HomeMy WebLinkAboutE104.0Spacing for Conductor Supports
Size of Wire Support of Conductors
in Vertical Raceways
Aluminum or Copper-Clad Aluminum
Feet/Meters
18 AWG thru 8 AWG
6 AWG thru 1/0 AWG
2/0 AWG thru 4/0 AWG
over 4/0 AWG - 350 kcmil
over 350 kcmil - 500 kcmil
over 500 kcmil - 750 kcmil
over 750 kcmil
Not greater than
Not greater than
Not greater than
Not greater than
Not greater than
Not greater than
Not greater than
100/30
200/60
180/55
135/41
120/36
95/28
85/26
Copper
Feet/Meters
100/30
100/30
80/25
60/18
50/15
40/12
35/11
Recommended 0-Z/Gedney Cable SupportsApplication
F Ratings - 1, 2, 3 and 4 Hr (See Items 2 and 3)
T Ratings - 0, 1, 2, 3, and 4 Hr (See Item 3)
L Rating @ Ambient - less than 1 CFM/sq ft
L Rating @ 400° F - less than 1 CFM/sq ft
1. Wall Assembly - The 1, 2, 3 or 4 hr fire-rated gypsum wallboard/stud wall assembly shall be constructed of the materials and in the manner described in the individual U300 or U400 Series
Wall or Partition Designs in the UL Fire Resistance Directory and shall include the following construction features:
A. Studs - Wall framing may consist of either wood studs (max 2 hr fire rated assemblies) or steel channel studs. Wood studs to consist of nom 2 by 4 in. (51 by 102 mm) lumber spaced
16 in. (406 mm) OC with nom 2 by 4 in. (51 by 102 mm) lumber end plates and cross braces. Steel studs to be min 3-5/8 in. (92 mm) wide by 1-3/8 in. (35 mm) deep channels spaced
max 24 in. (610 mm) OC.
B. Gypsum Board* - Nom 1/2 or 5/8 in. (13 or 16 mm) thick, 4 ft. (122 cm) wide with square or tapered edges. The gypsum wallboard type, thickness, number of layers, fastener type
and sheet orientation shall be as specified in the individual U300 or U400 Series Design in the UL Fire Resistance Directory. Max diam of opening is 26 in. (660 mm).
2. Through Penetrant - One metallic pipe, conduit or tubing installed either concentrically or eccentrically within the firestop system. The annular space between pipe, conduit or tubing and
periphery of opening shall be min of 0 in. (0 mm) (point contact) to max 2 in. (51 mm). Pipe, conduit or tubing to be rigidly supported on both sides of wall assembly. The following types and
sizes of conduits may be used:
A. Conduit - Nom 6 in. (152 mm) diam (or smaller) steel conduit or nom 4 in. (102 mm) diam (or smaller) steel electrical metallic tubing
3. Fill,Void or Cavity Material* - Caulk or Sealant - Min 5/8. 1-1/4,1-7/8 and 2-1/2 in. (16, 32, 48 and 64 mm) thickness of caulk for 1, 2, 3 and 4 hr rated assemblies, respectively, applied
within annulus, flush with both surfaces of wall. Min 1/4 in. (6 mm) diam bead of caulk applied to gypsum board/penetrant interface at point contact location on both sides of wall.
The hourly F Rating of the firestop system is dependent upon the hourly fire rating of the wall assembly in which it is installed, as shown in the following table.
The hourly T Rating of the firestop system is dependent upon the type or size of the pipe or conduit and the hourly fire rating of the wall assembly in which it is installed, as tabulated below:
+When copper pipe is used, T Rating is 0 hr.
3M COMPANY - CP 25WB + or FB-3000 WT ,
*Bearing the UL Classification Marking
1. Floor or Wall Assembly - Lightweight or normal weight (100-150 pcf or 1600-2400 kg/m3) concrete. Except as noted in table under Item 4, min thickness of solid concrete floor or wall
assembly is 4-1/2 in. (114 mm). Floor may also be constructed of any min 6 in. (152 mm) thick UL Classified hollow core Precast Concrete Units*. When floor is constructed of hollow
core precast concrete units, packing material (Item 3) and caulk fill material (Item 4) to be installed symmetrically on both sides of floor, flush with floor surface. Wall assembly may also
be constructed of any UL Classified Concrete Blocks*. Max diam of opening is in solid lightweight or normal weight concrete. Floor is 32 in. (813 mm). Max diam of opening in floor
constructed of hollow-core precast concrete units is 7 in. (178 mm).
See Concrete Blocks (CAZT) and Precast Concrete Units (CFTV) categories in the Fire Resistance Directory for names of manufacturers.
1A. Steel Sleeve (Optional, not shown) - Nom. 16 in. (406 mm) diam. (or smaller) Schedule 10 (or heavier) steel sleeve cast or grouted into floor or wall assembly. Sleeve may extend a
max of 2 in. (51 mm) above top of floor or beyond either surface of wall. As an alternate, nom. 16 in. (406 mm) diam. (or smaller) min 0.028 (0.71 mm) thick galvanized sheet steel
sleeve cast or grouted into floor or wall assembly flush with floor or wall surfaces.
