Quotation Are Invited For Supply Of Robot 3 Aspect Led Qty 30The Construction Of The Traffic Light Shall Comply With Sans 1459 2004 And Shall Be Of Modular Design The Aspect Housings Shall Be Fixed Together By Means Of Stainless Steel Screws To Facilitate Maintenance Each Detachable Aspect Housing Shall Be Dust Proof Water Tight And The Traffic Light Shall Be Of A Composite Design Utilising The FollowingMaterials Uv Stabilised Nylon With A 30 Glass Fill For Rigidity High Silicone Aluminium Where Mechanical Strength Is Required Grade 304 Stainless Steel For Clips Catches And Screws The Traffic Light Shall Be Weather Proof And The Led Compartment Easily Accessible For Maintenance By Means Of Two Quick Release Catches The Led Module Fixed Within The Reinforced Nylon Bezzle Shall Form A Rigid Compartment Door To Ensure The Aspect Remains Waterproof Over Extended Periods Aluminium Mounting Bosses On Both The Top And Bottom Of The Traffic Light Shall Be Required For Fixing To The Pole The Weight Of A Single Aspect Shall Not Exceed 1 7 Kg Which Includes The Led Module Visors And Mounting Hardware The Traffic Light Shall Not Corrode Crack Or Distort After Prolonged Exposure To The Harsh Outdoor Conditions Experienced In Southern Africa Led ModuleLed Modules Shall Be Of A Robust Sealed Beam Design All Internal Circuitry Shall Be Protected From Dust Moisture And Physical Damage By A Secondary Housing Manufactured From A Heat Resistant High Impact Polymer The Lense Of The Module Shall Be Of A Flat Design To Minimise The Collection Of Dust On The Outer Lense Surface The Led Module Must Have A Pluggable Electrical Connection Screw Terminals Will Not Be Permitted Led OpticsThe Signal Shall Be Of A Led Cluster Design A Honeycomb Diffuser Reflector Shall Be Fitted To Improve Light Output Efficiency And The Lense Shall Also Provide Light Diffusion Without Reducing The Light Intensity On The Beam Axis The Diffuser Lense Reflector Combination Shall Be Designed To Eliminate Sun Phantom The Light Intensity Shall Be Uniform Throughout The Surface Of The Lense And The Optics Must Display A Full 200 Mm Diameter Disc The Design Must Be Such That If A Single Led Fails No More Than 2 Of The Total Light Output Is Lost Led Signals Must Comply With Sans 1459 2004 For Led Traffic Signals Power SupplyThe Led Power Supply Shall Be Of A Switchmode Design Fused And Protected From Line Surges The Led Signal Shall Operate From A 50 Hz Ac Supply At Input Voltages Ranging From 184 Vac To 276 Vac I E 230 Vac 20 Any Fluctuation Of The Input Voltage Within The Above Range Shall Have No Effect On The Luminous Intensity Of The Signal Whatsoever When Driven At An Input Voltage Less Than 140 Vac The Power Supply Must Ensure The Signal Is Completely Off The Power Supply Must Ensure That The Switch On And Switch Off Times Of The Signal Do Not Exceed 100 Ms The Led Module Shall Have A Power Factor Of 0 9 Or Better And The Power Consumption May Not Exceed 7 Va All Led Modules Must Include Active Loading As Part Of The Power Supply The Purpose OfThis Active Load Is To Clamp Unwanted Residual Voltage On Cable Cores The Active Load May Not Consume Power Or Dissipate Heat When The Led Module Is Switched On For ThisReason A Passive Resistive Clamp Is Unacceptable Marking And Design LifeEach Led Module Shall Be Legibly And Durably Marked With The Following Information The ManufacturerS Name And Product Model The Maximum Power Consumption The Input Voltage Range A Serial Number The Date Of Manufacture The Complete Led Module Shall Be Guaranteed For A Period Of Five Years Physical And Lightning Damage Excluded VisorsA Suitable Black Pigmented Polyethylene Visor Projecting 160 Mm From The Signal Face Shall Be Supplied With Each Aspect The Visor May Not Obscure The Lense Cable Entry And WiringCable Entry Shall Be At The Bottom Of The Upper AspectS Housing By Means Of A Heavy Duty Reinforced Pvc Hose The Hose Diameter Shall Be 20 Mm And Length Shall Be As Follows 1 And 2 Aspect Traffic Lights 1250 Mm 3 And 4 Aspect Traffic Lights 610 MmWire Colour Coding Shall Be As Follows Red Signal Red Wire Amber Signal White Wire Green Signal Blue Wire Additional Signal Grey Wire Neutral Black WireMountingEach Traffic Light Shall Have A Thread At The Top And Bottom Of The Assembly To Facilitate Mounting Two 10 Mm Set Screws And Spring Washer Must Be Provided With Each Traffic Light Assembly A Stud With Nut Leaving Thread Exposed To The Outdoor Elements Is Not Acceptable Two Right Angle Brackets Including Universal Pole Mounting Straps Designed To Fit Poles From 100 Mm To 170 Mm Diameter Shall Be Available To Fix Traffic Lights To The Poles Pole Straps Must Be Tensioned With A Set Screw And Nut Crimping Or Band It Strapping Is Not Acceptable Brackets To Mount Traffic Lights Side By Side Shall Be Available As An Optional Extra ConfigurationsThe Following Traffic Light Configurations Shall Be Available 3 Aspect S1 S2 S3 And S4 4 Aspect S5 S6 And S7 5 Aspect S8 And S9 2 Aspect S10 S11 Pedestrian And S12All The Above Configurations Shall Be Available For Left Right And Straight Traffic Movements External FinishThe Signal Head Shall Be Pigmented Matt Black And Any Aluminium Parts Shall Be Powder Coated
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