Carrier Chiller Service Engineer Interview Questions and Answers

ELCB rating and time depend on the load and application.

• ELCB rating should be selected based on the maximum current that can flow through the circuit.

• The time rating should be selected based on the type of load and the sensitivity of the equipment.

• For example, a 30mA ELCB with a time rating of 0.1 seconds is suitable for residential applications.

• For industrial applications, a higher rating ELCB with a longer time ratin...read more

The human resistance of 0.5amps should be set less than 30ma for 0.1 second.

• The question is asking about setting the current limit for a chiller service engineer.

• The engineer needs to ensure that the current limit is set below 30ma for 0.1 second to avoid harm to humans.

• The human resistance of 0.5amps should be taken into consideration when setting the current limit.