What is the primary focus of the CSA Z662 Pipeline Systems Code?

The primary focus of the CSA Z662 Pipeline Systems Code is indeed on the requirements for the design, construction, operation, and maintenance of pipeline systems that transport petroleum and natural gas liquids. This code provides guidelines that ensure the safe and efficient movement of these resources, addressing aspects such as materials, construction practices, and operational integrity.

Appliance and piping installations downstream of the natural gas meter fall within the purview of the considerations outlined in this code. Proper installation and maintenance of these components are essential for safety, as they directly interact with the transportation system that the code governs, hence ensuring the safe delivery of natural gas to end-users.

The other options pertain to different areas of safety and installation that are not the primary focus of CSA Z662. For example, electrical systems and gas detection systems have their own specific standards and codes that address their installations and safety considerations. General safety practices for construction sites are also covered under different regulatory requirements, which are separate from the specific guidelines provided in the CSA Z662. This distinction highlights the specialized nature of the CSA Z662 code and its importance in the broader context of safety and operational efficacy in pipeline systems.