2. Through Penetrants - One metallic pipe, conduit or tubing to be installed either concentrically or eccentrically within the firestop system. Max annular space between pipe, conduit or
tubing and edge of through opening or sleeve is dependent on the parameters shown in Item 4. Min annular space between pipe or conduit and edge of through opening is 0 in. (point
contact). Max. annular space to be as shown in the table in Item 4. Pipe, conduit or tubing to be rigidly supported on both sides of floor or wall assembly. The following types and sizes
of metallic pipes, conduits or tubing may be used.
A. Conduit - Nom 6 in. (152 mm) diam (or smaller) rigid steel conduit.
B. Conduit - Nom 4 in. (102 mm) diam (or smaller) steel electrical metallic tubing.
3. Packing Material - Polyethylene backer rod or nom 1 in. (25 mm) thickness of tightly-packed mineral wool batt or glass fiber insulation firmly packed into opening as a permanent form.
Packing material to be recessed from top surface of floor or from both surfaces of wall as required to accommodate the required thickness of caulk fill material (Item 4).
3A. Forming Material - As an alternate to the packing material in Item. 3, nom. 4 in. (102 mm) wide strips of min. 1/2 in (13 mm) thick compressible mat to be stacked to a thickness
greater than the width of the annular space and compression-fitted, edge-first, to fill the annular space to a min. 4 in. (102 mm) depth. As an option, the strips of min. 1/2 in. (13 mm)
thick compressible mat may be folded in half, lengthwise, and stacked to a thickness greater than the width of the annular space and compression-fitted, edge-first, to fill the annular
space to a min. 2 in. (51 mm) depth. Top of forming material to be recessed from top furface of floor or from both surfaces of wall as necessary to accommodate the rquired thickness
of caulk fill material.
3M COMPANY - Fire Barrier Packing Material.
4. Fill,Void or Cavity Material* - Caulk, Sealant - Applied to fill the annular space flush with top surface of floor. In wall assemblies, required caulk thickness to be installed symmetrically
on both sides of wall, flush with wall surface. At point contact location between penetrant and sleeve or between penetrant and concrete, a min 1/4 in. (6 mm) diam bead of caulk shall be
applied at top surface of floor and at both surfaces of wall. The hourly F Ratings and the min required caulk thicknesses are dependent upon a number of parameters, as shown in the
following table:
a. Min 2 in. (51 mm) thickness of mineral wool batt insulation or forming material (Item 3A) required in annular space.
b. Min 1 in. (25 mm) thickness of mineral wool batt insulation required in annular space on both sides of floor or wall assembly. Min 1 in. (25 mm) thickness of caulk to be installed
flush with each surface of floor or wall assembly.
3M COMPANY - CP 25WB + or FB-3000 WT. (Note: W Rating applies only when FB-3000 WT sealant is used.)
*Bearing the UL Classification Marking
Min Floor or Wall
Thkns In. (mm)
Nom Pipe Tube or
Conduit Diam in. (mm)
Max Annular
Space in. (mm)
Min Caulk
Thkns in. (mm)
F Rating
Hr
2-1/2 (64) 1/2-12 (13-305) 1-3/8 (35) 1/2 (13) 2
2-1/2 (64) 1/2-12 (13-305) 3-1/4 (83) 1 (25) 2
4-1/2 (114) 1/2-6 (13-152) 1-3/8 (35) 1/4 (6) (a) 2
4-1/2 (114) 1/2-12 (13-305) 1-1/4 (32) 1/2 (13) 3
4-1/2 (114) 1/2-20 (13-508) 2 (51) 1 (25) 3
4-1/2 (114) 1/2-20 (13-508) 2 (51) 1 (25) 3
4-1/2 (114) 1/2-12 (13-305) 3-1/4 (83) 1 (25) 3
4-1/2 (114) 22-30 (558-762) 2 (51) 2 (51) 3
5-1/2 (140) 1/2-6 (13-152) 1-3/8 (35) 1 (25) (b) 4
F Ratings - 2, 3, and 4 Hr (See item 2A and 4)
T Rating - 0 Hr
L Rating @ Ambient - 2 CFM/sq ft
L Rating @ 400 F - less than 1 CFM/sq ft
W Rating - Class I (See Item 4)
200 AMP MCB, 208/120V, 3 PHASE 4W
PANEL 'X'
PANEL 'B' IS LOCATED IN EL. ROOM
FEED FROM PANEL 'B', XXX AMP BREAKER Phone 727 . 781 . 7525 Fax 727 . 781 . 6623Member of the American Institute of Architects32707 US Hwy. 19 Palm Harbor, FL 34684www.oliveriarchitects.comGRINER ENGINEERING, INC.
3125 Fifth Ave N., Suite 300
St. Petersburg, Florida 33713
Phone: (727)-822-2335
Fax: (727)-821-3361
Date
Drawn
Designed
EOR
Job no. 21066
06-25-21
JHGJHG License PE# 10606781State of IndianaJoseph H. Griner III, P.E.OR
OR
This item has been electronically signed and sealed by
Joseph H. Griner using a Digital Signature and date.
Printed copies of this document are not considered
signed and sealed and the signature must be verified
on any electronic copies.Joseph H.Griner IIIDigitally signed byJoseph H GrinerIII:A01410C000001781398060100000C22Date: 2021.07.1611:45:38 -04'00'07/27/21