Alpha Technologies Te43 - Manual (Page 20)

Alpha Technologies Ltd. 057-104-C0 Rev B WC
Burnaby, British Columbia. Telephone: 604 436 5900 Fax: 604 436 1233. Page 15 of 27
4.1.5 Steel platform
Use 1.27 cm (½ ”) diameter A325 structural bolts in conjunction with a backing plate/clasp to grip the underside of
the grating. Once the enclosure is in place, secure the bolts on the inside using appropriate washers and bolts.
See the following figure:
CAUTION: Installation on a wood base is not recommended. The compressive strength of the base
material would not be able to maintain the load during a Type 4 seismic event.
Figure 11 – Installation on steel platform