**DC Feeder Trenches**

**DC Feeder Trenches**

**Width = (i - 1) * s + i * 2* d + 6"**

**Depth = 36" + d**

Here:

**i **is the number of DC Feeder cables in the trench,

**s** is the distance between the DC Feeder cables in the trench, in inches;

**d** is the cable diameter in inches;

**6"** is the distance from the beginning of the trench to the first cable.

**AC Feeder Trenches**

**AC Feeder Trenches**

**Width = (i - 1) * s + i * 3* d + 3"**

**Depth = 24" + d**

Here:

**i **is the number of AC Feeder cables in the trench,

**s** is the distance between the AC Feeder cables in the trench, in inches;

**d** is the cable diameter in inches;

**3**" is the distance from the beginning of the trench to the first cable.

**Whip Trenches**

**Whip Trenches**

**Width = (i - 1) * s + i * g/2* d + 3"**

**Depth = 30" + 2 * d**

Here:

**i **is the number of whip cables in the trench,

**s** is the distance between the whip cables in the trench, in inches;

**g** is the number of whips in the group, equal to 8;

**d** is the cable diameter in inches;

**3**" is the distance from the beginning of the trench to the first cable.