reglab/statecodes huggingface dataset:
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 114 - Storage of Explosive Materials › Section 5252 - Quantity and Distances Table for the Storage of Explosive Materials

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) The quantity of
						explosive materials that may be kept or stored in any magazine shall conform to
						Table EX-1, Table of Distances, which sets forth the minimum distance that a
						magazine may be located from the nearest inhabited building or other
						magazine.
(b) The quantity and
						distance table is not applicable to any magazine if the nearest inhabited
						building is effectually screened from the magazine by a natural barrier, which:
(1) Is 40 feet or more in height at any
						point, above a straight line drawn from the top of any sidewall of the magazine
						to any part of the inhabited building; and
(2) Has a natural thickness of not less than
						200 feet at the point where it is intersected by the straight
						line.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 114 - Storage of Explosive Materials › Section 5252.1 - Quantity and Distance Table for Storage of Explosives-Low Explosives Distances in Feet when Storage is Unbarricaded

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) These explosives normally will be
						confined to pressure ruptures of containers and will not produce propagating
						shock waves or damaging blast over pressure beyond the magazine distance
						specified for this class. These distances are unbarricaded.
Pounds Over
Pounds Not Over
Inhabited Buildings
Railways and Highways
Above Ground Magazine Separation Intraline
								  Separation
0
1,000
75
75
50
1,000
5,000
115
115
75
5,000
10,000
150
150
100
10,000
20,000
190
190
125
20,000
30,000
215
215
145
30,000
40,000
235
235
155
40,000
50,000
250
250
165
50,000
60,000
260
260
175
60,000
70,000
270
270
185
70,000
80,000
280
280
190
80,000
90,000
295
295
195
90,000
100,000
300
300
200
100,000
200,000
375
375
250
200,000
300,000
450
450
300
(b) Distances are not to be reduced by the
						presence of barricades or earth cover.
1. New
						  section filed 7-11-2003; operative 8-10-2003 (Register 2003, No.
						  28).
Note: Authority cited: Sections
							 142.3 and
							 7997, Labor
							 Code. Reference: Sections
							 142.3 and
							 7997, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 114 - Storage of Explosive Materials › Section 5253.1 - Construction and Use of Magazines

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Type 1 Magazines.
(1) A Type 1 magazine shall be a permanent
						structure; a building, igloo, tunnel, or dugout. It shall be bullet, theft,
						fire and weather resistant, and be well ventilated.
(A) A Type 1 magazine shall be built at least
						equivalent to one of the following methods:
1.
						8 inch masonry.
2. Metal of at
						least 14 gauge.
3. Wood frame with
						at least 26-gauge metal covering. No wood shall be exposed on the
						exterior.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 114 - Storage of Explosive Materials › Section 5254 - Magazine Heating

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						When heating systems are installed they shall be either hot water radiant
						heating within the magazine building; or air directed into the magazine
						building over either hot water or low pressure steam (15 psig) coils located
						outside the magazine building.
The magazine heating systems shall meet the following
						  requirements:
(1) The radiant heating
						coils within the building shall be installed in such a manner that the
						explosive materials or their containers cannot contact the coils and air is
						free to circulate between the coils and the explosive materials or their
						containers.
(2) The heating ducts
						shall be installed in such a manner that the hot air discharge from the duct is
						not directed against the explosive materials or their containers.
(3) The heating device used in connection
						with the magazine shall have controls which prevent the ambient building
						temperature from exceeding 130°F.
(4) The electric fan or pump used in the
						heating system for a magazine shall be mounted outside and separate from the
						wall of the magazine and shall be grounded.
(5) The electric fan motor and the controls
						for electrical heating devices used in heating water or steam shall have
						overloads and disconnects which comply with the Electrical Safety Orders. All
						electrical switch gear shall be located a minimum distance of 25 feet from the
						magazine.
(6) The heating source
						for water or steam shall be separated from the magazine by a distance of not
						less than 25 feet when electrical and 50 feet when fuel fired. The area between
						the heating unit and the magazine shall be cleared of all combustible
						materials.
(7) The storage of
						explosive materials and their containers in the magazine shall allow uniform
						air circulation so temperature uniformity can be maintained throughout the
						explosive materials.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 114 - Storage of Explosive Materials › Section 5255 - Second-Class Magazines. [Repealed]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1.
						  Amendment filed 10-17-75; effective thirtieth day thereafter (Register 75, No.
						  42).
2. Amendment of subsection (h) filed 9-18-80; effective
						  thirtieth day thereafter (Register 80, No. 38).
3. Repealer filed
						  7-11-2003; operative 8-10-2003 (Register 2003, No.
						  28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3 Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 114 - Storage of Explosive Materials › Section 5257 - Makeup or Primer House for Underground Blasting Operations

