Conditions of Service, Standards and Methods

Conditions of Electricity Service

Effective April 1, 2009

The Conditions of Electricity Service apply to all Hydro-Québec customers. They cover electricity service contracts, billing and payment, supply modes and connection to the system, as well as the rights and obligations of customers and the Distributor.

Distribution Tariff

Effective April 1, 2009

Blue Book

Low-Voltage Electrical Service
Standard E.21-10 (9th edition)

This standard sets out the conditions for low-voltage electricity service. More specifically, it deals with permanent and temporary connections to the overhead or underground distribution system and metering of low-voltage supply. It is designed to provide Hydro-Québec employees, master electricians, consulting engineers and manufacturers with information on implementing or modifying electrical installations.

Red Book

Medium-Voltage Electrical Service
Standard E.21-12 (2nd edition)

This standard sets out the conditions for medium-voltage electricity service. It applies to any application for service or any modification of an electrical installation that might either increase a customer's contract power or connected load or affect the power quality of the Hydro-Québec grid.

Electricity Metering for Medium-and High-Voltage Installations

Standard F. 22-01 (3rd edition)

This standard defines the requirements and conditions governing the metering of medium- and high-voltage applications. It is meant for Hydro-Québec personnel, licensed electricians, consulting engineers and equipment manufacturers. It also aims to facilitate relations between Hydro-Québec and its customers when medium- or high-voltage electrical installations are installed or modified.

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