Page 184 - Urban Construction Project Management

Logistics 139
3-phase power for general lighting, small tools, etc. If only low voltage power is avail-
able, consideration should be given to stepping up the voltage to higher voltage for ease
of distribution and compatibility with construction equipment. The electrical panels and
circuit breakers need to have ground fault interrupting (GFI) protection to protect the
workers and equipment properly, as well as comply with applicable codes and OSHA
safety requirements.

STANDPIPE

A temporary fire standpipe needs to be installed in the building during the construction
process to allow the fire department to fight a fire if required. One of the permanent
standpipes is often used on an interim basis to provide this protection. The standpipe is
dry, and fed from a Siamese connection that must be accessible from the street, outside
of the sidewalk fence enclosing and securing the site. The height of the standpipe
should be not less than two floors below the top floor. A sign must also be provided
indicating the location of the Siamese connection at street level (see Exhibit 6-20).
Portable fire extinguishers are also required on the site in addition to the standpipe.
These fire extinguishers are often placed in the CM/GC field office, subcontractor
shanties, at stairwells, and near welding, cutting, and use of flammable materials and
fuels. The extinguisher should be of the proper size and type for the application.

Exhibit 6-20
Siamese
connection.