Original Version
Rule 23.4
23.4    Working Space means the space, extending laterally from the 
climbing space, reserved for working below, above and between conductor 
levels.
Strikeout and Underline Version
Rule 23.4
23.4    Working Space means the space, extending laterally from the 
climbing space, reserved for working below, above and between conductor 
levels.  Voltage (or Volts) means the highest effective voltage between 
any two conductors of the circuit concerned except where, in certain rules, the 
term “voltage (or volts) to ground” is used.
When one circuit is directly 
connected to another circuit of higher voltage (as in the case of an 
autotransformer) both are considered as of the higher voltage unless the circuit 
of the lower voltage is effectively grounded. Direct connection implies 
electrical connection as distinguished from connection merely through 
electromagnetic or electrostatic induction.
Final Version
Rule 23.4
23.4    Voltage (or Volts) means the highest effective voltage between 
any two conductors of the circuit concerned except where, in certain rules, the 
term “voltage (or volts) to ground” is used.
When one circuit is directly 
connected to another circuit of higher voltage (as in the case of an 
autotransformer) both are considered as of the higher voltage unless the circuit 
of the lower voltage is effectively grounded. Direct connection implies 
electrical connection as distinguished from connection merely through 
electromagnetic or electrostatic induction.
Note: Original Version 23.4 moved to 23.6 & Final Version of 23.4 was moved from 23.2