C. Ladder: //Aluminum// //Fiberglass// with 400 mm (16 inches) rung spacing. Provide securely-mounted ladder for every manhole over 1.2 m (4 feet) deep. D. Ground Rod Sleeve: Provide a 75 mm (3 inches) PVC sleeve in manhole floors so that a driven ground rod may be installed. E. Sump: Provide 305 mm x 305 mm (12 inches x 12 inches) covered sump frame and grated cover. 2.2 A. General: Size as indicated on the drawings. Provide pullboxes with weatherproof, non-skid covers with recessed hook eyes, secured with corrosion- and tamper-resistant hardware. Cover material shall be identical to pullbox material. Covers shall have molded lettering, ELECTRIC or SIGNAL as applicable. Pullboxes shall comply with the requirements of ANSI/SCTE 77 //Tier 5// //Tier 8// //Tier 15// //Tier 22// loading. Provide pulling irons, 22 mm (0.875 inch) diameter galvanized steel bar with exposed triangular-shaped opening. //B. Polymer Concrete Pullboxes: Shall be molded of sand, aggregate, and polymer resin, and reinforced with steel, fiberglass, or both. Pullbox shall have open bottom.// //C. Fiberglass Pullboxes: Shall be sheet-molded, polyester resin enclosure joined to polymer concrete top ring or frame.// //D. Concrete Pullboxes: Shall be monolithically-poured reinforced concrete.// SPEC WRITER NOTE: Select duct type to meet project requirements. Rigid metal conduit shall not be specified for use in corrosive soils or environments. 2.3 A. Number and sizes shall be as shown on the drawings. B. Ducts (concrete-encased): 1. Plastic Duct: a. //NEMA TC6 & 8 and TC9 plastic utilities duct // // UL 651 and 651A Schedule 40 PVC conduit//. b. Duct shall be suitable for use with 90˚ C (194˚ F) rated conductors. 2. Conduit Spacers: Prefabricated plastic. C. Ducts (direct-burial): 1. Plastic duct:
C. Ladder: //Aluminum// //Fiberglass// with 400 mm (16 inches) rung spacing. Provide securely-mounted ladder for every manhole over 1.2 m (4 feet) deep. D. Ground Rod Sleeve: Provide a 75 mm (3 inches) PVC sleeve in manhole floors so that a driven ground rod may be installed. E. Sump: Provide 305 mm x 305 mm (12 inches x 12 inches) covered sump frame and grated cover. 2.2 A. General: Size as indicated on the drawings. Provide pullboxes with weatherproof, non-skid covers with recessed hook eyes, secured with corrosion- and tamper-resistant hardware. Cover material shall be identical to pullbox material. Covers shall have molded lettering, ELECTRIC or SIGNAL as applicable. Pullboxes shall comply with the requirements of ANSI/SCTE 77 //Tier 5// //Tier 8// //Tier 15// //Tier 22// loading. Provide pulling irons, 22 mm (0.875 inch) diameter galvanized steel bar with exposed triangular-shaped opening. //B. Polymer Concrete Pullboxes: Shall be molded of sand, aggregate, and polymer resin, and reinforced with steel, fiberglass, or both. Pullbox shall have open bottom.// //C. Fiberglass Pullboxes: Shall be sheet-molded, polyester resin enclosure joined to polymer concrete top ring or frame.// //D. Concrete Pullboxes: Shall be monolithically-poured reinforced concrete.// SPEC WRITER NOTE: Select duct type to meet project requirements. Rigid metal conduit shall not be specified for use in corrosive soils or environments. 2.3 A. Number and sizes shall be as shown on the drawings. B. Ducts (concrete-encased): 1. Plastic Duct: a. //NEMA TC6 & 8 and TC9 plastic utilities duct // // UL 651 and 651A Schedule 40 PVC conduit//. b. Duct shall be suitable for use with 90˚ C (194˚ F) rated conductors. 2. Conduit Spacers: Prefabricated plastic. C. Ducts (direct-burial): 1. Plastic duct: