Change List for this Rule

 

Original Version

Rule 54.4-A4

 

54.4-A4)    Above swimming Pools: crossings of conductors above swimming pools shall be avoided where practicable. Unprotect-ed line conductors shall have radial clearances from the top edge of the swimming pool walls and vertical clearances above the highest water level of the pool surface not less than the clearances specified in Table 1, Case 3, Columns D, E and F.

 

Strikeout and Underline Version

Rule 54.4-A4

 

54.4-A4)    Above Over swimming Pools: (see Fig. 54-1) Crossing of Conductors above Installations of conductors. service drops and guys over swimming pools shall be avoided where practicable. Unprotect-ed line conductors shall have radial clearances from the top edge of the swimming pool walls and vertical clearances above the highest water level of the pool surface not less than the clearances specified in Table 1, Case 3, Columns D, E and F. Where line conductors. service drop conductors or guys are installed over swimming pools the following rules apply:

 

a)    Line Conductors: Where unprotected line conductors are installed over a swimming pool they shall have radial clearances from the top edge of the swimming pool walls and vertical clearances above the highest water level of the pool surface not less than the following:

 

1) 0 - 750 Volts

20 feet

2) 750 - 22,500 Volts

25 feet

3) 22.5 - 300 kV

30 feet

(See Table 1, Case 3, Columns D, E and F )

 

b)    Service Drops 0 - 750 Volts: Where service drop conductors are installed over a swimming pool:

 

1)    Phase conductors shall be suitably insulated (see Rule 20.8-G ).

 

2)    Vertical clearances above the highest water level of the pool surface and radial clearances from the top edge of the pool wall shall be:

 

a)    16 feet for public and commercially operated pools.

 

b)    12 feet for residential pools.

 

3)    No service drop may be installed less than 16 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 8 feet radially of the diving board or platform that is over the water surface of the pool.

 

4)    No service drop may be installed less than 12 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 3 feet radially of the diving board or platform that is not over the water surface of the pool.

 

c)    Ungrounded Portions of Guys:

 

1)    Shall have radial clearances from the top edge of the swimming pool wall of not less than 18 feet.

 

2)    Shall have vertical clearances above the highest water level of the pool surface of not less than 18 feet.

 

3)    Shall not be installed less than 18 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 8 feet radially of the diving board or platform that is over the water surface of the pool.

 

4)    Shall not be installed less than 12 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 6 feet radially of the diving board or platform that is not over the water surface of the pool.

 

d)    Grounded Portions of Guys:

 

1)    Shall have vertical clearances above the highest water level of the pool surface of not less than 16 feet.

 

2)    Shall not be installed less than 16 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 8 feet radially of the diving board or platform that is over the water surface of the pool.

 

3)    Shall not be installed less than 8 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 3 feet radially of the diving board or platform that is not over the water surface of the pool.

 

 

Minimum Vertical and Radial Clearances over Swimming Pools

A
Minimum
Vertical

B
Minimum
Radial

Unprotected Line Conductors (Vertical Over Highest Water Level and Radial from Top Edge of Pool Walls)

 

 

    1. 0 - 750 Volts

20 Feet

20 Feet

    2. 750 - 22,500 Volts

25 Feet

25 Feet

    3. 22.5 - 300 kV

30 Feet

30 Feet

Service Drops (Vertical Over Highest Water Level and Radial from Top Edge of Pool Walls

 

 

    4. Pools Public and Commercial

16 Feet

16 Feet

    5. Pools Residential

12 Feet

12 Feet

Service Drops (Over Diving Boards or Platforms)

 

 

    6. Portion of Board or Platform That is Over Water Surface

16 Feet

8 Feet

    7. Portion of Board or Platform That is not Over Water Surface

12 Feet

3 Feet

Guys (Ungrounded Portions)

 

 

    8. Over Highest Water Level and from Top Edge of Pool Walls

18 Feet

18 Feet

    9. Over Diving Board or Platform (The Portion that is Over the Water Surface)

18 Feet

8 Feet

    10. Over Diving Board or Platform (The Portion that is not Over the Water Surface)

12 Feet

6 Feet

Guys (Grounded Portions)

 

 

