Quick Hits

EPISODE 7 — Uses Permitted for Cable Joints & Terminations (315.32(B))

Slide 1 — Hook "Today: where Type MV cable JOINTS and TERMINATIONS specifically are permitted — a different (and more condition-specific) list than the cable itself."

Slide 2 — The permitted conditions Up to 35,000V, joints/terminations are permitted: exposed to direct sunlight (if identified for that use); direct buried; intermittently or continuously submerged in water up to 23 ft deep (if identified for that use); with an identified environmental operating temperature range; in underground chambers, tunnels, conduits, manholes, or vaults (if identified for those uses); in corrosive conditions (if suitable for that exposure); and in cable trays (if identified, per the same cable-tray citations as the cable itself).

Slide 3 — Good vocabulary to know

• A cable JOINT is often informally called a "splice" — but "splice" is actually a broader term covering other things too, so "joint" is the more precise term here.

• A cable TERMINATION includes connections directly to equipment/insulators, AND separable insulated connectors — pluggable terminations with a matching interface that plugs into equipment like switchgear or transformers (these can even be ganged together with junction brackets to form a distribution junction).

• Reminder: the "uses permitted" list in 315.32 is NOT all-inclusive — other uses can exist too.

Slide 4 — Quiz + CTA Q: "Type MV cable joints/terminations intended for submerged use are permitted at a maximum depth of:" A) 10 ft B) 15 ft C) 23 ft D) 30 ft

✅ Answer: C — 315.32(B)(3): up to 23 ft (7 m) deep, if identified for that use.

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