Communication Server Large System Installation and Commissioning

Page 346 of 456 Installing earthquake bracing
NN43021-310 Standard 02.01 December 2007
Next, each column must also be secured to the floor. This is accomplished by
installing one of two available anchor kits. Select the anchor kit by comparing
the site requirements to Table 62 on page 346. This table shows that either
anchor kit can be used to meet the CALIFORNIA OSHPD specification, but
only Kit B meets the BELLCORE specification. For those installations where
neither specification is required, Kit A is recommended due to its shallower
concrete requirement.
Both anchor kits can be used in hardrock concrete as long as the compressive
strength exceeds 20.7 MPa (3000 psi). Only Kit A can be used in lightweight
aggregate concrete with a compressive strength greater than 27.6 MPa
(4000 psi). The floor parameters for your installation can usually be found in
the engineering building drawings.
The kits listed in Table 62 on page 346 contain commercially available
mounting hardware. You have the option of purchasing the contents directly
from the manufacturer (using the listing below) or ordering the kits directly
from Nortel.
• Kit A (NT8D64BE) contains four of each of the following items:
— Hilti HDI 3/4 in., box of 25, manufacturer part # 457564 (Hilti
Corporation [phone]) or Multi-Set II, manufacturer
part # RM-34 (ITW Ramset/Redhead, Incorporated (219)
874-4217)
— Hex head bolt, 3/4 in. -10 x 1.50” long, steel material, zinc plate
finish
Table 62
Seismic Anchor Kit
Kit
Seismic
Anchor Kit
BELLCORE
CAL
OSHPD
Concrete
thk (min)
Light-
weight
A NT8D64BE No Yes 90 mm
(3.5 in.)
Ye s
B NT8D64CE Yes Yes 180 mm
(7 in.)
No