least 200 mm (8 inches) beyond the equipment. Provide conduit turnups and cable entrance space required by the equipment to be mounted. Seal voids around conduit openings in slab with water- and oil-resistant caulking or sealant. Cut off and bush conduits 75 mm (3 inches) above slab surface. Concrete work shall be as specified in Section 03 30 00, CAST-IN-PLACE CONCRETE. F. Interior Location. Mount substations on concrete slab. Unless otherwise indicated, the slab shall be at least 100 mm (4 inches) thick. The top of the concrete slab shall be approximately 100 mm (4 inches) above finished floor. Edges above floor shall have 15 mm (1/2 inch) chamfer. The slab shall be of adequate size to project at least 100 mm (8 inches) beyond the equipment. Provide conduit turnups and cable entrance space required by the equipment to be mounted. Seal voids around conduit openings in slab with water- and oil-resistant caulking or sealant. Cut off and bush conduits 75 mm (3 inches) above slab surface. Concrete work shall be as specified in Section 03 30 00, CAST-IN-PLACE CONCRETE. G. Substation Grounding: 1. Provide bare copper cable not smaller than No. 4/0 AWG, and not less than 610 mm (24 inches) below grade, interconnecting with the ground rods. 2. Surge arresters (if applicable) and neutral shall be bonded directly to the transformer enclosure, and then to the grounding electrode system with bare copper conductors, sized as shown on the drawings. Lead lengths shall be kept as short as practical with no kinks or sharp bends. //3. Bonding connections to metallic fences shall not be smaller than No. 4 AWG. Ground fence at each gate post and cornerpost, and at intervals not exceeding 3 M (10 feet). Bond each gate section to the fence post through a 3 mm by 25 mm (1/8 inch by 1 inch) flexible braided copper strap and clamps.// 3.2 A. Perform tests in accordance with the manufacturer's recommendations. In addition, include the following: 1. Medium-Voltage Section Tests: a. Refer to //Section 26 13 16, MEDIUM-VOLTAGE FUSIBLE INTERRUPTER SWITCHES// //Section 26 13 13, MEDIUM-VOLTAGE CIRCUIT BREAKER SWITCHGEAR//.
least 200 mm (8 inches) beyond the equipment. Provide conduit turnups and cable entrance space required by the equipment to be mounted. Seal voids around conduit openings in slab with water- and oil-resistant caulking or sealant. Cut off and bush conduits 75 mm (3 inches) above slab surface. Concrete work shall be as specified in Section 03 30 00, CAST-IN-PLACE CONCRETE. F. Interior Location. Mount substations on concrete slab. Unless otherwise indicated, the slab shall be at least 100 mm (4 inches) thick. The top of the concrete slab shall be approximately 100 mm (4 inches) above finished floor. Edges above floor shall have 15 mm (1/2 inch) chamfer. The slab shall be of adequate size to project at least 100 mm (8 inches) beyond the equipment. Provide conduit turnups and cable entrance space required by the equipment to be mounted. Seal voids around conduit openings in slab with water- and oil-resistant caulking or sealant. Cut off and bush conduits 75 mm (3 inches) above slab surface. Concrete work shall be as specified in Section 03 30 00, CAST-IN-PLACE CONCRETE. G. Substation Grounding: 1. Provide bare copper cable not smaller than No. 4/0 AWG, and not less than 610 mm (24 inches) below grade, interconnecting with the ground rods. 2. Surge arresters (if applicable) and neutral shall be bonded directly to the transformer enclosure, and then to the grounding electrode system with bare copper conductors, sized as shown on the drawings. Lead lengths shall be kept as short as practical with no kinks or sharp bends. //3. Bonding connections to metallic fences shall not be smaller than No. 4 AWG. Ground fence at each gate post and cornerpost, and at intervals not exceeding 3 M (10 feet). Bond each gate section to the fence post through a 3 mm by 25 mm (1/8 inch by 1 inch) flexible braided copper strap and clamps.// 3.2 A. Perform tests in accordance with the manufacturer's recommendations. In addition, include the following: 1. Medium-Voltage Section Tests: a. Refer to //Section 26 13 16, MEDIUM-VOLTAGE FUSIBLE INTERRUPTER SWITCHES// //Section 26 13 13, MEDIUM-VOLTAGE CIRCUIT BREAKER SWITCHGEAR//.