REPAIRS / RENEWALS / PERIODICAL MAINT TO HT / UG SYSTEM AND ALLIED WORKS AND MAINTENANCE OF AIRFIELD LIGHTING SYSTEM AT AFA HYDERABAD

M&L for cutting the existing hardstanding/PCC/WBM road/rocky surfaces at a depth of not less than 75 cm & 30 cm in width for passing of LT cables through GI pipes, returning filling in, complete incl finishing the surfaces by providing cement concrete type B1 (1:2:4) with 20 mm graded aggregate upto 20 cm, finishing to a uniform smooth surface complete all as specified and as directed.

M&L for providing and carrying out Road/PCC/Runway boring by Horizontal Directional Drilling (HDD), minimum bore dia 100 mm &/or as per site requirement, for drawing/pulling of specified pipe/cable, complete including entry & exit pits, pilot drilling, tracking, reaming, bentonite/polymer slurry, pulling arrangement, alignment/depth control, protection of existing underground services, backfilling and reinstatement, complete all as specified and as directed.

Excavation in trenches n.exc 1.5m wide and n.exc 1.5m in depth for taking out / laying of pipe / cable and getting out in any kind of soil complete all as specified and as directed.

All as per item Sl No - 3 here in before but exc 1.5m & n.exc 3.0 m in depth complete all as specified and as directed. NOTE for Item Nos 1 to 4 : 1) If any damage to any Cable of Air Force/BSNL/MES etc. or to any Pipe lines develops/occurs during execution of the works then the same shall be made good by the Contr to the entire satisfaction of the concerned Dept/Section & the costs of the same is deemed to be included in the unit quoted rates. 2) Quoted rate is also deemed to be inclusive of clearing/removing/cutting of vegetation/tree branches/small to medium plantings/bushes etc. so as to facilitate successful completion of the work. No extra/addl payment shall be allowed to the Contr in this regard. 3) The contractor/firm is required to visit the site prior to quoting of the subject items/ work so as to ascertain the actual ground requirements. Any further query at a later date shall not be entertained & responsibility of the same shall rest on the contractor/ firm.

Returning, filling in including spreading, levelling, watering and well ramming in layers n.exc 25cm thick, complete all as specified and as directed.

Removing of excavated material n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point. complete all as specified and as directed.

M&L for providing sand cushioning for protection of UG cable in trenches with dry (coarse) sand approved quality including filling, spreading and punning down to desired thickness complete. complete all as specified and as directed.

Supply and laying un-reinforced precast concrete cable cover, class HVP, Type 1, flat, size 300 x 180 x 40 mm in trenches for protection of UG Cable with width equal to length of PCC cover, laid dry & flat complete all as specified and as directed.

M&L for Prestressed Concrete poles 11.0 meter long 152mm x 152mm at top & 152mm x 260mm at bottom, Class 9. complete all as specified and as directed. NOTE : 1) Necessary earthwork, PCC etc. shall be measured & paid separately under relevant items of work.

M&L for steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts & screws as specified type 410 SP-55, 11.0 meter long, inclusive of one primer coat of red oxide zinc chrome primer and two coats of aluminium paint incl preparation of surfaces incl taking down old unsv one & making good the disturbed surfaces (if any) complete all as specified and as directed & to the entire satisfaction of Engr-In-Charge. The poles shall confirm to IS - 2713 & each component pipe shall be ISI Marked & confirm to IS - 1161. complete all as specified and as directed. Make : India Electric Poles/Bombay Tubes/National Tubing Company/India Tube & Co. NOTE : 1) Necessary earthwork, PCC etc. shall be measured & paid separately under relevant items of work.