Maintenance of various capacity of transformer at various location of Bilimora Rural Sub Division under the jurisdiction of Valsad Rural Division.

Name of work: Maintenance of various capacity of transformer at various location of Bilimora Rural Sub Division under the

juridiction of Valsad Rural Division.

Mat Work Cost of Lab

Sr.No. Description Unit Total

Used Done Mat Charge

Labour charge for prviding of HT/LT bushing goti if required

1.1 Replacement of LT bushing goti/ Rubber washer No. 40

1.2 Replacement of HT bushing goti/ Rubber washer No. 40

Providing of half stud on LT side up to 100 KVA TR if required

Providing of AL. Patta on LT side up to 200 KVA TR if required

Providing of AL. Patta on LT side up to 500 KVA TR if required

Check and tight earth connection, if required provide lugs &

5 nut-bolt to the neutral terminal of TRF and to the body LS 50

terminal of TRF and dist box earth

Replacement of demage LT cable with new one of right

capacity (cable provide by DGVCL)

Providing of new termination in form of R,Y,B and N core

including PVC tape

7.1 Termination of 25/50/70 Sq.mm cable No. 8 20

7.2 Termination of 300 Sq.mm cable No. 45 20

7.3 Termination of 95/120/150 Sq.mm cable No. 16 20

7.4 Termination of 185 Sq.mm cable No. 23 20

7.5 Termination of 240 Sq.mm cable No. 32 20

Measurement of voltage and ampere during maximum load

period minimum 10 nos. of T/C per day

Check oil leakage from drain off valve/gasket/tank leak etc.

9 and if leakage found at attend by providing adhasive material, No. 150

m-seal and give detail of leakage and topping of oil to maintain

proper oil level (oil provide by DGVCL)

Checking and replacement of LT Dist box if required (Dist box

provide by DGVCL)

Checking and replacement of Kit-kat fuse if required (Kit-kat

fuse be provide by DGVCL)

11.1 100 amp kit-kat fuse No. 20

11.2 200 amp kit-kat fuse No. 20

Checking and replacement of HRC fuse base if required (HRC

fuse base provide by contractor on std. make)

12.1 630 amp HRC fuse base No. 682 50

12.2 400 amp HRC fuse base No. 525 50

12.3 250 amp HRC fuse base No. 370 50

Checking and replacement of HRC fuse bridge if required

(HRC fuse provide by contractor on std. make)

13.1 630 amp HRC fuse No. 690

13.2 400 amp HRC fuse No. 490

13.3 250 amp HRC fuse No. 352

Providing of proper size of fuse element on HT side (on D.O.

fuse with cleaning of horns)

Providing and replacement of sundry items like

nut,bolt,washer etc. of appropriate size

16 General condition

Clean off all dirt etc from the body of the transformer and

tighten all nut-bolt etc.

Clamping of LT cable as per instruction of incharge supervisor

Cleaning of surronding area nearby transformer center,

treeming of tree branches, removing of crimpers etc.

Submission of the all activity done at location wise in JOB 150

16.4 prescribed proforma format with signature of incharge of

supervisor and contractor

Providing of breather if not available with transformer

(breather to be provided by DGVCL)

Providing of insulated jumper at HT side from D.O. fuse out

16.6 side to TC. All three nos. (Jumper wire will be provided by

Supply & providing of neutral earthing using G.I. strip (Size

mm x 3mm flat) to neutral terminal of X'mer and disl. Box

17 neutral terminal with 3 Mtr PVC rigid pipe. Earthing plate & 20 No. 255 595

Kg solt + 20 Kg coal. G.I. strip should be brought proper shap

up to the equipment (Earth registanance to be measured and

earth register to be maintained as per std norms of DGVCL)

18.1 LT Side Brass half stud with 2 no brass nut & washer of size

18.2 LT Side Brass half stud with 2 no brass nut & washer of size

19 LT Side Brass Nuts and washer

19.1 12 mm Brass LT side nuts No. 16 12

19.2 20 mm Brass LT side nuts No. 41 12

19.3 30 mm Brass LT side nuts No. 68 12

19.4 12 mm Brass LT side washer No. 10 12

19.5 20 mm Brass LT side washer No. 18 12

19.6 30 mm Brass LT side washer No. 20 12

Total Estimate In Words: Fifteen lacs only

Executive Engineer (O&M),

D.G.V.C.L., Valsad Rural Division.

1 The rates required with all taxes but exclusive of GST.

2 Party has to work at his own risk.

3 The contractor has to collect all the required materials from DGVCL store as well as credit the

4 Contractor should have to provide safety tools while working at site.