The abbreviation for total product, which is the total quantity of output produced by a firm for a given quantity of inputs. Who is tp Luce? Telecom Equipment Installation Training Take the roll of … toilet paper, rip the glued piece so the roll is now free to unravel. Tip Be sure … that you take a few squares off the roll to insure it will unroll as you throw it.
|Published (Last):||12 July 2004|
|PDF File Size:||20.43 Mb|
|ePub File Size:||6.73 Mb|
|Price:||Free* [*Free Regsitration Required]|
They shall be fire stopped as follows: a Each individual coax cable shall not be individually wrapped with an intumescent putty pad. After installing cables and applying smoke stopping material between the cables, the Installation Supplier shall tightly band cables together to compress the cable bundle and effectively join smoke stopping material to form an airtight seal.
See Figure F Refer to Section J of this document. To avoid unnecessary buildup of cable bundles, the vendor shall not wrap each individual cable with a putty strip. Existing wall penetration applications are required to be inspected for conformance to 3M UL Listed System drawings to pillow compression requirements and cable pileup limits. Gener 4. Use mineral wool batting of 3 or 4 inches thickness and cut 2 inches oversized to ensure a tight fit.
Force mineral wool batting into the slot and press up against the covers to tightly pack all voids between vertical bundles of stub cables.
No bottom plates are required with this method. Cutting and wrapping should be done in an area other than the telephone equipment area. Partitions are not required if the occupied and unoccupied portion s of a slot are fire stopped in the same manner with the same fire stopping products. The partition shall be fastened to ceiling cover plates or to the building surface at a minimum of two locations at the lower end and shall be fastened at a minimum of one location at the upper end.
The use of multi-piece partitions is acceptable. Multi-piece partitions shall be fastened together with a minimum of two fasteners in a manner that assures the pieces will react as a single rigid piece when subjected to pressure. It is relative to cable pileup allowances on miscellaneous cable racks. The longest allowable dimension comprising the 2, square inches is 52 inches. An RFTA may also be requested. Refer to Figure F Refer to Table F Support stirrups — Six stirrups shall be installed for support of a drop in intumescent sheet.
When the cable hole is wider than 24 inches, additional stirrups shall be placed not to exceed 12 inches between stirrups. When cable is mined beyond the midpoint of the rear of the cable hole, install a rear center stirrup. Modified steel ceiling cover plate — Cut the bottom steel cover plate to create a modified cover plate on the bottom of the cable hole using all existing and accessible fastener holes. For new holes cut into existing floors, a bolt shall be placed within 2 inches of all corners.
This arrangement will be used to support a drop in intumescent sheet. Bolt the intumescent sheet directly to the bottom cable hole cover support or ceiling surface. Additional bolts and fender washers shall be placed around the perimeter and spaced not more than 6 inches apart.
A bead of putty shall be placed under the seam strip where the two pieces join together. Refer to Figures F-3 and F This dome of putty shall extend a minimum of 1 inch out from the cable and 1 inch up from the bottom intumescent sheet. This shall include the space between the stirrups and the interior wall of the cable hole and wall and partition, if equipped.
The seam of the butted edges which may extend entire width of opening shall be covered with a 2 inches wide, 28 gauge galvanized steel strip centered over the seam. F-9 Section F, ATT-TP October, k When the steel cover plate does not cover the total perimeter of the top intumescent composite sheet, additional bolts with fender washers shall be provided through the exposed intumescent sheet on 6 inch centers to secure the top intumescent sheet to the cable hole sheathing.
This dome of putty shall be packed tightly into the space between the cables and the composite sheet. The dome shall extend a minimum of 1 inch from the cable and up from the top of the composite sheet.
Refer to Figures F, F and F The seam shall be covered with a 2inch wide, 28 gauge galvanized steel strip centered over the seam. The seam cover shall be secured with self-tapping screws spaced at 3-inch maximum O. This dome of putty shall be 1-inch minimum out from the cable along the composite sheet and 1 inch out from the composite sheet along the cable. Empty cable openings shall be fire stopped using a single piece composite sheet on both sides of the opening.
Refer to figures F and F Empty Openings Using 3M Products 4. Where they presently exist, the opening shall be fire stopped in the manner shown in Figures F The blocks shall be installed in an overlapping staggered fashion to completely fill the remaining interior void of the through penetration.
Fire block installation shall equal wall thickness for power a nd fiber only holes in walls measuring 5 to 8-inches thick. Exception: When Fire Blocks are installed in conjunction with the Z-frame per section 4.
There shall be no spaces between fire blocks. This perimeter of putty material is required at both sides of wall openings. The cover for these floor penetrations shall be 20 gauge steel. For walls 8inches or less thick, wire mesh covers may be used if the fire blocks are installed in the 8-inch direction. Cover fasteners shall be appropriate for the building surface they are installed in. Wall holes shall not have wire mesh on one side and a steel cover plate on the other side.
Refer to figure F for general strut system application guidelines. The T-bar will provide the necessary resistance for fire hose stream requirement when fire block height does not exceed 6 inches above or below T-bar and wall opening height does not exceed 12 inches. Hilti Z-frame shall be secured around perimeter of wall penetration and T-bar secured with two rotating latches over face of the T-bar. T-bar may be screw fastened to Z-frame but makes future movement of T-bar more difficult when adding or removing cables.
F 4. Replacement of Hilti Fire Stop Blocks 4. The blocks shall be in one piece, compressible and pliable without tears, breaks, cracks, flaking, powdering, or signs of wear. Fire blocks showing any unacceptable conditions stated shall be removed and replaced with new block.
Blocks cut to fit openings are not considered unacceptable blocks. After 25 years in service the old blocks shall be removed and replaced with new blocks. The examination and replacement of blocks should only occur when cable penetration is opened as a part of a cable project in the office. Blocks with fewer than 5 years of life remaining shall be replaced.
Any block that is not dated shall be assumed to have been pl aced into service January The alternative method reduces the number of fire stop blocks required for fire stopping large penetrations by replacing fire stop blocks with fire stop boards.
Procedures for fire stopping using Hilti FS fire blocks shall be in accordance to paragraph 4. Limit fire blocks above cables to no more than three rows to avoid wire mesh requirement. The Hilti Zframe lengths are installed to two vertical sides and top edge of the penetration secured to studs or directly to wall if concrete or masonry.
Distance holders attached to interior board keeps outside board flush with wall. Finish by applying Hilti CP T putty to perimeter of board for smoke stop. This system will be a fire block only application. Fire stopping to this system does not require outer wire mesh if installed in accordance to Figure F Where they presently exist, the opening shall be fire stopped in the manner shown in Figure F Because of the greater cost for installing the hardware, only authorized penetrations shall be equipped with quick-release feature.
Quickrelease feature allows cover to be removed and replaced without tools. Kits are available from Hilti. The shavings are generated from the drilling of sheathing to install inserts. The area directly under sheathing shall be sealed with flame resistant plastic sheet taped to side of opening and around cables. The plastic sheet shall be formed to capture all shavings.
ATT TP 76300 F Fire Stopping
ATT TP 76300 Complete