Section 114.232. Vertical clearances of wires, conductors, cables, and equipment above ground, roadway, rail, or water surfaces.

 

(1)   Table PSC 114.232-1. [NESC, table 232-1, pp. 94-97: metric; pp. 97-100: feet] Vertical clearance of wires, conductors and cables above ground, rails, or water surfaces (Changes and Additions) The Footnotes for NESC Table 232-1 on page 96-97 (Metric) and page 99-100 (Feet) contain the following changes and additions:

(a) Change Footnote 18 to read as follows:

18 For uncontrolled water flow areas, the surface area and clearances shall be based on the ordinary high water mark.

(b) Change Footnote 21 to read as follows:

21 Where 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.

(c) Add Footnote 26 to read as follows:

26 Water areas not suitable for sailboating include portions of meandering rivers, streams and canals where the widest width does not exceed 50 m (165 feet) within any unobstructed,1.6-km (1-mile) long segment that includes the crossing or where the width does not exceed 50 m (165 feet) within the surface area of any segment less than 1.6-km (1-mile) long on the line-crossing side of an overwater obstruction. All rivers, streams, canals and creeks as defined by the Wisconsin department of natural resources (DNR) which meet this definition are considered not suitable for sailing.

Exception: Regardless of width, the clearance over a canal, river, or stream normally used to provide access for sailboats to a larger body of water shall be the same as that required for water areas suitable for sailboating on the larger body of water. This also applies where a sailboat may be transported across such water with its mast extended.

(d) Add the reference to Footnote 26 in NESC-2012 Table 232-1 on pp. 94-97 (Metric) and pp. 97-100 (Feet) to the sailboating category titles of rows 6 and 7. It applies to all clearances in those rows.

(e) Add Footnote 27 which reads as follows:

27 A 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.

(f) Add the reference to Footnote 27 in NESC-2012 Table 232-1 on pp. 94-97 (Metric) and pp. 97-100 (Feet) to the conductor category titles of columns 3, 4 and 5. It applies to all clearances in those columns.

(2)   Table PSC 114.232-2. [NESC, Table 232-2, pp. 101-102 (metric) and pp. 102-103 (feet)] Vertical clearance of equipment cases, support arms, platforms, braces and unguarded rigid live parts above ground, roadway, or water surfaces (Change). Change Footnote 8 to read as follows:

8 Where 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.

(3)   Table PSC 114.232-3. [NESC, table 232-3, p. 104] Reference heights (Change). Change Footnote 3 to read:

3 For 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.

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 .