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CPCA Corner

    Brian Whittle
Post by On 04 June 2013 In CPCA Corner

Be an informed player by getting the resources you need to take on the challenge of compliance. Manufacturers of equipment for use in hazardous locations and potentially explosive environments face an increasingly dizzying array of new standards, design requirements, regulations and ultimately customer requirements. With an ever-changing list of technical and commercial criteria, demonstrating compliance is rarely an easy task – even with what appears to be the most minor of changes. However, timely planning and preparation will take away some of the complexity. Some steps to consider that will expedite the process are:

    Dave Adams
Post by On 15 January 2013 In CPCA Corner

There is a great deal of confusion surrounding the requirements for electrical equipment which is in direct contact with the process, specifically; is a Secondary Seal required? Does my device require the “Single Seal” or “Dual Seal” markings? Are there other options? etc. I’ll try to answer some of these questions. A Process Seal is a device to prevent the migration of process fluids from the designed containment into the external electrical system. Electrical equipment with an interface in direct contact with process fluids under pressure must incorporate a “process seal” to prevent migration of the flammable fluid into the wiring system. The Canadian Electrical Code (2012), Rule 18-072 and the National Electrical Code (2011), Rules 501.17 and 505.26, both contain requirements, which to paraphrase, state, “Process-connected electrical equipment that incorporates a single process seal such as; a single compression seal, diaphragm, or tube to prevent flammable or combustible fluids from entering a conduit or cable system capable of transmitting fluids, shall be provided with additional means to mitigate a single process seal failure”.

    Richard McNitt
Post by On 23 September 2012 In CPCA Corner

Certification of electrical equipment for use in hazardous locations has become a complex landscape of confusing options. The process can be frustrating, expensive and time-consuming.

If you keep certification in mind from the beginning of your design cycle through prototyping and final production, you can avoid many of the delays and pitfalls that occur from inadequate understanding of the required standards, thereby speeding your time to market.

If you are an end-user it is important that all products you will use in your application have the proper certifications for safe installation in hazardous areas.

Armed with knowledge and working with a trusted certification agency (there are many to choose from in Canada who are approved by Industry Canada), both manufacturers and end-users can reduce hassles from the certification process.

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