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) When 30 or more primers are required for
						a single round/shot, the primers shall be made up in advance in a makeup or
						primer house.
(b) When primers are
						made up and stored in quantities greater than for immediate need, they must be
						processed in a separate structure that complies with the Type 1 or Type 2
						magazine requirements except as follows:
(1)
						Electricity for lights will be permitted if the electric wiring is at least 5
						feet from explosive materials and complies with Class II, Division I, Hazardous
						Locations, Electrical Safety Orders.
(2) Not more than 110 pounds of explosive
						materials other than primers shall be stored in this makeup house.
(3) The number of made-up primers of each
						delay stored in this makeup house shall not exceed a normal 2-day
						supply.
(4) Heaters, if installed,
						shall comply with Section
						5254(a).
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 114 - Storage of Explosive Materials › Section 5258 - Storage of Explosive Materials Underground

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Explosive materials stored underground
						shall be so located that should they detonate or burn, the escape route for the
						employees will not be obstructed.
(b) Magazines shall be at least 200 feet from
						active underground workings, 50 feet from other magazines and at least 25 feet
						of solid ground separation from any haulageway used for any purpose other than
						the transportation of explosive materials. Any timbers within 25 feet of any
						magazine shall be made fire resistant.
(c) Explosive materials shall not be stored
						in an underground work area during tunneling and construction
						operations.
(d) In magazines where
						explosive materials may become damp, electricity may be installed for drying
						purposes. Electrical equipment used shall comply with Class II, Division I,
						Hazardous Locations, Electrical Safety Orders. Electrical wiring shall be kept
						at least 5 feet from explosive materials. No other electrical wiring shall be
						permitted within 5 feet of any magazine.
(e) Underground storage magazines shall be
						conspicuously marked with the words, "EXPLOSIVES," in
red
letters at least 4 inches high and with 5/8 -inch stroke on a
white
background.
(f) Combustible rubbish shall not be
						permitted within 100 feet of any underground magazine.
(g) Detonator storage magazines shall be of
						the same construction as explosives storage magazines and shall be separated by
						at least 50 feet from other magazines.
1.
						  Amendment of subsection (d) filed 10-17-75; effective thirtieth day thereafter
						  (Register 75, No. 42).
2. Amendment filed 7-16-76; effective
						  thirtieth day thereafter (Register 76, No. 29).
3. Amendment of
						  section heading and section and new NOTE filed 7-11-2003; operative 8-10-2003
						  (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 115 - Transportation of Explosive Materials › Section 5263 - Surface Transportation. [Renumbered]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. New
						  subsection (k) filed 3-28-75; effective thirtieth day thereafter (Register 75,
						  No. 13).
2. Amendment filed 10-17-75; effective thirtieth day
						  thereafter (Register 75, No. 42).
3. Amendment filed 3-7-80;
						  effective thirtieth day thereafter (Register 80, No. 10).
4.
						  Redesignation of former section
						  5263, subsections (a)-(l) as new
						  section 5262, subsections (d)-(p) filed
						  7-11-2003; operative 8-10-2003 (Register 2003, No.
						  28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3 Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 115 - Transportation of Explosive Materials › Section 5264 - Transportation of Explosive Materials-Underground-General

