to 80 degree configuration by keyoad and PC the panel is compatible with add on feature. as per site requirment/instruction of site engineer complete in all respect. • Expandable Logic module 230 VAC input, • Data logging • AC 230 V • Relay, max. 10 A, • Maximum configuration 24DI/20DO/8AI/8AO, • Power supply AC/DC 115/230V, incl. clock, • Noise emission limit class B group 1, • Ambient temperature 0 to 55°C

Providing, fixing and installation of Manual Call Point to report the fire in case of Digital LHDC fire incident is visually reported.

Providing, fixing and installation of Flameproof Outdoor Hooters cum Strobe to trigger the alarm in case of Digital LHDC fire incident including T&P and all.

Providing, fixing and installation of Monitor module with termination 4090-9001 for zone control and required to operate the LHS.

Back box with accessories with EOL Register, glander, termination block, wheatherproof junction box, Pvc pipe, support wire as per site requirment including T&P and all.

FDA System Programming Commissioning and Gateway Programming with testing and handover for LHS only

Providing, laying and connections of 2 core, 1.5 Sqmm, FRLS, Armored signal cable for LHS interfacing with FDA loop as per site requirment.

Miscellaneous work like Power point arrgement ,laying of power cable at different locations including other electrical work as per requirment, Power arragemaent of all panels open and close the trench of switchyard, civil work if required, fabrication work if any for cable hanging and clearing of grass, bushes in trench as per required for strengthing of LHS system as per instruction of site engineer.