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Load Calculations for Services and Feeders. Are we consistent on this...

Section 8 of the Canadian Electrical Code is absolutely critical to the Code users, as the accurate load calculations in accordance with this Section...

Service Equipment Labeling [ NEC 2017 100.16(B)] Part 2

Practical Example The following is a real-life example of a church supplied from a 208Y/120 VAC, 300 KVA, 3-phase pad mount utility transformer. The published...

Service Equipment Labeling — NEC 2017 110.16(B)

Prior to the 2002 version of the National Electrical Code® (NEC®), incident energy and arc flash requirements were found in NFPA 70E, “Standard for...

Service-Entrance and Short-Circuit Currents

Service-entrance equipment can present unique challenges when it comes to proper application of electrical equipment. The service point is the point of demarcation between...

Criteria for Selection of a Rating of Service, Feeder or Circuit...

Apparently, there is some confusion on this subject. Let’s tackle it step-by-step. Consumer’s service, a feeder and a branch circuit are defined by the Canadian...

Article 230, Services

Article 230 is in some ways the genesis of the electrical system, meaning that it is very often the starting point of the electrical...

Two Buildings – Common Service, Grounding Requirements

A significant change occurred in the 2008 National Electrical Code (NEC) at Section 250.32(B) pertaining to the acceptable grounding methods at buildings or structures...

Inspections of Electrical Services

When a building or structure is supplied with electrical power, the equipment and conductors at the point of delivery to the premises are defined...

Service & Main Bonding Jumpers

Definitions Bonding (Bonded): "The permanent joining of metallic parts to form an electrically conductive path that will ensure electrical continuity and the capacity to conduct...
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