260533_Raceways_-_Metal.pdf
PDF 124 KB Posted
- Attached to
- Volusia County Branch Jail Air Handler-Fire Suppression System Removal, Replacement and Upgrade
- Solicitation number
- 26-B-110IF
- Issued by
- Volusia County, Florida
About this file
This is a specification document for metal raceways issued by Volusia County for the Branch Jail fire alarm system replacement project scheduled for December 5, 2025. The project encompasses the installation of approximately 68 new fire alarm devices with corresponding metal raceway infrastructure, including conduit, couplings, connectors, bushings, and support systems. The specification permits contractors to reuse existing fire alarm conduit systems and boxes where new fire alarm devices are installed in the same physical locations, provided that existing conduits and boxes are re-supported and fitted with new connectors and couplings as required. Contractors are responsible for supplying new conduit and boxes for all new fire alarm devices and equipment. The specification requires proper sealing of all new or existing conduits routed through smoke or fire-rated walls and barriers in accordance with UL listings.
The specification mandates the use of galvanized rigid and electro-galvanized EMT (Electrical Metallic Tubing) conduit manufactured by Republic, Pittsburgh Standard, Wheatland, Triangle, Allied, or Youngstown. Approved manufacturers for couplings, connectors, and fittings include Raco, Efcor, Appleton, Crouse-Hinds, and others as specified. Installation requirements include minimum conduit size of one-half inch unless otherwise noted, with galvanized rigid conduit required for underground applications, exterior use, areas exposed to moisture, and locations subject to mechanical injury. Liquid-tight flexible metal conduit with a maximum length of 24 inches must be used for final connections to motors, HVAC units, transformers, and other rotating or vibrating equipment. All exposed conduit runs must be parallel or perpendicular to building walls, and all raceways must be properly supported using approved clamps and hangers anchored to the building structure. Underground metallic conduits require two coats of asphaltum paint or Pittsburgh Standard Rob-Kote, and all empty conduits must include 200-pound test nylon pull cords.
View the file
Other files
Show 40 more
Latest 50 of 128 listed here. See the rest on GovTribe.
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
BID SET VOLUSIA COUNTY
DECEMBER 5, 2025 BRANCH JAIL
RACEWAYS - METAL 260533.00 - 1
SECTION 260533 – RACEWAYS - METAL
PART 1- GENERAL
1.1 SCOPE:
A. This section deals with the materials to be used as metal raceways, connections, and supports.
B. Minimum conduit size shall be 1/2” or unless otherwise noted.
C. Contractor may re-use the existing fire alarm conduit system including boxes where the new fire alarm devices are required to be replaced in the same physical locations. Contractor is responsible for re-supporting existing conduits and boxes, provide new conduit connectors and couplings as required to execute the fire alarm system replacement. Contractor is to provide new conduit and boxes for all new fire alarm devices and equipment per this project specification. New fire alarm devices account for approximately +/- 68 new fire alarm devices. Contractor is responsible for properly sealing all new or existing conduits that are routed through smoke or fire rated walls and barriers per the UL listing of the wall or barrier
PART 2 - PRODUCTS
2.1 CONDUIT - RIGID and E.M.T.:
A. Shall be galvanized outside and inside by hot dipping. E.M.T. shall be Electro-Galvanized.
Conduits shall be manufactured by Republic, Pittsburgh Standard, Wheatland, Triangle, Allied, or Youngstown.
2.2 COUPLINGS AND CONNECTORS RIGID AND I.M.C.:
A. Shall be standard threaded type, galvanized outside and inside by hot dipping. Threadless and clamp type not acceptable. Shall be manufactured by Raco, Efcor, or Appleton.
2.3 COUPLINGS AND CONNECTORS - E.M.T.:
A. Shall be steel threaded compression type. All couplings and connectors shall be Efcor or Raco.
Pressure indented type connectors or cast metal will not be approved for any location.
B. Connectors shall have plastic insulated throat inserts.
2.4 CONNECTORS - RAINTIGHT:
A. Shall be Meyers or Owner approved equal.
2.5 BUSHINGS:
A. Rigid, shall be threaded, insulated, malleable iron O.Z. type "B" or Efcor type 55. Grounding bushings shall be O.Z. type "LG" or Efcor type 56.
2.6 WATER-TIGHT FLEX CONNECTORS:
A. Shall be Efcor, Raco, or Midwest Liquid Tite, with insulated throat.
RACEWAYS - METAL 260533.00 - 2
2.7 CONDUIT CLAMPS AND SUPPORTS:
A. Shall be manufactured by Efcor, Raco, Steel City, or G.A. Tinnerman.
2.8 CONDUIT FITTINGS:
A. Shall be manufactured by Pyle-National, Crouse-Hinds, Raco, Russell & Stoll, or Appleton.
PART 3 - EXECUTION
3.1 CONDUIT, TYPE OF INSTALLATION:
A. Two inches and smaller may be used where concealed in ceiling or walls, where there is no danger of mechanical injury. E.M.T. may be used where exposed 4' above floor for conduits 2" or smaller, unless otherwise noted.
B. Unless shown or specified otherwise, galvanized rigid conduit shall be used as follows: (a) in floor slab, (b) for exterior use or other areas exposed to moisture, (c) where danger of mechanical injury exists, (d) through floor slab, (e) where E.M.T. or nonmetallic conduit is not specifically permitted per these specifications or NEC standards and within parking garages up to 8”-00” above each floor level.
C. Liquid-tight flexible metal conduit shall be used for final connection to all motors, exterior HVAC units, transformers, all data equipment and all other rotating or vibrating equipment. Maximum length of 24".