    11. Over the Highest Water Level

16 Feet

    12. Over Diving Board or Platform (The Portion that is Over the Water Surface)

16 Feet

8 Feet

    13. Over Diving Board or Platform (The Portion that is not Over the Water Surface)

8 Feet

3 Feet

Clearance Over Swimming Pools
Figure 541

 

Final Version

Rule 54.4-A4

 

54.4-A4)    Over swimming Pools: (see Fig. 54-1) Installations of conductors. service drops and guys over swimming pools shall be avoided where practicable. Where line conductors. service drop conductors or guys are installed over swimming pools the following rules apply:

 

a)    Line Conductors: Where unprotected line conductors are installed over a swimming pool they shall have radial clearances from the top edge of the swimming pool walls and vertical clearances above the highest water level of the pool surface not less than the following:

 

1) 0 - 750 Volts

20 feet

2) 750 - 22,500 Volts

25 feet

3) 22.5 - 300 kV

30 feet

(See Table 1, Case 3, Columns D, E and F )

 

b)    Service Drops 0 - 750 Volts: Where service drop conductors are installed over a swimming pool:

 

1)    Phase conductors shall be suitably insulated (see Rule 20.8-G ).

 

2)    Vertical clearances above the highest water level of the pool surface and radial clearances from the top edge of the pool wall shall be:

 

a)    16 feet for public and commercially operated pools.

 

b)    12 feet for residential pools.

 

3)    No service drop may be installed less than 16 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 8 feet radially of the diving board or platform that is over the water surface of the pool.

 

4)    No service drop may be installed less than 12 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 3 feet radially of the diving board or platform that is not over the water surface of the pool.

 

c)    Ungrounded Portions of Guys:

 

1)    Shall have radial clearances from the top edge of the swimming pool wall of not less than 18 feet.

 

2)    Shall have vertical clearances above the highest water level of the pool surface of not less than 18 feet.

 

3)    Shall not be installed less than 18 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 8 feet radially of the diving board or platform that is over the water surface of the pool.

 

4)    Shall not be installed less than 12 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 6 feet radially of the diving board or platform that is not over the water surface of the pool.

 

d)    Grounded Portions of Guys:

 

1)    Shall have vertical clearances above the highest water level of the pool surface of not less than 16 feet.

 

2)    Shall not be installed less than 16 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 8 feet radially of the diving board or platform that is over the water surface of the pool.

 

3)    Shall not be installed less than 8 feet vertically above the horizontal plane through a diving board or platform, such plane being the area within 3 feet radially of the diving board or platform that is not over the water surface of the pool.

 

 

Minimum Vertical and Radial Clearances over Swimming Pools

A
Minimum
Vertical

B
Minimum
Radial

Unprotected Line Conductors (Vertical Over Highest Water Level and Radial from Top Edge of Pool Walls)

 

 

    1. 0 - 750 Volts

20 Feet

20 Feet

    2. 750 - 22,500 Volts

25 Feet

25 Feet

    3. 22.5 - 300 kV

30 Feet

30 Feet

Service Drops (Vertical Over Highest Water Level and Radial from Top Edge of Pool Walls

 

 

    4. Pools Public and Commercial

16 Feet

16 Feet

    5. Pools Residential

12 Feet

12 Feet

Service Drops (Over Diving Boards or Platforms)

 

 

    6. Portion of Board or Platform That is Over Water Surface

16 Feet

8 Feet

    7. Portion of Board or Platform That is not Over Water Surface

12 Feet

3 Feet

Guys (Ungrounded Portions)

 

 

    8. Over Highest Water Level and from Top Edge of Pool Walls

18 Feet

18 Feet

    9. Over Diving Board or Platform (The Portion that is Over the Water Surface)

18 Feet

8 Feet

    10. Over Diving Board or Platform (The Portion that is not Over the Water Surface)

12 Feet

6 Feet

Guys (Grounded Portions)

 

 

    11. Over the Highest Water Level

16 Feet

    12. Over Diving Board or Platform (The Portion that is Over the Water Surface)

16 Feet

8 Feet

    13. Over Diving Board or Platform (The Portion that is not Over the Water Surface)

8 Feet

3 Feet

Clearance Over Swimming Pools
Figure 54-1