Page 447 - 2018_IFC

EXPLOSIVES AND FIREWORKS

SECTION 5607 the power source or initiation point. Connections shall be
BLASTING made progressively from the blasthole back to the initiation
point.
5607.1 General. Blasting operations shall be conducted only
by approved, competent operators familiar with the required Blasting lead lines shall remain shunted (shorted) and shall
safety precautions and the hazards involved and in accor- not be connected to the blasting machine or other source of
dance with the provisions of NFPA 495. current until the blast is to be fired.
5607.2 Manufacturer’s instructions. Blasting operations 5607.13 Firing control. A blast shall not be fired until the
shall be performed in accordance with the instructions of the blaster has made certain that all surplus explosive materials
manufacturer of the explosive materials being used.
are in a safe place in accordance with Section 5607.10, all
5607.3 Blasting in congested areas. Where blasting is done persons and equipment are at a safe distance or under suffi-
in a congested area or in close proximity to a structure, rail- cient cover and that an adequate warning signal has been
way or highway, or any other installation, precautions shall given.
be taken to minimize earth vibrations and air blast effects. 5607.14 Post-blast procedures. After the blast, the follow-
Blasting mats or other protective means shall be used to pre- ing procedures shall be observed.
vent fragments from being thrown.
1. Persons shall not return to the blast area until allowed
5607.4 Restricted hours. Surface-blasting operations shall
only be conducted during daylight hours between sunrise and to do so by the blaster in charge.
sunset. Other blasting shall be performed during daylight 2. The blaster shall allow sufficient time for smoke and
hours unless otherwise approved by the fire code official. fumes to dissipate and for dust to settle before returning
5607.5 Utility notification. Where blasting is being con- to or approaching the blast area.
ducted in the vicinity of utility lines or rights-of-way, the 3. The blaster shall inspect the entire blast site for misfires
blaster shall notify the appropriate representatives of the utili- before allowing other personnel to return to the blast
ties not less than 24 hours in advance of blasting, specifying area.
the location and intended time of such blasting. Verbal
notices shall be confirmed with written notice. 5607.15 Misfires. Where a misfire is suspected, all initiating
circuits shall be traced and a search made for unexploded
Exception: In an emergency situation, the time limit shall charges. Where a misfire is found, the blaster shall provide
not apply where approved. proper safeguards for excluding all personnel from the blast
5607.6 Electric detonator precautions. Precautions shall be area. Misfires shall be reported to the blasting supervisor
taken to prevent accidental discharge of electric detonators immediately. Misfires shall be handled under the direction of
from currents induced by radar and radio transmitters, light- the person in charge of the blasting operation in accordance
ning, adjacent power lines, dust and snow storms, or other with NFPA 495.
sources of extraneous electricity.
5607.7 Nonelectric detonator precautions. Precautions SECTION 5608
shall be taken to prevent accidental initiation of nonelectric FIREWORKS DISPLAY
detonators from stray currents induced by lightning or static
electricity. 5608.1 General. Outdoor fireworks displays, use of pyro-
technics before a proximate audience and pyrotechnic special
5607.8 Blasting area security. During the time that holes are
being loaded or are loaded with explosive materials, blasting effects in motion picture, television, theatrical and group
agents or detonators, only authorized persons engaged in entertainment productions shall comply with Sections 5608.2
drilling and loading operations or otherwise authorized to through 5608.10 and NFPA 1123 or NFPA 1126.
enter the site shall be allowed at the blast site. The blast site 5608.2 Permit application. Prior to issuing permits for a
shall be guarded or barricaded and posted. Blast site security fireworks display, plans for the fireworks display, inspections
shall be maintained until after the post-blast inspection has of the display site and demonstrations of the display opera-
been completed. tions shall be approved. A plan establishing procedures to
5607.9 Drill holes. Holes drilled for the loading of explosive follow and actions to be taken in the event that a shell fails to
charges shall be made and loaded in accordance with NFPA ignite in, or discharge from, a mortar or fails to function over
495. the fallout area or other malfunctions shall be provided to the
fire code official.
5607.10 Removal of excess explosive materials. After load-
ing for a blast is completed and before firing, excess explo- 5608.2.1 Outdoor fireworks displays. In addition to the
sive materials shall be removed from the area and returned to requirements of Section 403, permit applications for out-
the proper storage facilities. door fireworks displays using Division 1.3G fireworks
shall include a diagram of the location at which the fire-
5607.11 Initiation means. The initiation of blasts shall be by works display will be conducted, including the site from
means conforming to the provisions of NFPA 495.
which fireworks will be discharged; the location of build-
5607.12 Connections. The blaster shall supervise the con- ings, highways, overhead obstructions and utilities; and
necting of the blastholes and the connection of the loadline to the lines behind which the audience will be restrained.

414 2018 INTERNATIONAL FIRE CODE ®
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