D. Conduit installed below building footings and thru exterior walls shall be galvanized rigid steel.
E. Flexible metallic conduit raceways may be used to connect HVAC units located in interior mechanical areas. Minimum size3/4 ”
3.2 INSTALLATION OF CONDUIT, E.M.T., RIGID:
A. Follow methods which are appropriate and approved for the location and conditions involved.
Where not otherwise shown, specified, or approved in a particular case, run all wiring concealed.
B. Where rigid, and aluminum conduits enter boxes they shall be secured in place by approved lock nuts each side and bushings.
C. Where E.M.T. enters boxes, they shall be secured in place with approved threaded compression type fittings.
D. Conduit ends shall be carefully plugged during construction.
E. Use of running threads is absolutely prohibited. Conduit shall be jointed with approved conduit couplings. All couplings on I.M.C. and rigid conduit shall be threaded.
RACEWAYS - METAL 260533.00 - 3
F. Before installing raceways for motors and fixed appliances, check locations of motor and/or appliance connections and locate and arrange raceways appropriately. Provide liquid tight flexible conduit connections to all motors, kitchen equipment, dry type transformers, and/or any equipment which has moving or vibrating parts. Liquid tight flexible metal conduit shall generally not exceed 24" in length.
G. Exposed conduit runs shall be Parallel/ Perpendicular and/or at right angles to building walls and/or partitions.
H. Where conduit crosses a structural expansion joint an approved conduit expansion fitting will be installed.
I. Fasten conduit securely in place by means of approved conduit clamps, hangers, supports, and fastenings. Arrangements and methods of fastening all conduits shall be subject to Architect/Engineer's direction and approval. Use only approved clamps on exposed conduit.
J. Apply two coats of asphaltum paint to all underground metallic conduits. Carefully retouch any breaks in paint and allow drying before covering with earth. Leave exposed until after Architect/Engineer's inspection. Pittsburg Standard Rob-Kote may be used in lieu of painting.
K. Conduit shall be sized in accordance with the latest National Electrical Code except that no conduit shall be smaller than 1/2" unless otherwise noted. Conduit shall be sized larger than required above when so shown on the drawings or when required by local Code.
L. No conduit with an external diameter larger than 1/3 the thickness of the slab shall be placed in the slab. Conduits in slab shall not be spaced closer than 3 diameters on center.
M. All exposed conduit threads, metal supports, etc., exposed to elements or exterior of building shall be painted with rust preventive paint.
N. A 200 lb. test nylon pull cord shall be installed in all empty conduits.
O. All conduit connections to sheet metal cabinets or enclosures subject to the elements shall be terminated using raintight hubs.
P. Any conduit stubbed out for future shall be capped with a plastic cap and marked with a 2" minimum red metal tag which identifies conduit origin. Conduits stubbed up above grade or roof shall be tagged on the conduit. Conduit stubbed out below grade shall be tagged on nearest building wall, curb, etc., directly over the conduit run. All empty conduits shall have pull wires.
Q. Conductors shall not be installed in raceways until the raceway is completely installed, free of any foreign matter, and dried.
R. Install pull boxes in all runs having more than 270 degrees total bending (all directions combined and each complete offset counting as 90 degrees) or in runs more than 200' long.
S. Unless otherwise stated in these specifications or noted on the drawings, all raceway penetrations shall be made only at perpendicular angles to the penetrated surfaces. In no case shall conduit which is run along exterior walls penetrate insulation or vapor barriers.
RACEWAYS - METAL 260533.00 - 4
T. Raceways not concealed in slabs or walls shall be securely anchored at regular intervals in accordance with NFPA 70 "NEC".
U. Use only galvanized pipe straps, wall brackets, or ceiling trapezes anchored with toggle bolts, expansion bolts, metal screws, or wood screws as appropriate.
V. Ceiling trapezes shall be supported by quarter-inch minimum diameter all-thread rods securely attached to the structure ceiling.
W. Raceways shall not be supported from the finished ceiling, mechanical duct work, piping, or from other equipment.
X. Straps and hangers shall be in accordance with the National Electrical Code and as recommended by the raceway manufacturer.
Y. Ceiling tie wire used to support conduit or devices is strictly prohibited.
Z. Install connectors and couplings per the requirements of the Manufacturer. Tighten to torque requirements.
AA. Conduits which extend through the roof and extend to roof top equipment shall be galvanized rigid protected with a weatherproof and watertight pate roof boot or equal per the roof installer warranty.
All penetrations through roof and pate roof boots shall be approved by the roof warranty guarantor and be accepted by the roof warranty guarantor prior to use. Written authorization by roofing company shall be provided during submittal phase.
END OF SECTION 260533
| 1. |
| 1.1 SCOPE: |
| 2. |
| 2.1 CONDUIT - RIGID and E.M.T.: |
| 2.2 COUPLINGS AND CONNECTORS RIGID AND I.M.C.: |
| 2.3 COUPLINGS AND CONNECTORS - E.M.T.: |
| 2.4 CONNECTORS - RAINTIGHT: |
| 2.5 BUSHINGS: |
| 2.6 WATER-TIGHT FLEX CONNECTORS: |
| 2.7 CONDUIT CLAMPS AND SUPPORTS: |
| 2.8 CONDUIT FITTINGS: |
| 1. |
| 3.1 CONDUIT, TYPE OF INSTALLATION: |
| 3.2 INSTALLATION OF CONDUIT, E.M.T., RIGID: |
File details come from the government source that posted it. Updated .