SPL REPAIR REROUTING OF HT CABLE 11 KV FROM COD POWER HOUSE TO HQ DGBR OF AGE U ELECT SUPPLY NO 1 UNDER GE U ELECT SUPPLY DELHI CANTT 10

Amount

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr in depth for taking out/for laying under ground cables/pipes etc. and getting out in soft/loose soil complete all as specified and as directed.

Returning filling in, including spreading levelling watering and well ramming in layers not exc. 25 cm in soil complete all as specified and as directed.

Removing excavated material (soils) to a distance n.exc 50 metres and depositing where directed at a level not exceeding 1.5 metre above the starting point complete all as specified and as directed.

Supply and spreading fine river sand in trenches for cushioning of under ground cable complete all as specified and as directed. Note:Only punned thickness 18cm will be measured and paid.

Supplying & laying unreinforced pre cast concrete cable cover class HV type 1 flat size 300 x 180 x 40mm for cable protection complete all as specified and as directed.

Supply, laying, testing and commisioning cable XLPE insulated screened PVC bedded galvanised steel strip or wire armoured, electric power cables (heavy duty) with multi stranded aluminium conductor, 11 KV grade, of size 240 Sqmm, 3 core, IS-7098 marked suitable for HT 11 KV(E) system, laid in treches/ducts/encased in pipe/ fixed to pole including jointing and testing complete (State through joint shall not be done on length less than 500 meter). Note : Cable joints shall be measured and paid seperately under respective item of this BOQ.

Supply laying, testing and commisioning cable XLPE insulated screened PVC bedded galvanised steel strip or wire armoured, electric power cables (heavy duty) with multi stranded aluminium conductor, 11 KV grade, of size 185 Sqmm, 3 core, IS-7098 marked suitable for HT 11 KV(E) system, laid in treches/ducts/encased in pipe/ fixed to pole including jointing and testing complete (State through joint shall not be done on length less than 500 meter). Note : Cable joints shall be measured and paid seperately under respective item of this BOQ.

Boring of holes under road, pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.6 mpa working pressure complete all as specified and as directed.

Supply, laying and testing and commissionig cable jointing kit for 11 KV (earthed) grade cable for Indoor termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 3 core 185 sqmm complete all as specified and directed,

Supply, laying and testing and commissionig cable jointing kit for 11 KV (earthed) grade cable for Indoor termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 3 core 240sqmm complete all as specified and directed,

Supplying & Fixing 100 mm bore GI Pipe light grade with necessary accessories/ fittings for cable protections complete all as specified and as directed.

M&L for Outdoor type Straight through, jointing kit, heat shrinakable for 11KV grade UG cable with 3 core 185 sqmm Aluminium conductor complete along with jointing material complete all as specified and as directed.

M&L for Outdoor type Straight through, jointing kit, heat shrinakable for 11KV grade UG cable with 3 core 240 sqmm Aluminium conductor complete along with jointing material complete all as specified and as directed.

Supplying , installation, testing and commissioning of 11 KV, 630 Amps having short circuit capacity 20kA/3-sec, Outdoor (IP54), RMU (Ring main unit) 5-way comprising of 02 Nos motorized operated Load Break Switch and 03 Nos 630 Amp Fixed-Type motorized spring-charging VCB electrolytic grade copper busbars all inside single, gas-filled, robotically welded stainless steel 304 (Non Ferrite Non Megnetic Grade) tank with min. thickness 3+0.5 mm, IP 67 Degree of Protection , internal-arc classified 20kA/1sec, on-site-repairable with site replacable bushing/coupling/mechanism, gas refilling etc. The enclosure shall have padlockable double-door access with anti-theft higes, fully covering the front facia and cable boxes to ensure fail-safe anti-theft protection. The unit alongwith Bus-connected, fixed-type Auxiliary transformer shall include the following along with all necessary accessories and fittings as required at site complete all as specified and as directed.

(A) 02 Nos. Incoming Load Break Switch module each consisting of following accessories :- (i) Each switching-unit is designed as a three position switch. This three function switch combines the functions of switch-disconnector and earthing switch. (ii) 11kV, 630A Load Break Switch with interlocked line-earthing scheme both short circuit current - 20kA/3-sec, Making Capacity - 50kAp -01 No (iii) Auxiliary contacts - 1NO + 1NC-01 No (iv) Spring-assisted snap-action motorized mechanism with un-inhibited operating shaft for emergency manual operation with integrated earthing switch -01 No (v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 300 Sqmm , 3 Core , XLPE AL cable termination in live-condition. Each Set of 03 (vi) Right angle boots (push on type)-Each Set of 03 (vii) Arc proof cable covers having cable entry from bottom , front with Interlocking mechanism including earth switch -01 No (viii) Capacitive voltage indication fixed type system as per IEC61243 with LED - 01 Set (ix) Fault Passage Indicator - It is to be provided for each incomer load break unit, FPI with LED/digital display to be added for detection of cable fault-01 No (x) ON, OFF, EARTH mechanical indication on the front mimic of the panel - 01 No "

