Final answer:
The question is missing crucial information regarding the specific procedures for mains 12" and larger. It appears to relate to an engineering or industrial context, perhaps involving the installation, maintenance, or safety protocols for utility mains. Additional context from the student is needed for a precise answer.
Step-by-step explanation:
The student's question, which asks about company procedures for mains that are 12" and larger, seems to be incomplete as it is missing information on what specific procedures or actions are being referenced. Typically, in an engineering, construction, or industrial context, mains might refer to large pipes or conduits for water, gas, or other utilities, and procedures could involve many aspects like installation, maintenance, or safety protocols.
- Installation - The mains should be installed by a qualified engineer, following the specific technical drawings and safety standards.
- Maintenance - Regular inspections and maintenance should be conducted to ensure the integrity and function of the mains.
- Safety - Proper safety protocols must be observed during any work on these mains to prevent accidents and ensure the safety of workers.
It's important for the student to provide the full context of the procedure in question to receive accurate guidance.