What type of blasting cable is considered proper?

The proper type of blasting cable is a rubber coated, two conductor cable because it is specifically designed to safely initiate detonations in explosive applications. This type of cable offers several critical advantages: the rubber coating provides insulation against moisture and physical damage, thus maintaining reliability in various environmental conditions. The two conductor design allows for safer transmission of electrical signals needed to detonate explosives effectively, reducing the risk of accidental detonation.

Using a single conductor cable does not provide the necessary safeguards for a controlled detonation. Fiber optic cables, while useful for high-speed data transmission, are not suitable for blasting applications as they do not conduct electricity needed to initiate explosives. A plastic insulated cable might not offer the same level of safety and durability in the dynamic environments where blasting occurs, making rubber coated cables the preferred choice for ensuring both effectiveness and safety.