KMC/S_D/DLPS/LA/26-27

Earthing Installation – with Copper Plate electrode : Earthing with Copper plate (610x610x3mm size) having weight of 9.84 Kg and 1 No. 25x5mm Copper strip (3.20 mt long) & 1 no. 6 sqmm PVC insulated stranded Copper wire (4 Mt long) incl. S & F 15 mm dia GI pipe (ISI-Medium) protection (4 mt. long) to be fillied with bitumen, partly under the ground level & partly above ground level to an average depth of 3.65 Mts. below the ground level and restoring the surface duly rammed incl. providing 3.0 mt long, 25 mm dia GI pipe (ISI-Medium) for periodic treatment, incl. providing masonery enclosure on the top of the earth electrode of overall size 86.36x86.36x46cm deep (below Ground level) complete with cemented brick work (1:6) of 25 cm width, duly plastered with cement morter (inside) CI hinged inspection cover of size 36.56x35.56cm with locking arrangement, GI reducer and treatment of soil by using salt & charcoal or coke for plate electrode . ........ Rate as per sch. PWD Elect-Mch. Sch. 2017 pg. G3, item no.7

Extra for treatment of soil by using salt & charcoal or coke for plate electrode. ………. Rate as per sch. PWD Elect-Mch. Sch. 2017 pg. G2, item no.3 b

Extra for providing masonery enclosure on the top of the earth electrode of overall size 86.36 cm x 86.36 cm x 46 cm deep (below Ground level) complete with cemented brick work(1:6) of 25 cm width duly plastered with cement morter (inside) CI hinged inspection cover of size 36.56 cm x 35.56 cm with locking arrangement, GI reducer including drilling of 46 nos. 12 mm dia holes on the GI pipe … ........ Rate as per sch. PWD Elect-Mch. Sch. 2017 pg. G2, item no.3 a

S & F Lightning Conductor Air Terminal made of 20 mm dia 1000 mm long GI pipe (ISI Medium) having five discharge prongs of 4 SWG GI (Hot Dip) wire at top duly soldered with 7/16 stranded GI (Hot Dip) wire and 85 mm dia 6 mm thick GI base plate at bottom incl. necessary holes etc. complete duly grouted on the parapet etc. in CC mortar ( 4:2:1)... ........ ....... Rate as per sch. PWD Elect-Mch. Sch. 2017 pg. J2, item no.14

Basic Rate of Materials: Copper Plate,Copper Strip (2"*0.2") approx 152 mtrs ……………… .... Rate as per sch. PWD Elect-Mch. Sch. 2017 pg. k3, item no.143

Earth Busbar : Supplying & fixing earth busbar of galvanized (Hot Dip) MS flat 65 mm x 8 mm on wall having clearance of 6 mm from wall including providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required…… .... Rate as per sch. PWD Elect-Mch. Sch. 2017 pg. G2, item no.4 d

Hiring charges for scaffolding arrangement including dismantling at the end of work and carriage, for LC installation, per storey of building per vertical run…. ... Rate as per sch. PWD Elect-Mch. Sch. 2017 pg. J1, item no.7

Cutting cornices/ steps etc. including cutting recess in buildings etc. & supply & fixing 15 mm bore (ISI-Medium) GI pipe protection as below and mending good damages to the building works: (b) Length above 0.5 Mtr… ....... Rate as per sch. PWD Elect-Mch. Sch. 2017 pg. J1, item no.4 b

S & F of 4 SWG GI (Hot Dip) wire on wall for the lightning conductor as required (for vertical run) with GI Staples (40 mm long) spaced not exceeding 1 Mtr. apart incl. mending good the damages to building works (excluding hire charges of scaffolding)........ .. Rate as per sch. PWD Elect-Mch. Sch. 2017 pg. J1, item no.3

S & F of 4 SWG GI (Hot Dip) wire on Parapet/Roof/Plinth/ Surface of wall for lightning conductor as required (for Horizontal runs) with 40 mm long GI Staples spaced not exceeding 1300 mm apart incl. mending good all the damages to the building works… … .. Rate as per sch. PWD Elect-Mch. Sch. 2017 pg. J1, item no.2