A picture of a cablebus that can be manufactured with either cables or insulated conductors. 30 – Explosion-Proof Enclosures for Use in Class I Hazardous Locations to read:Įxplosion-proof enclosure - an enclosure constructed so that it will:Ī) withstand the pressure developed during an internal explosion of an explosive gas atmosphere ī) prevent the transmission of an internal explosion to an explosive gas atmosphere surrounding the enclosure andĬ) not have external surface temperatures that are capable of igniting an explosive gas atmosphere surrounding the enclosure.

The definition for Explosion-proof enclosure was revised to harmonizes with the new edition of CSA Standard C22.2, No. This change also aligns with the ANSI/CAN CSA Standard C22.2, No. The definition of “cablebus” added the words “cable or both” to recognise that cablebus can be manufactured with insulated conductors and cables. The definition of “cable tray” has replaced the word “raceway” with the wording “supporting means.” At the same time, “cable tray” was removed from the definition for “raceway.” The Table 19 Task Force submitted these changes as part of a rewrite of Table 19 that will be discussed in a future IAEI News article. Sheath - a continuous covering that is applied over one or more insulated conductors and is intended primarily to provide a hermetic seal and, to a lesser extent, physical protection.Įditorial changes for the existing definition of “cable” will make the definition easier to understand without changing the intent. Two new definitions for “armour” and “sheath” have been added to align with product standards that reads:Īrmour - a metallic covering wrapped over one or more insulated conductors that is intended primarily for physical protection against severe installation conditions but is not intended to provide a hermetic seal. This revised definition clarifies the limitations of ampacity and is the first step for future proposals to get better consistency on the use of the word “ampacity”. The first definition change is the revised wording of the definition of “ampacity” that reads:Īmpacity - the maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating or, for insulated conductors, the insulation temperature rating.

Proposals for the remaining Sections 52, 60, 76, and 80 will be addressed in the next cycle. In addition to changes in the 2018 CE Code, proposals for Sections 0, 16, 20, 32, 38, 40, 44, 54, 56, 58, 62, 66, 68, 70, 74, and 78 have been completed resulting in editorial changes for the 2021 CE Code. The 2018 CE Code new definitions for the words “cable,” “conductor,” “bare conductor,” “covered conductor,” “insulated conductor,” “jacket,” and “wire” resulted in proposals submitted to confirm that the use of the words “conductor,” “cable,” “jacket,” and “wire” is consistent throughout the code. It has Code wide changes, including continued work on the replacement of the phrase “specifically approved for the purpose” throughout the code with changes in Sections 32, 38, 44, 54, 56, 62, 66, 68, and 70. The 2021 CE Code has 48 new or revised special terminology and definitions changes, 302 rule changes, 18 table changes, and 187 Appendix B note changes. A full copy of the CE Code is available at. This is the first of a series of articles detailing significant changes for the 2021 Canadian Electrical Code Part I (CE Code).

Low voltage splice box