5.0 Brief Scope of Work & other specific detail
The items covered in this Bid Invitation are as below;
Sl.No. Material Code Material Description Quantity
Item-10 M8225508107N HIGH MAST LIGHTING SYSTEM 20 nos
TECHNICAL SPECIFICATIONS: HIGH MAST LIGHTING SYSTEM
Supply ,erection , commissioning and testing of 20 No Lighting mast of 30 Mtr height with 20No 200Watts LED flood light fittings at
CHP area for Kudgi STPP along with Feeder pillar with timer arrangement.
The civil work for the casting of foundations for High mast shall be in the scope of the NTPC. Required foundation bolts shall be
supplied at site by agency within the 30days from the date of issuance of LOA/PO.
Required tools and tackles for the installation and commissioning work shall be arranged by agency. Necessary safety appliances,
T&P has to be provided by the agency. The work shall be carried out as per NTPC specification.The following are to be submitted to
NTPC for approval.
# Technical data of mast
# Scheme diagram
# Technical data of light fittings.
# Technical literature / Catalog.
# Civil foundation data / details.
# Test Certificates.
# Guarantee Certificates.
# Earthing & Lightning Protection details & drawing
# General arrangement of the high mast indicating dimensions and foundation details.
# Wiring diagram of light fittings.
# Bill of materials/part list.
# Design calculations.
# Data sheet.
# Installation and maintenance manual.
The contractor should strictly follow all statutory rules and regulations like workmen compensation act, minimum wages act etc.
TECHNICAL SPECIFICATION:
Sl no Description Specifications
1 Height of Mast 30 mtrs
2 No of sections 3
3 High Mast Design 1.IS:875 Part-3 Code & Practice for design loads for structures.
2. BS:EN10025 or DIN:17100-Grade of MS plates
3. BS 5135/AWS -Welding
4 Min Thickness: Top section 3mm
5 Min Thickness: Middle section 4mm
6 Min Thickness: Bottom section 5mm
7 No of longitudinal Weld/sec 1
8 No.of circumferential weld Nil
9 Length of Individual section excluding overlap Top 9290mm,Middle:10980, Bottom: 10980mm
10 Cross section of Mast 20 sided regular polygon
11 Base Dia. And top diameter(A/F) Top dia :Min 150mm, Bottom dia : Min 540mm
12 Types of joint Slip stress Method
13 Length of Overlap Top:500 Middle : 750mm
14 Metal protection Hot dip galvanizing internally & externally
15 Method of Hot diping Single dipping
16 Thcikness of galvanization As per BSEN ISO 1461
17 Wind Speed 33 m/s as per IS:875 part-3
18 Lighting Protection Finial 1.2m Galvanized, single spike
19 Galvanizing standard BSISO 1461
20 Provision for cable termination Terminal Box at base compartment
21 Specification of Mast & foundation TR. No.72000 of ILE, UK
22 Door Opening Vandal resistant,weather proof,provided with double internal lock with specialm paddle key