An electrical substation at dusk with transformers, insulators and steel structures silhouetted against a pink sky, snow on the ground

Code, process & contracts · Drawings E-401 to E-412

Commercial electrical guides for Calgary

Permits and drawings, ENMAX connections and CT metering, 208 versus 600 volts, engineers versus contractors, hiring and bid comparison, tenant improvements, arc flash, life safety, condo EV charging and getting paid under Alberta’s prompt payment law.

E-401 Commercial electrical permits in Calgary Base-building and tenant permits, drawings at 600 A and above, plans review, annual permits, inspections and occupancy.
E-402 ENMAX commercial service connections How a Calgary business gets a new or bigger service: the application, capacity, ENMAX’s investment, CT metering and energization.
E-403 120/208 V vs 347/600 V The two common Canadian commercial voltages: where each is used, why buildings choose 600 V, and what it means for equipment.
E-404 Engineer vs contractor When a commercial electrical job needs an engineer, what the contractor designs, and design-build versus design-bid-build.
E-405 Hiring a commercial electrical contractor Master electrician permits, prequalification, insurance and WCB, scopes, bid comparison and contract terms for commercial work.
E-406 CT metering explained Why larger services are metered through current transformers, what the owner supplies, and ENMAX’s requirements over 200 A.
E-407 The tenant improvement process From lease to occupancy: landlord work letters, drawings, development and building permits, electrical permits and inspections.
E-408 Arc flash requirements in Alberta What Alberta’s OHS Code and CSA Z462 say about energized work, and what an owner’s electrical safety program covers.
E-409 Fire alarm & emergency lighting rules Owner obligations under the Alberta fire and building codes: verification, annual inspection, testing and records.
E-410 Comparing electrical bids Reading commercial electrical bids line by line: scope gaps, allowances, exclusions, alternates, schedule and payment terms.
E-411 Condo board EV charging How a condo board plans parkade charging: capacity study, bylaws and approvals, cost sharing, billing and load management.
E-412 Prompt payment & holdbacks in Alberta Alberta’s Prompt Payment and Construction Lien Act for electrical contracts: payment timelines, holdbacks, disputes and liens.