1400 SEINER DR 2018-01-01 MF Import

PORT OF EVEItETT W MARINE VIEW DR IMPROVEMENTS CIP NO. 3-0-003-09 PROJECTNO. PD•YVM-20006-01 When junction boxes are installed or adjusted prior to construction of finished grade, pre-moided joinl filier for expansion joints may be plaa•� around the junction boxes. The joint filler shall be removed prior to adjustment to finished grade. Adjustments involving raising or lowering the junction boxes shall require conduit modification if the resultant r,learance between top of conduit and the junction box lid becomes less than 6 inches or the resultant clearance between top of conduit and gravel pad is less than 2 inches. Wiring shall ba replaced if sufficient slack is not maintained. The six•inch �ravel pad required in Standard Pian J-11a shall be maintained. When existing junction bo:�es do not have this gravel pad, it shall be installed as part of the adjustment to finished grde. Where cond�iit and junction boxes are placed in barrier, the prime Contractor shall coordinate the work of the Centractor constructing the bartier and the electrical Contractor so that each junction box placed in the barrier is placed in correct alignment with respect to lhe barrier, with the face of the hox Flush. The junction box shall be parallel to the top of the bartier within a t�egree tolerance. If any point on ihe face of a junction box placea in bartier is recessed more than tl6 inch from the surface of the barrier, the Contractor shall install a boz exteneion per the Engineers approval and grout around the extension or remove and replace the entire section of barrier. . Wiring Section 8-20.3(8) is supplemented with the following: At each junc6on box, all illumination wires, power supply wires, and communicafion cable shall be labeled with a PVC marking sleeve. For illumination and power supply circuits the sleeve shall bear the cir�uit number. For communication cable the sleeve shall be marked'Comm'. All splices shall be made in the presen�:e of the Engineer. Bonding, Grounding Section 8-20.3(9) is supplemented with the following: All appurtenances containing electrical conductors Qunction boxes, luminaires, light standards, cabinets, metallic conduit, non•metailic conduit, etc.) shall be made mechanically and elecirically secure to fortn a continuous system, which shall be effecGvely grounded. Where existing conduits are utilized, an equipment-grounding conductor shail be instailed. Where shown in the plans or where designated by the Engineer, the metal frame and lid of existing junction boxes shall be grounded to lhe existing equipment grounding system. The existing equipment grounding system shall be derived from the service serving the raceway system of which the existing junction box is a part. In addition to the conductors r,alled for in the contract, all conduit shall be installed with an equipment-grounding con�luc!or, sized per NEC 250-122, with the exception that the minimum size shall be 8 AWG. Page 43 uf 50