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PAM 66 Bituminous Products Annual Mobile Tank Electrical Inspections

  • Description and Size

  • Age

  • Work Order Number(s)

  • NOTE: Next service due date to be set to 30th September of the year following

  • 1 <br>Reference 5.11.3 <br>Confirm electrical devices located within the hazardous zone (500mm radius from any vapour source: hatch. vent or overflow) comply with the requirements of clause 5.11.3?

  • 2 <br>Reference 5.11A (a.b) <br>Does the Electrical equipment of (the) machinery (Low Voltage above 50 VAC and 120 VDC and below 1.000 VAC end I.200 VOC - healing and control systems etc ) have (valid until the next inspection date)<br><br>- a current Statutory Declaration of Conformity from the Supplier. or.<br>- a Certificate of Verification (CoV) showing compliance with the General Electrical Requirements and Bitumen Specific Requirements of the Fulton Hogan Electrical standard This requires sections 26 2 and 26 5 (appendices 1 & 4) to be completed and attached to this PAM's form<br><br>Relevance - Not ambient emulsion

  • 3 <br>Reference 5.11.4 <br>Do electrical leads have current certification to AS/NZS 3760 2003 (6 monthly)?<br><br>Relevance - Not ambient emulsion

  • 4 <br>Reference 5.11.5 (a) <br>Is the electrical resistance between the tank and the tanker/tank wagon chassis. prime¬mover chassis. or trailer under-carnage. and between the tank and the connection of the tanker pipework to the delivery hose. less than 10 ohms and recorded in the CoV form

  • 5 <br>Reference 5.11.5 (b) <br>Is the electrical resistance between any conductive pads of the vehicle and ground (earth mass) less than 1 megaohm 7 Record on the CoV loran - Guidance - This essentially tests the resistance of the tyros and their contact with the ground. Test on a damp surface with the earth Mass connection close to the lyre and any conductive support legs insulated from the ground by a block of wood<br><br>- Guidance - This essentially tests the resistance of the tyros and their contact with the ground. Test on a damp surface with the earth Mass connection close to the lyre and any conductive support legs insulated from the ground by a block of wood

  • 6 <br>Reference 5.11.5 (C) <br>Guidance - Electrical insulation resistance between current carrying conductors and ground connections shall exceed 1 megohm. with the exception of element insulation resistance of MIMS (mineral insulated metal sheathed) elements These must have an individual insulation resistance of greater than 0.01 meqohms (10 kOhms) as tested with a 500 volt insulation tester<br><br>Relevance - Not ambient emulsion

  • 7 <br>Reference 5.16.3 <br>Is the electric element rating less than 12 5 kilowatts per square metre of external tube surface in contact with product?<br><br>Relevance - Not ambient emulsion

  • 8 <br>Confirm <br>Does the secondary temperature controller turn off the heating and not allow it to restart without a manual reset operation?<br><br>Relevance - Not ambient emulsion

  • 9 <br>Reference 5.16.5.2 (c) <br>Does the automatic (unattended) heating system have two independent methods to stop the heating (usually achieved with two contractors or relays in series)?<br><br>Relevance - Not ambient emulsion

  • 10 <br>Confirm <br>Does the low level switch(s) turn off the heating and not allow it to restart without a manual reset operation?<br><br>Relevance - Not ambient emulsion

  • 11 Low level float switches are to be Mobrey brand. Those switching very low currents (ie PLC inputs) shall have gold plated contacts.<br><br>Relevance - Not ambient emulsion

  • 12 Where more than one low level switch is installed each shall be labelled "Burner' or 'Elements" and the wiring to each identified with the same naming at both the switch and the switchboard ends. The mounting position on the tank is to be labelled also.<br><br>Relevance - Not ambient emulsion

  • 13 <br>Reference 5.16.5.2 (h) <br>Are all electrical devices installed under the cladding suitable for the temperatures encountered?<br><br>Relevance - Not ambient emulsion

  • 14 <br>Reference 5.16.5.2 (i) <br>Is all wiring installed under the cladding suitable for the temperatures encountered?<br><br>Relevance - Not ambient emulsion

  • 15 <br>Reference 5.16.5.2 (k) <br>Are all burners for unattended heating equipped with flame out safety interlocks (within the burner controller)? Check operation.<br><br>Relevance - Not ambient emulsion

  • 16 Burners shall be hard wired. (Some burners have connecting plugs which are not weatherproof)

  • 17 <br>Reference 5.16.6 (b) <br>Are the temperature control systems fail safe? ie lock the heating off in the event of a temperature sensor open or short circuiting. NB, cannot protect against thermocouple shod circuit so PT100 RTD sensors preferred. Update if maintenance required.<br><br>Relevance - Not ambient emulsion

  • 18 <br>Inspect and maintain <br>Remove and clean low level heating shutoff switches or sensors. Test operation externally. Generally these will be simple float switches but some capacitance or pressure sensors exist and these must have their calibration checked to ensure that the switched output from the electronic device occurs at the correct minimum safe heating level (providing at least 200mm of product cover over the heating surface).<br><br>Relevance - Not ambient emulsion

  • 19 <br>Confirm <br>Check operation of low level warning light (if installed).<br><br>Relevance - Not ambient emulsion

  • 20 <br>Inspect and maintain <br>Inspect condition of all tank heating system wiring (including any control system wiring)

  • 21 <br>Inspect and maintain <br>Remove and visually inspect overall condition of the elements (alternatively this may be able to achieved with an endoscopic camera), spacers to be correctly located, check elements are secure in tubes. Check all elements are operating (without heating an empty tank.)<br><br>Relevance - Not ambient emulsion

  • 22 <br>Inspect and maintain <br>Check all main electrical contractors and terminations. switchboard to be cleaned. drawings to be up to date.<br><br>Relevance - Not ambient emulsion

  • 23 <br>Confirm <br>If the burner tube exhaust can be closed with a flap then it shall have a system to prevent the burner operating unless the flap is open_<br><br>Relevance - Not ambient emulsion

  • 24 <br>Confirm <br>A heat/fire detector shall be installed above the burner. If excessive heat (typically >70¬90°C) is detected all heating systems are to turn off. A manual reset switch is required.<br>Test the operation of this system.<br><br>Relevance - Not ambient emulsion

  • 25 <br>Confirm<br>A heat/fire detector shall be installed approximately hail way up the rear wall if a bitumen sprayer tank, If excessive heat (typically >70-90 C) is detected all heating systems are to turn off. A manual reset switch is required. Tet the operation of this system.<br><br>Relevance - Not ambient emulsion

Sign Off and Completion

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