Explosive atmospheres – Part 47: Equipment protection by 2-wire intrinsically safe Ethernet concept (2-WISE)

Designation Number:
C22.2 NO. 60079-47
Standard Type:
National Standard of Canada - Adoption of International Standard
Standard Development Activity:
New Standard
ICS code(s):
29.260.20
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

Note: The standards development activity for this NOI (originally published on May 10, 2022), was updated by the responsible SDO on July 19, 2022.

This part of IEC 60079, which is a technical specification, specifies requirements for the construction, marking and documenting of apparatus, systems and installations for use with the 2-Wire Intrinsically Safe Ethernet concept (2-WISE), such as the physical layer specification for 2-Wire Ethernet 10BASE-T1L as defined in IEEE 802.3cg.

2-WISE is a concept for an advanced physical layer (APL), designed to simplify the examination process for intrinsic safety parameters of components and cabling within APL segments. This is achieved by defining universal intrinsic safety parameter limits for APL ports, according to the specific hazardous area requirements and listing a concise set of rules for the segment setup.

The requirements for construction and installation of 2-WISE devices and systems are included in IEC 60079-11, IEC 60079-14, and IEC 60079-25, except as modified by this document. Parts of a 2-WISE device can be protected by any Type of Protection listed in IEC 60079-0 appropriate to the EPL for the intended hazardous area. In these circumstances, the requirements of this technical specification apply only to intrinsically safe circuits of the apparatus.

Where a requirement of this document conflicts with a requirement of IEC 60079-0, IEC 60079-11, IEC 60079-14 or IEC 60079-25, the requirements of this document take precedence.

Project need:

To align Canadian requirements with those of international standards for equipment protection by 2-wire intrinsically safe Ethernet concept (2-WISE). This proposed New Standard is being developed at the request of ICHL Technical Subcommittee. It will provide the industry with Canadian requirements for equipment protection by 2-wire intrinsically safe Ethernet concept (2-WISE). This will meet the strategic needs of the following key interests: a) ensuring that the latest innovative/technology/safety features are available for users, b) addressing needs of regulators by providing suitable requirements; and c) supporting certification bodies.

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.