PSC 114.232(1)(d)(d) Footnote 25 [NESC, Table 232-1, p. 102: metric; p. 106: feet] (Addition) Add the reference to Footnote 25 in the NESC-2017 Table 232-1 (both the metric and feet sections) on to the sailboating category titles of rows 6 and 7. It applies to all clearances in those rows.

PSC 114.232(1)(e)(e) Footnote 27 [Follows NESC, Table 232-1 Footnote 26, p. 102: metric; p. 106: feet] (Addition) Following Footnote 26 for Table 232-1 (for both the metric and feet sections), add Footnote 27 which reads as follows:

27A diagonal clearance equal to the required vertical clearance shall be maintained to uneven or sloping terrain within a horizontal distance of 3/4 (75%) of the required vertical clearance. All distances shall be measured from the conductors in their wind-displaced position as defined in NESC Rule 234A2.

PSC 114.232(1)(f)(f) Footnote 27 [Follows NESC, Table 232-1 Footnote 26, p. 102: metric; p. 106: feet] (Addition) Add the reference to Footnote 27 in the Table 232-1 (both the metric and feet sections) to the conductor category titles of columns 3, 4 and 5. It applies to all clearances in those columns.

8Where the US Army Corps of Engineers, or the state, or surrogate thereof has issued a crossing permit, the greater clearances of that permit or this code shall govern.

3For controlled impoundments, the surface area and corresponding clearances shall be based upon the design high water mark. For other waters, the surface area and clearances shall be based on the ordinary high water mark. The clearance over rivers, streams, and canals shall be based upon the largest surface area of any 1.6-km-long (1 mi) segment which includes the crossing. The clearance over a canal, river or stream normally providing access for sailboats to a larger body of water shall be the same as that required for the larger body of water.

PSC 114.232 HistoryHistory: CR 07-021: cr. Register January 2008 No. 625, eff. 2-1-08; CR 13-039: r. and recr. Register June 2014 No. 702, eff. 7-1-14; cr. PSC 114.232 (title) under s. 13.92 (4) (b) 2., Stats., number (1) to (3) under s. 13.92 (b) (b) 1., Stats., Register March 2015 No. 711; CR 18-007: am. (1) to (3) Register February 2020 No. 770, eff. 3-1-20.

(a) Clearances. Unguarded or accessible wires, conductors, cables, or rigid live parts may be located adjacent to buildings, signs, billboards, chimneys, radio and television antenna, tanks, flagpoles and flags, banners and other installations and any projections therefrom. The vertical and horizontal clearances of such rigid and nonrigid parts shall be not less than the values in Table 234-1 when at rest under the conditions specified in Rule 234A1.These facilities may be installed beside, over or under buildings, building projections and other installation, as illustrated in Figs. 234-1(a) and 234-1(b) and 234-1(c). Buildings, signs, billboards, chimneys, radio and television antennas, tanks, flagpoles and flags, banners and other installations and any projections therefrom shall not be located near existing wires, conductors, cables or rigid live parts if doing so results in clearances less than the values given in Table 234-1.

c. Transmission lines over dwelling units.

No utility may construct conductors of supply lines designed to operate at voltages in excess of 35 kV over any portion of a dwelling unit. This provision also applies to line conductors in their wind-displaced position as defined in Rule 234A2.

PSC 114.234 NoteNote 2: See s. SPS 316.225(6) Clearance Over Buildings and Other Structures, which refers to ch. PSC 114 regarding clearance of conductors over 600 volts and the prohibition of dwellings under or near overhead lines.

PSC 114.234 NoteException 2(a): 2.45 m (8 feet). This clearance may be reduced to 0.90 m (3 ft) for supply conductors limited to 300 volts to ground and communication conductors and cables if the roof has a slope of not less than 1 (vertical) to 3 (horizontal).

6. Clearance of Lines Near Stored Materials

Lines, under wind-displaced conditions stated in Rule 234A2, shall not be run over designated material storage areas where material is regularly stored and handled by cranes, dump trucks, elevators or other types of high machinery unless the clearance of such lines is adequate to permit full use of the equipment. Material which requires the use of such high machinery shall not be stored near or under existing lines.

PSC 114.234(5)(5) Clearance of supply lines near fuel storage tanks. [Follows NESC 234C5, p. 129] (Addition) Following NESC 234C5 and the PSC 114 addition of paragraph 6, add the following paragraph 7 and exceptions 1 and 2 to read:

7. Clearance of Supply Lines Near Fuel Storage Tanks

Supply lines shall not be run over above-ground flammable liquids and liquefied petroleum gas (LPG) storage tanks. A horizontal clearance of not less than 2.45 m (8 ft) with cables at rest, and not less than 1.80 m (6 ft) with cables displaced by wind according to Rule 234A2, shall be maintained between above-ground flammable liquids and liquefied petroleum gas storage tanks and supply cables of all voltages meeting Rule 230C. A horizontal clearance of not less than 4.6 m (15 ft) with conductors at rest, and not less than 3.0 m (10 ft) with conductors displaced by wind according to Rule 234A2, shall be maintained between such fuel storage tanks and all other supply conductors.