What guidelines should be followed when making splices in electrical wiring?

Splices in electrical wiring are critical points in any electrical system, as they are where two or more wires are joined together. When making these connections, it is essential to use appropriate connectors and ensure that they are insulated properly. This is because the integrity of the splice affects the overall performance and safety of the electrical system.

Using proper connectors ensures that the wires are securely fastened and can handle the electrical load without overheating or failing. Furthermore, insulation is crucial to prevent short circuits and protect against electrical shock. An uninsulated splice could expose conductors, increasing the risk of accidental contact, which could lead to serious injuries or even fatalities. Therefore, adhering to these guidelines is vital for maintaining safety and compliance with electrical codes and standards.

Other options suggest practices that can compromise safety, such as using arbitrary tape or leaving splices exposed, which can result in increased risks of electrical failures or hazards. Similarly, favoring metal connections over insulated ones neglects the need for protection against shorts and electric shocks. Therefore, the guideline of using appropriate connectors and ensuring proper insulation is the best practice in making secure and safe splices in electrical wiring.