Canadian Electrical Code, Section 46, Emergency Systems, Unit Equipment and Exit Signs provides installation and maintenance requirements for standby power for essential services when the regular power supply fails.
When approached to investigate flood-damaged electrical equipment to determine if equipment continues to meet safety requirements, UL investigates equipment on a case-by-case basis.
This article revisits some definitions and requirements covered in Section 6 of the Canadian Electrical Code, Services and Service Equipment, beginning with a review of some often mentioned terms.
The Canadian Electrical Code, Section 6 provides us with some important rules for installing service equipment, wiring methods and metering.
All UL Listed luminaires must be equipped with American standard-sized mounting hardware.
The Neon Installation Manual was welcomed by the industry but it became evident that many people wanted a more comprehensive book.
Metallic Outlet Boxes are Listed under the category Metallic Outlet Boxes (QCIT), in the UL Electrical Construction Equipment Directory.
Usually, good grounding and bonding methods and isolation of data processing equipment from sources of transient voltage interference and electrical noise are the easiest and best ways to correct transient voltages and electrical noise problems, or to prevent them from happening in the first place.
What should happen when the electrical utility or a utility customer decides to convert the ungrounded 600 volt, 3-wire supply to a 600/347 volt, 4-wire, solidly grounded electrical supply?