Site Utilities
Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
Showing changes from Rev 5
to Rev 6
in Site Utilities.
---
title: Site Utilities
…220 unchanged lines
### The standard protection for ductile iron in aggressive soil is loose polyethylene encasement installed in accordance with AWWA C105; bonded coatings and cathodic protection are used where the corrosion engineer requires them. {note}
+### Where the geotechnical or corrosion investigation indicates aggressive soils (low resistivity, high chloride or sulfate content, or stray-current exposure), ductile iron pipe and fittings shall be protected.
+
```datasheet
label: Corrosion Protection for Ductile Iron in Aggressive Soil
…7 unchanged lines
```
−### Where the geotechnical or corrosion investigation indicates aggressive soils (low resistivity, high chloride or sulfate content, or stray-current exposure), ductile iron pipe and fittings shall be protected.
−
### PVC and HDPE pipe are not subject to galvanic or electrolytic corrosion and require no such protection, but their metallic appurtenances (bolts, glands, tie rods, valves) do and shall be protected.
…160 unchanged lines
### The conduit and duct sizes, the number of ducts, and the assignment of ducts to electrical and telecom service are as indicated on the electrical drawings. {note}
+### Underground raceway for electrical and telecommunications cable shall be rigid PVC conduit conforming to NEMA TC-2 and UL 651 (Schedule 40 or Schedule 80 as indicated), PVC utilities duct conforming to NEMA TC-6 & 8, or HDPE duct, as indicated on the electrical drawings.
+
```datasheet
label: Underground Conduit / Duct Type
…8 unchanged lines
```
−### Underground raceway for electrical and telecommunications cable shall be rigid PVC conduit conforming to NEMA TC-2 and UL 651 (Schedule 40 or Schedule 80 as indicated), PVC utilities duct conforming to NEMA TC-6 & 8, or HDPE duct, as indicated on the electrical drawings.
−
### Schedule 80 PVC, or steel conduit, shall be used at locations exposed to physical damage and at the stub-up/riser where the duct turns vertical out of the ground, as required by NFPA 70 (NEC).
…4 unchanged lines
### The drawings establish whether each dry-utility run is concrete-encased or direct-buried. {note}
+### The duct-bank encasement type shall be specified for each run as shown on the drawings, distinguishing concrete-encased from direct-buried construction.
+
```datasheet
label: Duct-Bank Encasement
…6 unchanged lines
```
+### The minimum concrete cover around the outermost conduit in each concrete-encased run shall be specified, sized to satisfy the structural and thermal design of the encasement.
+
```datasheet
label: Concrete Encasement Cover Around Outermost Conduit
…386 unchanged lines
## The installation shall satisfy the utility owner's acceptance and bonding requirements where the system is to be turned over to the public utility for ownership and maintenance.