Elevator Mechanic Practice Exam

Where should you connect your bonding straps to properly bond an isolation platform?

1. From the platform to the car sling

2. From the platform to the control panel

3. From the platform to the door frame

4. From the platform to the motor

The correct answer is: From the platform to the car sling

Connecting bonding straps properly is crucial for ensuring safety and compliance with electrical standards in elevator systems. The correct way to bond an isolation platform is by connecting the bonding straps from the platform to the car sling. This connection helps to maintain a continuous conductive path throughout the elevator system, which is essential for grounding and protecting users from electrical shock. When the bonding is made between the platform and the car sling, it allows for effective dissipation of electrical faults and maintains a common ground reference, which is vital during operation. This approach ensures that any fault current can safely flow back to the ground without posing a risk to individuals using the elevator. Other choices might suggest connecting to points like the control panel or motor, which may not provide the same level of effective grounding or could introduce additional resistance or points of failure in the bonding circuit. The emphasis on bonding within the layout of the elevator system highlights the importance of establishing a reliable and safe path for electrical currents.