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Sheet
Drawing No.
HILTI, Inc.
Date
Scale
1. CONCRETE WALL ASSEMBLY (2-HR. FIRE-RATING) :
A. LIGHTWEIGHT OR NORMAL WEIGHT CONCRETE WALL (MINIMUM 5" THICK).
B. ANY UL/cUL CLASSIFIED SOLID OR FILLED CONCRETE BLOCK WALL.
2. MAXIMUM 24" WIDE x 4" DEEP, ALUMINUM OR STEEL, OPEN LADDER OR SOLID BACK CABLE TRAY.
3. CABLES TO BE ANY COMBINATION OF THE FOLLOWING :
A. MAXIMUM 300 PAIR NO. 24 AWG TELEPHONE CABLE.
B. MAXIMUM 750 KCMIL SINGLE CONDUCTOR POWER CABLE.
C. MAXIMUM 1/2" DIAMETER FIBER-OPTIC CABLE (24 FIBER).
D. MAXIMUM 3/C NO. 12 AWG METAL-CLAD CABLE.
4. HILTI CFS-BL FIRESTOP BLOCK (2" THICK x 8" WIDE x 5" DEEP, REFERENCE : FRONT VIEW) FIRMLY
PACKED AND CENTERED WITHIN OPENING OR FLUSH WITH ONE SIDE (SEE NOTE NO. 7 BELOW).
NOTES : 1. MAXIMUM AREA OF OPENING = 900 SQ. IN., WITH A MAXIMUM DIMENSION OF 30".
2. ANNULAR SPACE = MINIMUM 0", MAXIMUM 26".
3. CABLES TO FILL MAXIMUM 45% OF CROSS-SECTIONAL AREA OF CABLE TRAY.
4. APPLY HILTI FS-ONE INTUMESCENT FIRESTOP SEALANT, CP 618 FIRESTOP PUTTY STICK, OR
CP 620 FIRE FOAM, IN ANY VOID THAT MAY EXIST (INTO INTERSTICES OF CABLES, BETWEEN
CABLES AND CABLE TRAY) TO MAXIMUM EXTENT POSSIBLE.
5. WHEN ANNULAR SPACE EXCEEDS 12", ABOVE , BELOW, OR TO THE SIDES OF THE CABLE
TRAY, A NOMINAL 1" HEXAGONAL STEEL WIRE MESH (20 GA. OR HEAVIER) OR NOMINAL 2" x
2" STEEL WIRE MESH (16 GA.) SHALL BEGIN MAXIMUM 2-1/2" FROM PENETRATING ITEM AND
OVERLAP MINIMUM 3" BEYOND THE PERIPHERY OF THE OPENING. WIRE MESH SHALL BE
ATTACHED TO BOTH SIDES OF THE WALL WITH 1/4" DIAMETER x 1" LONG STEEL CONCRETE
ANCHORS AND 1-1/2" DIA. FENDER WASHERS (SPACED MAX. 8" C/C).
6. [NOT SHOWN] AS AN ALTERNATE TO WIRE MESH, STEEL PLATE (MIN. 22 GA.) MAY BE USED.
STEEL PLATE SHALL BE ATTACHED TO STEEL STRUTS (13/16" DEEP x 12 GA.) WITH 1/4" DIA.
STEEL NUTS (SPACED 8" C/C). STRUT SHALL BE SECURED TO BOTH SURFACES OF THE WALL
ASSEMBLY WITH 1/4" DIA. x 1" LG. STEEL CONCRETE ANCHORS WITH STEEL NUTS (SPACED
MAX. 12" C/C).
7. FOR BLOCK WALLS, FIRESTOP BLOCKS TO FILL ENTIRE THICKNESS OF WALL UNLESS WALL
IS SOLID FILLED.
WJ
4072b
2 of 2
-
UL/cUL SYSTEM NO. W-J-4072
F-RATING = 2-HR.
T-RATING = 0-HR.
CABLE TRAY THROUGH CONCRETE WALL OR BLOCK WALL ASSEMBLY
Tulsa, Oklahoma USA (800) 879-8000
Dec. 11, 2012
WJ4072b.121112