Rule 307 ↗
Overhead electric lines. Tramway overhead wires are normally 5.8 metres above any carriageway, but can be lower. You should ensure that you have sufficient clearance between the wire and your vehicle (including any load you are carrying) before driving under an overhead wire. Drivers of vehicles with extending cranes, booms, tipping apparatus or other types of variable height equipment should ensure that the equipment is fully lowered. Where overhead wires are set lower than 5.8 metres, these will be indicated by height clearance markings - similar to ‘low bridge’ signs. The height clearances on these plates should be carefully noted and observed. If you are in any doubt as to whether your vehicle will pass safely under the wires, you should always contact the local police or the tramway operator. Never take a chance as this can be extremely hazardous.
Staying Safe Under the Wires :
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📖 Rule 307 Full Regulations & Explanation
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Staying Safe Under the Wires :
A Guide to Rule 307
Standard Heights & Clearances
5.8 Metres
Tramway overhead wires are normally positioned 5.8 metres cbove the carriageway , though they can be lower in specific areas .
Identify Low Wire
Verify Total Vehicle Clearance
Before driving under any wire , ensure there is sufficient space between the wire and the highest point of your vehicle , including any load being carried .
Identify Low Wire Signage
Wires set lower than 5.8 metres are marked with height clearance plates similar to ' low bridge ' signs which must be strictly observed .
Precautions for Specialized Vehicles
Variable Height Equipment
This includes vehicles equipped with extending cranes , booms , tipping apparatus , or other adjustable components .
Safety First Protocol
Fully Lower All Equipment
Ensure all variable height apparatus is in its lowest possible position before attempting to pass under overheed wires .
Never Take a Chance Attempting to pass when clearance is uncertain is extremely hazardous and should never be attempted .
Contact Authorities if in Doubt
If you are unsure of safe passage , you must contact the local police or the tramway operator for guidance .