City of Ottawa Street Lighting. Streetlight Brackets and Adapters

Transcription

1 TITLE: Engineering Specification RECOMMENDED: S. Edey, NO: 1 REV: APPROVED: D. O Keefe LBS0001 OF REV. DATE: City of Ottawa Street Lighting Streetlight Brackets and Adapters For City of Ottawa Use Only

2 REVISION SHEET REVISION DESCRIPTION DATE INITIAL 1 Add 4.7m bracket csm/jb Renamed LPS0011 to LBS0011, LBS0001, and LBS0002 Text and Drawings 2 Supersedes LBS0004 General Conditions referenced in separate specification Revised scope 3 Associated Standard Drawings identified (10.0) csm jb jb 4 51mm IPS tenon (4.0) jb 5 Approval and Recommended authorization changed se do For City of Ottawa Use Only LBS0001 Rev.5 Page 2 of 6

3 TABLE OF CONTENTS 1.0 GENERAL SCOPE REFERENCE STANDARDS APPROVAL OF SOURCE MECHANICAL REQUIREMENTS INFORMATION SUPPLIED TO THE BIDDERS INSTRUCTIONS TO BIDDERS GENERAL INFORMATION TO BE PROVIDED IN QUOTATIONS SAMPLES INSPECTION SHIPMENT WARRANTY DRAWINGS... 6 For City of Ottawa Use Only LBS0001 Rev.5 Page 3 of 6

4 1.0 General 1.1 Scope This specification covers the safety strength requirements, mounting/grounding arrangements and size classification for tapered elliptical aluminium brackets for supporting "cobra head" luminaries in addition to specialty brackets. This specification section shall be read in conjunction with engineering specification LGC Reference Standards Brackets shall comply with all applicable requirements in the latest issues of the following standards: ANSI Standard C ASTM Standard B221 ASTM Standard B241 CSA Standard S157 CSA Standard W59.2 Metal Brackets for Wood Poles Used in Roadway Lighting Aluminium Alloy Extruded Bars, Rods, Wire, Shapes and Tubes Aluminium Tubing - Aluminium Alloy Seamless Pipe and Seamless Extruded Tube Strength Design in Aluminium Welded Aluminium Construction The supplier shall be certified in accordance with the CSA Standard W47.2, certification of companies for fusion welding of Aluminium. The detail drawings attached to this specification complement and form part of the requirements of this specification. 3.0 Approval of Source Only manufacturers approved by the City of Ottawa or its agent shall supply brackets. Only brackets evaluated and approved before submission of a quotation will be accepted. Each bracket supplied shall be of the same construction currently approved by the City of Ottawa or its agent and once approved, the supplier shall not supply brackets with substantive changes in design without prior approval. 4.0 Mechanical Requirements The bracket arm shall be fabricated from aluminium alloy No T4 tubing (heat treated after fabrication to -T6) or equivalent. The bracket shall not be torn apart or otherwise fail in such a manner as to shed an applied load of 115 kg vertical and 25 kg horizontal applied separately for ten minutes within 150mm of the luminaire end of the bracket. The bracket while supporting a luminaire under Class C loading, shall withstand without permanent deformation, a wind load of 3.6 kg (approx. 88km/h and an ice load of 1.27 cm or alternatively, a wind load of 18.0 kg (approx. 130 km/h) without ice. The bracket shall be fabricated with a 51mm IPS tenon to permit safe mounting and support of a luminaire 0.21 m 2 projected area maximum and 25 kg maximum. All sharp edges and holes shall be chamfered to remove burrs. For City of Ottawa Use Only LBS0001 Rev.5 Page 4 of 6

5 Bracket arm shall be rotary polished overall with No. 80 grit or otherwise finished to a smooth and uniform appearance. Any finish other than rotary polished shall be stated at the time of quotation. Each bracket shall have identification stamped on the pole plate showing the manufacture's name or trademark and the date of manufacture. 5.0 Information Supplied To The Bidders The following information will be supplied to the bidder: a) Quantity b) Length c) Pole Mounting d) Mounting Hardware (if required) e) Grounding Provisions (if required) f) Protection for Shipment (if required) 6.0 Instructions To Bidders 6.1 General Suppliers shall submit with their quotations the information requested herein. Suppliers who fail to provide the information requested might have their quotations rejected as incomplete. 6.2 Information to be provided in Quotations Each bidder shall submit with his quotation two copies of the Outline Drawing. 6.3 Samples If requested, the supplier shall provide a sample identical in every way to the units being tendered. Samples will be returned to the supplier after evaluation. 7.0 Inspection The purchaser reserves the right to act as its own inspection agency or appoint an inspection agency to observe all steps of manufacturing testing and verification of the requirements of this specification. 8.0 Shipment When requested, each bracket shall be individually wrapped with paper or jute to provide reasonable shipping protection against permanent marking of the polished surfaces. The supplier shall obtain approval from the purchaser prior to delivery. For City of Ottawa Use Only LBS0001 Rev.5 Page 5 of 6

6 9.0 Warranty The manufacturer shall warrant that the brackets furnished by them conform to all the requirements and conditions of this specification. The manufacturer shall repair or replace, at no expense to the purchaser, defects due to fault workmanship, material or design for a period of five years after installation of the brackets, but in no case for more than six years after receipt of the unit by the purchaser. All shipping charges shall be the responsibility of the supplier Drawings LBD0001, LBD0002, LBD0003, LBD0004, LBD0005, LBD0006, LBD0007, LBD0008. For City of Ottawa Use Only LBS0001 Rev.5 Page 6 of 6