Final answer:
The Main Bonding Jumper and System Bonding Jumpers are integral parts of an electrical system essential for safety and effectiveness, and Section 250.28 of the NEC likely governs their attachment.
Step-by-step explanation:
The term Main Bonding Jumper and System Bonding Jumper relate to the field of electrical engineering, more specifically to electrical safety and grounding practices. Both are essential components in an electrical system designed to provide a clear path to bring conductors together with the grounding and bonding connections. The attachment refers to how these jumpers are securely connected to the grounding system, which is critical for ensuring the safety and effectiveness of the electrical system. Section 250.28 of the National Electrical Code (NEC) likely specifies requirements for attachment, which must be in accordance with local building regulations and safety standards.