Tender For corrigendum : repair/maint of eot/hot cranes, annual maintenance of passengers lift, earthing/lightning protection and connceted works inside tech area at af stn gwalior
Tender For supply of high mast light and misc items d d - providing and fixing of 16 meters high mast lighting tower for large area with 08 led flood light luminaires , providing and fixing of 10 meters high mast lighting tower for large area with 12 led flood light luminaires , led bulb 9w , copper chemical earthing with complete wire and materials , rubber adhesive providing and fixing of 16 meters high mast lighting tower for large area with 08 led flood light luminaires,octagonal pole construction with metal protection treatment of fabricated mast section, hot dip galvanised as per is:4759 latest, octagonal pole sheet thickness 3 mm, material of octagonal pole high tensile steel, 01 nos of longitudinal welds, type of welding is submerged arc welding process, internal distance between parallel faces at the base of pole 175, 01 no of section,internal distance between parallel faces at the top of pole 70, grades of high tensile steel ish430la as per is:5986 (grade 355), cross section of octagonal pole (no of sides) octagonal, with no door opening, width of base plate 300 mm, number of nuts for each pole 1, foundation bolt type j type en 8 grade, bolts and nuts are conforming to specication as per is:1363 - grade a, base plate material mild steel fe 410 conforming to is : 2062, necessary accessories on each pole foundation bolts,nuts, washers, instruction manuals, bolt size m24x750, thickness of base plate 16 mm, number of washer per bolt for each pole 2, number of bolts for each pole 4, foundation bolts and nuts and octagonal pole shall be galvanized as per is:4759 (latest), length of base plate 300 mm, earthing terminals on the base of the pole, for lightning and electrical protection, regional wind withstand capacity which the pole structure support is suitable to withstand (in m/s) 47, the designed life of the pole shall be 25 years, terminal box ) /bid number : gem/2026/b/7398300 * /dated: 01-04-2026 & & / bid document 1 / 15
Tender For supply of class "b" and "c" surge protection device (spd) type i & ii with visual indication and potential free contact to remote monitoring as per rdso spec no. rdso/spn/165/2012 version 3.0 or latest and iec standard 61643 for signals line 230vac application with handling lightning surges of 8/20 microseconds. one set consists of 3 nos. of spd (two nos. of b class (l-n,l-e) and one no.of c class (l-n) all enclosed in a box with kema or vde certified as per latest iec 61643-11-2011 standard class b & c surge protection device required with three modules. make- obo/phoenix/betterman/dehn or similar. [ warranty period: 30 months after the date of delivery ]
Tender For supply installation and commissioning of early streamer emission type advanced lightning protection system at different work locations of quarry at rampur batura ocp and providing and installation of 06 set advance ese lightning protection system in