Answer:
Electrical continuity at service equipment, service raceways, and service conductor enclosures is ensured by bonding jumpers. Option A is correct.
Step-by-step explanation:
Bonding jumpers are conductive elements that connect metallic parts together to create a low-resistance path for electric current. They help maintain electrical continuity by ensuring that all metallic components in the electrical system are bonded together.
In the context of service equipment, raceways, and conductor enclosures, bonding jumpers are essential for several reasons.
1. Safety: Bonding jumpers help prevent electrical shocks and hazards by ensuring that metallic parts are at the same electrical potential. This reduces the risk of potential differences between different components, which could lead to electric shocks.
2. Grounding: Bonding jumpers are an integral part of grounding systems. They provide a path for fault currents to flow, which helps protect the electrical system from damage caused by electrical faults.
3. Equipment Protection: Bonding jumpers help protect equipment from damage by providing a low-impedance path for fault currents. By quickly diverting fault currents, they prevent excessive current flow through equipment, reducing the risk of overheating and potential equipment failure.
To summarize, bonding jumpers are used to ensure electrical continuity at service equipment, service raceways, and service conductor enclosures. They play a crucial role in maintaining safety, grounding, and equipment protection in electrical systems.