Sample interview questions: How do you handle electrical installations for commercial chemical processing plants?
Sample answer:
Electrical Installations for Commercial Chemical Processing Plants
1. Compliance with Industry Standards:
- Adhere strictly to the National Electrical Code (NEC), NFPA 820 (Standard for Chemical Processing and Flammable Materials), and any applicable local codes.
- Obtain necessary permits and consult with the local authority having jurisdiction (AHJ) to ensure compliance with safety regulations.
2. Equipment Selection and Installation:
- Choose explosion-proof and intrinsically safe electrical equipment that meets the hazardous environment requirements.
- Install equipment in accordance with manufacturer’s specifications to ensure proper operation and prevent potential hazards.
- Consider the risk of arcing and static electricity, and implement appropriate measures for mitigation.
3. Wiring and Conduit:
- Use heavy-duty wiring capable of handling the high electrical loads found in chemical processing plants.
- Install wiring in explosion-proof or intrinsically safe conduits that provide protection from chemical exposure and potential ignition sources.
- Ensure proper bonding and grounding of all electrical systems to prevent electrical shock and ground-fault hazards.
4. Lighting:
- Install explosion-proof lighting fixtures in hazardous areas and areas with flammable materials.
- Provide sufficient illumination to ensure safe operation… Read full answer
Source: https://hireabo.com/job/12_1_4/Commercial%20Electrician