Final answer:
The maximum force required to operate a manual pull box is determined by applicable codes and standards, typically designed to ensure safe and efficient operation. Consult relevant codes and standards to determine the specific maximum force requirement.
Step-by-step explanation:
The maximum force required to operate a manual pull box is determined by the applicable codes and standards. In order to comply with these codes, the maximum force should not exceed a certain limit. The specific limit can vary depending on the regulations in place, but it is typically designed to ensure that the operation of the pull box can be easily performed by a person without exerting excessive force.
For example, the National Electrical Code (NEC) in the United States specifies that the maximum force required to operate a manual pull box should be no more than 50 pounds (approximately 222.4 newtons). This limit is intended to minimize the risk of injury and ensure that the pull box can be operated safely and efficiently.
It is important to consult the relevant codes and standards applicable to your specific location to determine the maximum force requirements for a manual pull box in your area.