Sheet E-302: Crane Access on a 6.5 m Shared Road over the Buried MV Crossing

What this sheet shows

E-302 is marked NTS, not to scale, and dated 26 SEP 2026. It is the interface between crane access and the buried crossing, not a lift plan and not the trench section. The plan puts branch pole BP7-02 on the pole row, labeled two 3-phase branch sets, beside a road band marked road / setup and 6.5 m shared. Road crossings is the last line of the note stack above the band, with the outrigger, lift-support, and tail lines. Outrigger centres are shown, and the same note gives pad design to the lift plan. Lift supports are to be kept clear or given a verified load transfer. The tail is labeled R3.500 m, in a bracket that reads OEM reference, slew check required. On the transformer side of the road the plan draws TX02 and TX03, and the boom leader reads boom to TX at TX03. Under that plan the crossing section runs from the pole riser, under the finished road and shoulder, to the TX entry. The depth mark on that section is starred to the conduit top, the enlarged section is E-303, and the figure printed there is a 60 in minimum.

Coordinates, and the figures that are not clearances

The geometry block takes its layout basis from E-301 coordinates. TX outer face to the branch-pole row is 12000 mm transverse, and the overhead note calls the selected row spacing 12 m when it asks for the full crane, load and rigging envelope to be checked at that spacing. Road edges are Y22370 and Y28870, and the shared width is 6500 mm, the same 6.5 m written in the road. The crane slew-axis example is Y25620, with a TX-face distance of 4500 mm. Those three coordinates can be checked against each other: Y25620 lies halfway between the road edges printed on the same lines. The road-edge to pole-row distance is 4250 mm, and that line says the 4250 mm is not an electrical clearance. The crane-reference lines then print an outrigger spread of 6200 mm, a longitudinal figure of 6825 mm, vehicle axis offsets of -7972 / +4231 mm, and a width of 2860 mm. Only the tail line names a source: 3500 mm per the reference product guide, and the actual configuration governs. The sheet's reference list names the GMK3050-3 product guide, and the R3.500 m on the plan is that tail written in metres. Stopping and support positions shall be established by the lift plan.

Three load cases this sheet does not close

The crossing notes keep the two duties on this road apart. Vehicle wheel loading and lifting-support reactions are separate cases. Lift planning shall first locate supports clear of the buried-route influence. Where overlap remains, support load transfer is verified with the actual reactions. Support-pad size and the concrete protection section are determined from the support loads and the ground conditions; neither size is given here. Three cases are named. LC-T, travel, takes its trench basis on E-303. Actual mobilized axle loads, wheel spacing, contact and turning are inputs, and travel release follows ground, backfill and vehicle-load verification. LC-O, lift supports, is lift-specific: use OEM reactions for the actual load, radius, slew and counterweight, then verify support bearing, settlement, mat action and buried-service protection. LC-C, construction, uses the stage as it stands: temporary traffic uses the actual cover and the achieved backfill condition. Around those cases the notes require controlled trench construction through the road and the shoulders, and transitions at the pole risers and the TX entries that follow cable bend and pulling limits. Shared-road travel and lifting are scheduled separately, and emergency access is retained. Cover, bedding, pipe-zone work and inspection records are defined on E-303.

The live trunk, and what stays open

The overhead block is a check the lift still has to perform. It says to verify all crane parts, the load and the rigging against sag, swing and accessories. OSHA 1926.1408 Table A is cited as a <=50 kV basis of 10 ft (3.048 m). The 20 ft assessment trigger is not a pole-to-TX siting dimension. Below-line restrictions and the applicable operating controls apply, and the full crane, load and rigging envelope is to be verified against energized-line clearance for the selected 12 m row spacing. Branch isolation does not de-energize the adjacent overhead trunk, so the energized-line check is still against that trunk. That boundary is the subject of the electrical architecture notes. The electrical design itself is unchanged: 12.47 kV radial branches and protection stay as drawn on E-104 to E-106. A 200 A cutout holder rating does not select the fuse-link current. Transformer removal is isolate the MV and all LV backfeed, then verify dead and ground, while terminal access, drainage, cable bends and emergency access are maintained. Records of the work are to identify the buried routes and the travel and lift conditions that were adopted. Published at Design Development — Public Edition P1 (sheet line 26 SEP 2026; title block 2026-09): a reference design for study and evaluation. Pad design is by the lift plan, and stopping and support positions shall be established by the lift plan. The tail bracket is OEM reference; slew check required, and the geometry line says the 3500 mm tail is per the reference product guide and that the actual configuration governs. OEM reactions and the mobilized axle inputs are not printed here. The reference line also names OSHA 1926.1402 and 1926.1411, the OEM general arrangement, E-301 and E-303.

Sheet guide — the devices on this drawing

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