What must be done before connecting new electrical circuits to existing service equipment?

Before connecting new electrical circuits to existing service equipment, it is essential to evaluate and approve the existing system. This evaluation ensures that the current service equipment can handle the additional load and that it complies with all safety standards and electrical codes.

Assessing the existing system involves checking for any signs of wear, verifying that the equipment is rated for the intended load, and ensuring that it meets current electrical codes and practices. Proper evaluation helps to avoid potential issues such as overload, overheating, and electrical failures, which could lead to hazardous conditions.

Making direct connections without prior evaluation could lead to unseen problems in the existing equipment, which may not be capable of supporting the new circuits. The safety of both the installation and future operations of the electrical system relies heavily on this critical step.