AT&T INSTALLATION REQUIREMENT CHANGE NOTIFICATION - ATT-TP-76300-064

TO: ALL AT&T INSTALLATION SUPPLIERS Date: 04-27-2009

EFFECTIVE DATE: 5 days from posted date or as per Supplier’s Contract

Submitter’s Name: Larry Wong

TP: TP76300 Subject: Fire Stop Labeling Requirements Action: Add Modification: Delete:

Section: F Section Title: Fire Stopping

Subsection: 5 Section Title: Fire Stop Label Requirements

Subsection: 5.1 Subsection Title: Fire Stop Labels

Prior to Change:

5.1.1a – On wall openings closed with 3M or Hilti products, the label shall be affixed to the intumescent sheet, wire mesh or solid cover plate and the building surface it is attached to. For applications not requiring cover, mesh or sheet such as Hilti Z-Frame and blocks, the label shall be applied across the Z-Frame and one fire stop block immediately next to a block up against cables.

Post Change:

5.1.1a – On wall openings closed with 3M or Hilti products, two labels shall be applied across the fire stop board, or when fire stop blocks are installed, two labels across wire mesh or solid cover plate. The labels shall be affixed to the building surface and fire stop material/cover on front and rear of the cable opening (a total of 4 labels per opening). The labels shall be placed one on right and the other on left side of the fire stop board, wire mesh or solid cover plate of front and rear opening locations. For applications with fire blocks and Hilti Z-Frame or fire stop board/block combination with Hilti Z-Frame, labels shall be applied on the working side only of the cable hole closure across a rotating Z-frame latch retaining block, board or T-bar. One label on right side and another label on left side of opening are required. The label shall be applied so a latch, fire stop material and Z-frame surface are all contacted.

Questions relative to this IRCN should be addressed to Lawrence E. Lyles at 404-927-7722

Lawrence E. Lyles

Lead Network Engineering Manager

Access the TP's on the Extranet Site https://ebiznet.sbc.com/sbcnebs

Concurred

Senior Engineering Manager-Network Quality, West Date: 04-20-09

(Mike Sula)

Lead Network Engineering Manager (Larry Wong) Date: 04-23-09

Release Approved

Lead Network Engineering Manager Date: 04-24-09

(Lawrence E. Lyles)

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