2022-133-E-AMS-Warren Hay Mechanical Contractors-Emergency Services Warehouse Dehumidification

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ORANGE COUNTY 260500-4 Emergency Management Warehouse Building Dehumidification Basic Electrical Requirements ACCESSIBILITY 1 2 Contractor shall be responsible for the sufficiency of the size of shafts and chases and the adequate clearance in 3 double partitions and hung ceilings for the proper installation of his work. He shall cooperate with all other trades 4 whose work is in the same place and shall advise the General Contractor of his requirements. Such spaces and 5 clearances shall be kept to the minimum size required for such installations. 6 7 Contractor shall locate all equipment that must be serviced, operated, or maintained in fully accessible positions and 8 shall coordinate with other trades as necessary to meet the workspace requirements of the National Electrical Code. 9 Equipment where such space is required includes switchboards, motor control centers, panelboards, fire alarm 10 control panels, telephone and data terminal panels and cabinets, and similar items. 11 12 Minor deviations from Drawings may be made to allow improved accessibility. Submit requests for all changes to the 13 A-E for approval. Relocation of equipment, should such be required to meet NEC workspace requirements, shall be 14 made by the Contractor at no additional cost. 15 16 17 CONCEALED RACEWAY 18 19 In general, all raceway or cable wiring methods in finished spaces shall be run concealed in walls, partitions, 20 structural concrete panels, or above ceilings. 21 22 Exterior Raceway: Raceway may not be routed on exterior surfaces of the building or across a building roof 23 (either above, below, or within roof insulation) unless specifically indicated on the Drawings. 24 25 Raceway Below Concrete Floor Slabs: Raceway may not be routed below concrete floor slabs unless such 26 is specifically shown on the Drawings. 27 28 Concealment of raceway and covering of same shall not be done until authorized by the Authority Having Jurisdiction 29 (AHJ). This applies to all interior work and exterior work. 30 31 32 SLEEVES AND PLATES 33 34 Contractor shall provide and locate all sleeves and inserts required, or shall be responsible for the cost of cutting and 35 patching required where sleeves and/or inserts were not installed, or where incorrectly located. The Contractor shall 36 be responsible for all drilling required for the installation of his hangers. 37 38 Sleeves shall be provided for all raceway passing through concrete, masonry, or tile wall, floor, or overhead deck 39 construction. Sleeves shall be constructed of Schedule 40 black steel pipe unless otherwise indicated on Drawings. 40 Sleeves through concrete beams shall be constructed as indicated on Drawings. 41 42 Fasten sleeves securely in walls so that they will not become displaced when other construction is built around them. 43 Take precautions to prevent concrete, plaster, or other materials being forced into the space between raceway and 44 sleeve during construction. 45 46 Escutcheon plates shall be provided for all exposed (where permitted) raceway passing through walls and ceilings. 47 Plates shall be nickel plated, of the split ring type, of size to match the raceway. Where plates are provided for pipes 48 passing through sleeves that extend above the floor surface, provide deep recessed plates to conceal the pipe 49 sleeves. 50 51 52 SUPPORTS, ATTACHMENTS 53 54 Contractor shall furnish and install all necessary supports required for all electrical equipment, lighting fixtures, 55 raceway, outlet boxes, panelboards, generators, and for all other equipment furnished under this contract, and shall 56 submit drawings to the A-E for approval before purchase, fabrication, or construction of same. 57 58 59 60 DocuSign Envelope ID: 7668B866-6C26-485C-9A45-DAAB5D4BD951