Final answer:
The statement is false. The distance required for conductor separation may vary by code, and the high-voltage wires are not insulated as they are aloft and not at risk of being touched.
Step-by-step explanation:
False, the statement regarding Conductors of Class 2 circuits needing to be separated by at least 30 mm from conductors of electric lighting circuits, operating at 300V or less, is not accurate. National and local electrical codes often specify the requirements for conductor separation, and the exact distance can vary based on the code. For instance, the National Electrical Code (NEC) in the United States may have specific provisions that differ from this claim.
The high-voltage wires seen on tall metal-frame towers are indeed held aloft by insulating connectors, and the wires are not usually wrapped in an insulating material because they are located at a height where they do not pose a risk of being touched by individuals or objects. Thus, the answer is (b) false.
Electrical safety standards such as the utilization of plastic insulation on live/hot wires are designed to prevent both shock and thermal hazards, as the insulating material is non-conductive and resistant to high temperatures, helping to minimize the risk of electric shock and overheating.