(B) 03 Nos. Outgoing VCB module each consisting of following accessories :- (i) Each function-unit consists of a vacuum-circuit breaker in combination with a three position-switch.The three-position-switch fulfills the operation of the disconnector-function and earthing function. (ii) 11kV, 630A Fixed-Type VCB module with series disconnector cum earthing switch of short circuit breaking current/withstand - 20kA/3-sec, Making Capacity - 50kAp-01 No (iii) Aux. contacts - 1NO+1NC-01 No (iv) Stored-energy motorized high-endurance spring charging mechanism (M1+), with inbuilt spring-charging lever and mechanically latched ON/OFF push-buttons to allow handle-less and un-inhibited operation -01 No (v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 185 Sqmm , 3 Core, XLPE AL cable termination in live-condition. Each Set of 3

(vii) 3O/C + 1E/F self powered numerical protection relay with Low and High set for Over current and Earth Fault. Relay should have facility to display the maximum loaded phase current also.Relay shall record minimum 5 fault records with time stamping. Relay shall be communicable with RS 485 Port on MODBUS Protocol-01 No (viii) Associated ring-core cast-resin insulated CTs 100/1 Amp , 2.5 VA, 10P10 for protection - Each Set of 3 (ix) Arc proof cable covers with self Interlocking mechanism with earth switch -01 No (x) Capacitive voltage indication fixed type system as per IEC61243 with LED -01 No (xi) Push button for breaker trip (xii) Shunt trip coil 24V DC - 01 (xiii) ON, OFF, TRIP mechanical indication on the front mimic of the panel - 01. (xiv) Emergency Trip Push Button - 01.

(C) 01 No. Bus-connected, fixed-type Auxiliary transformer with floor-mounted compartment of matching height and depth, positioned along-side RMU to provide required aux. supply and metering consisting of following accessories :- (i) 1-Ph (11kV/rt3):230VAC, 500VA Auxiliary transformer-01 No (ii) 2x12 Volt DC battery-01 Set (iii) Battery charger-01 No (iv) HRC fuse-links for primary side isolation and AC/DC MCBs for secondary isolation-01 Set (v) Voltmeter & RYB LED Indications to confirm AC/DC supply availability-01 Set (vi) Anti-condensation space-heater-01 No (vii) CFL lamp for illumination and 3-pin socket with switch -01 No

(D) Additional equipment deliverd separately or mounted seperately :- (i) Operationg Handle for Manual Isolator/Disconnector/Earthing Operation-02 Nos (ii) Standard Manometer -01 No (iii) Operation and Maintenance Manual -01 No (iv) Installation & Commissioning Manual -01 No (v) Cable clamping provision (standard) -01No

Note:- (i) It is preferable to have all feeder-switches inside single stainless steel compartment with incomer feeders at the extremities to prevent chances of failure due to plug-in coupling arrangement. (ii) Necessay interclocking arrangement shall be provided for safety and operations (iii) Above switchgear shall confirm to relevant IEC (62271-200) for design, manufacturing and internal arc compliance. Any claims towards internal arc compliance, number of mechanical/electrical/short-circuit operations, gas-leakage rates etc. shall not be accepted unless proven via type-test reports of model being offered. (iv) Cost of construction of foundation including construction material, necessary earth work and excavaton as per manufacturer design for RMU complete all as required at site are deemed to be included in the quoted rate.

Earthing in replacement complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 2.25 m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to galvanized iron strip 32mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel as shown in electrical plate No 3 of SSR Part I, connected to earth test point and the equipment on the other nuts and washers of galvanised ironside complete all as specified and as directed, including testing and commissioning complete all as directed. Note : (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in any type of soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement as in cover & frame for pit, funnel, watering pipe 20 mm bore GI pipe light grade, protection pipe 40 mm bore GI pipe medium grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI lead wire and protection pipe upto 7.5 meter beyond the earth plates electrode.

Supply, installation and testing of HT CT operated Trivector Meter with the following specifications: • Meter Type: HT 3 Phase 3 Wire Electronic Tri vector Meter • Standard: IS 13779:1999 / CBIP 88 • Accuracy: Class 1.0 • Voltage and Current rating: (i) Reference Voltage - 110 V (ii) Basic Current (Ib) - 5 A (iii) Maximum continuous current (Imax) - 10 A • Rated Frequency (variation) - 50Hz (±5%) • Power consumption: (i) Voltage circuit: Less than 1.5 W and 10 VA per Phase at reference voltage, reference temperature and reference frequency (ii) Current circuit: Less than 1 VA per phase at basic current, reference frequency and reference temperature • Display type: 8 digit 7 segment backlit LCD display, not less than10 mm character height • Display in the event of Power Failure: Internal battery backup for LCD display • Communication port: (i) Galvanically isolated Optical complete all as specified and as directed.

Boring of hole under road/pavement/hard standing or any other situation by mannual means and suitable for passing of GI pipe 100 mm bore and making good both ends complete all as specified and as directed.

MV Engineers And Contractors

Vijay Electricals

M/s JAIMAA ASSOCIATES

Hitech Erectors Pvt. Ltd.

DS CONSTRUCTION

M P TYAGI ENGINEERS AND CONTRACTORS