True or False: Primary cables can be buried in the same trench with secondary cables.

The statement is false because primary cables and secondary cables are typically not allowed to be buried in the same trench due to safety and regulatory standards. Primary cables, which carry high-voltage electricity from substations to transformers, operate at higher voltages and can pose greater risks if they come into contact with secondary cables that carry lower voltages to service lines. This separation is essential to prevent electrical faults or failures that could occur if the insulation of either type of cable is compromised.

Furthermore, regulations and safety standards set by electrical codes often dictate methods of installation and separation distances to ensure the safety of both the electrical system and personnel. While there may be specific scenarios that allow for some flexibility, they usually include precautions that are not typical in standard practice. Hence, the importance of keeping primary and secondary cables in separate trenches is a common requirement in electrical installations.