I am trying to find out when we need to have fire separation in an electrical room.

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From The Ontario Building Code 2006:

3.6.2.1 Fire Separations around Service Rooms

(6) Electrical Equipment that is required to be located in a service room by a regulation made under the Electricity Act, 1998, shall be installed in a service room separated from the remainder of the building by a fire separation having fire-resistance rating not less than 1 h.

(7) Except as permitted by sentence (8), in a storey that is not sprinklered, a service room that contains service equipment other than that addressed by sentences (1) to (6), shall be separated from the remainder of the building by a fire separation having a fire-resistance rating not less than 1 h.

(8) If a service room referred to in sentence (7) contains a limited quantity of service equipment, and the service equipment neither constitutes a fire hazard nor is essential to the operation of fire safety systems in the building, the requirements for a fire separation shall not apply.
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Sentence 6 refers to equipment that is required to be in an electrical room by a regulation made under the Electricity Act, 1998.

Here is that act: Electricity Act, 1998

I cannot find where this is defined in the Act.

Can anyone help in determining what specific equipment is required to be in an electrical room; or where this information can be found?