55.3-D.    Additional Insulation

Insulators used in territories where fog or lighting conditions prevail should be given more liberal factors of safety than those indicated in Table 12.

Insulators used at crossings or conflicts shall conform to Rules 104 and 114.

55.3-D.    Additional Insulation

Insulators used in territories where fog or lightning conditions prevail should be given more liberal factors of safety than those indicated in Table 12

In partial underground distribution, the primary transformer bushings shall have ratings of not less than 95 kV BIL and a dry flashover of not less than 60 kV; line conductor insulators, either post clamp or dead-end type, shall have a dry flashover rating of not less than 80 kV.

Insulators used at crossings or conflicts shall conform to Rules 104 and 114."

55.3-D.    Additional Insulation

Insulators used in territories where fog or lightning conditions prevail should be given more liberal factors of safety than those indicated in Table 12.

In partial underground distribution, the primary transformer bushings shall have ratings of not less than 95 kV BIL and a dry flashover of not less than 60 kV; line conductor insulators, either post clamp or dead-end type, shall have a dry flashover rating of not less than 80 kV.

Insulators used at crossings or conflicts shall conform to Rules 104 and 114.