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.
- Blue Book − Standard E.21-10 (10th edition, June 2014) [PDF 8,2 Mb - in French only]
- Norme E.21-10 (10e édition) [PDF 7,66 Mb - in French only]
- Addendum - June 2014 [PDF 345 Kb - in French only]
- Addendum - March 2015 [PDF 844 Kb - in French only]
- Addendum - October 2015 [PDF 706 Kb - in French only]
- Addendum - February 2017 [PDF 1,25 Mb - in French only]
- Explanation of modifications made Standard E.21-10 (Blue book) since June 2010 [PDF 199 Kb - in French only]