PORT OF LONDON AUTHORITY TECHNICAL STANDARDS FOR COMMERCIAL VESSELS ON THE TIDAL THAMES (THAMES FREIGHT STANDARD) 1st Edition ISBN Number: 978-0-900598-14-2 © Port of London Authority 2013 CONTENTS 1. FOREWORD ..................................................................................................... 1 2. DEFINITIONS .................................................................................................... 3 3. APPLICATION AND INTERPRETATION .......................................................... 8 3.1. Application ................................................................................................. 8 3.2. Areas of Operation ..................................................................................... 8 3.3. Licenses .................................................................................................... 8 3.4. Interpretation .............................................................................................. 8 3.5. The Right of Appeal ................................................................................... 8 3.6. Updating the Thames Freight Standard ..................................................... 9 3.7. Alternative Safety Standards ...................................................................... 9 3.8. Equivalent Standards ................................................................................. 9 3.9. Carriage of Additional Equipment ............................................................. 10 4. CONSTRUCTION AND STRUCTURAL STRENGTH...................................... 11 4.1. Structural Strength ................................................................................... 11 4.2. Construction Materials ............................................................................. 11 4.3. Wheelhouse Visibility ............................................................................... 12 4.4. Bulkheads ................................................................................................ 12 4.5. Weather Deck .......................................................................................... 13 4.6. Inflatable and Rigid Hull Inflatable Boats .................................................. 14 5. WEATHERTIGHT / WATERTIGHT INTEGRITY ............................................. 16 5.1. Hatchways and Hatches .......................................................................... 16 5.2. Doorways and Companionways Located Above the Weather Deck ......... 16 5.3. Skylights .................................................................................................. 17 5.4. Portlights and Windows ........................................................................... 17 5.5. Ventilators and Exhausts ......................................................................... 18 5.6. Air Pipes .................................................................................................. 18 5.7. Sea Inlets and Discharges ....................................................................... 18 5.8. Materials for Valves and Associated Piping ............................................. 19 5.9. General Equivalence ................................................................................ 19 6. WATER FREEING ARRANGEMENTS ........................................................... 20 7. MACHINERY ................................................................................................... 21 7.1. Machinery Installations ............................................................................ 21 7.2. Engine Exhaust System ........................................................................... 22 i 1st Edition 1 June 2013 7.3. Fuel Tanks, Oil Tanks, Pipes and Accessories ........................................ 22 7.4. Arrangements For Fuel, Lubricating Oil and Other Flammable Oils ......... 24 7.5. Oily-Water and Waste Oil ......................................................................... 25 7.6. Portable Equipment ................................................................................. 25 7.7. Petrol Engines ......................................................................................... 26 7.8. Stowage of Petrol .................................................................................... 27 8. ELECTRICAL ARRANGEMENTS ................................................................... 28 8.1. New Builds ............................................................................................... 28 8.2. All Existing Vessels .................................................................................. 28 8.3. Batteries .................................................................................................. 29 8.4. Earthing ................................................................................................... 31 8.5. Cables ..................................................................................................... 32 8.6. Location of Electrical Distribution / Switchboards ..................................... 33 8.7. Distribution Systems ................................................................................ 34 8.8. Switchgear Installations ........................................................................... 34 8.9. Switches and Protective Devices ............................................................. 35 8.10. Lighting Installations ................................................................................ 35 8.11. Alarm and Safety Systems For Mechanical Equipment ............................ 36 8.12. Connection to Shore or Other External Networks ..................................... 36 8.13. Power Supply to Other Vessels................................................................ 37 8.14. Generators and Motors ............................................................................ 37 8.15. Measuring and Monitoring Devices .......................................................... 37 8.16. Installation Fittings ................................................................................... 38 8.17. Electromagnetic Compatibility .................................................................. 38 8.18. Hazardous Spaces Other Than Enginerooms .......................................... 38 8.19. Protection Against Physical Contact, Intrusion of Solid Objects and the Ingress of Water ...................................................................................... 39 8.20. Maximum Permissible Voltages ............................................................... 40 8.21. Additional Requirements for Existing Vessels 24 metres and Over Load Line Length ............................................................................................. 41 9. STEERING GEAR, RUDDER AND PROPELLER SYSTEMS ......................... 42 9.1. General .................................................................................................... 42 9.2. Steering ................................................................................................... 42 9.3. Rudder System ........................................................................................ 42 9.4. Propeller System ..................................................................................... 42 10. BILGE PUMPING ............................................................................................ 43 10.1. Bilge Pumping and Drainage Systems ..................................................... 43 ii 1st Edition 1 June 2013 10.2. Powered Vessels 24 metres and Over Load Line Length ......................... 43 10.3. Powered Vessels Less Than 24 metres Load Line Length. ...................... 44 10.4. Unpowered Vessels ................................................................................. 44 11. STABILITY ...................................................................................................... 45 11.1. General .................................................................................................... 45 11.2. Dry Cargo Vessels ................................................................................... 45 11.3. Vessels Fitted With a Lifting Device ......................................................... 45 11.4. Vessels Engaged in Towing ..................................................................... 46 11.5. Tankers .................................................................................................... 46 12. FREEBOARD, FREEBOARD MARKING AND DRAUGHT MARKS AND SCALES ........................................................................................................ 47 12.1. Safety Clearance ..................................................................................... 47 12.2. Freeboard ................................................................................................ 47 12.3. Draught Marks (Vessels 24 metres and over load line length or vessels carrying cargo in excess of 1000kg) ........................................................ 47 12.4. Freeboard Marks (Vessels greater than 13.7 metres LOA, but less than 24 metres load line length, or vessels carrying cargo less than 1000kg) . 50 12.5. Inflatable Boats and Rigid Inflatable Boats ............................................... 50 12.6. Draught Scales ........................................................................................ 51 13. LIFE-SAVING APPLIANCES .........................................................................