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Explosive materials shall not be left on
						the station level near the shaft collar, mine, or tunnel entrance, but shall be
						taken to the place of use or storage without delay.
(b) Detonators, capped fuses, and other
						explosive materials transported in any car, vehicle, or shaft conveyance shall
						be enclosed in substantially constructed containers equipped with tight-fitting
						covers. Such containers, including the covers, shall be made of wood, metal,
						fiber, or other equivalent material and shall be lined with nonconductive
						material.
NOTE: Except for primers, the original cases or DOT
						  shipping containers in which the explosive materials were packaged will be
						  accepted as being in compliance with this subsection.
(c) Except as provided in Section
						5264(c)(1),
						detonators, primers, or capped fuses, shall not be transported in the same
						container or compartment with other explosive materials.
(1) When carried in the same vehicle,
						detonators and capped fuses shall be in a separate compartment from the other
						explosive materials with at least 25 inches of air space between the
						compartments.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 115 - Transportation of Explosive Materials › Section 5265 - Transportation of Explosive Materials-Underground-Hoisting or Lowering

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) No employees
						except those specifically required and designated by the person in charge of
						the mine or tunnel, shall be permitted to ride in any shaft conveyance at the
						same time as explosive materials are being transported in such shaft.
(b) The hoist engineer shall be notified
						before explosive materials are transported in the shaft conveyance.
(c) Explosive materials shall be in a
						suitable conveyance while being hoisted from or lowered to any place
						underground.
(d) Hoisting of ore,
						muck or other materials in adjacent shaft compartments shall be stopped while
						explosive materials are being handled.
(e) Detonators and primers shall not be
						transported at the same time with other explosive materials in any shaft
						conveyance unless in a powder car.
1.
						  Amendment of section heading and section and new NOTE filed 7-11-2003;
						  operative 8-10-2003 (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 115 - Transportation of Explosive Materials › Section 5266 - Rail Transportation of Explosive Materials-Underground

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Only the train
						crew and powder crew shall be permitted to ride on a train transporting
						explosive materials.
(b) Explosive
						materials in quantities of 110 pounds or more when transported on a train,
						shall be in special powder cars. Such cars shall be constructed of metal and
						have closed compartments for the explosive materials. The compartments shall be
						lined with nonconductive material.
(c) Explosive materials shall not be
						transported on or in any locomotive. When transporting explosive materials by
						train, at least one empty car shall be kept between the locomotive and the car
						which contains explosive materials.
(d) Each side of the special powder car shall
						bear a sign with the word "EXPLOSIVES" in letters not less than 4 inches high
						with a 5/8 -inch stroke on a background of sharply contrasting color.
(e) Powder cars that are carrying explosive
						materials shall be pulled, not pushed, except when switching or traveling at
						the dead end of a line.
(f) The
						primers shall be placed in a primer compartment of the powder car in a suitable
						box with divisions for each separate delay. If capped fuses are used, they must
						be in a suitable container in the primer compartment. The primer and powder
						compartments shall be separated by at least 25 inches of air space.
1.
						  Amendment of section heading and section and new NOTE filed 7-11-2003;
						  operative 8-10-2003 (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 115 - Transportation of Explosive Materials › Section 5267 - Transportation of Explosive Materials-Underground- Special Trackless Vehicles

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Trackless
						vehicles used for the transportation of explosive materials shall be especially
						equipped for that purpose and shall be carefully maintained in compliance with
						the provisions of section
						5262.
(b) Truck-type vehicles used for the
						transportation of explosive materials shall be especially equipped with closed
						compartments for the explosive materials. The compartments shall be lined with
						nonconductive materials.
(c) Each
						side, front, and rear of every truck-type vehicle, when transporting explosive
						materials, shall bear a sign with the word "EXPLOSIVES" in letters not less
						than 4 inches high with a 5/8 -inch stroke on a background of sharply
						contrasting color.
(d) Truck-type
						vehicles when transporting explosive materials underground, shall be equipped
						with a flashing red light visible from the front and rear.
1.
						  Amendment of section heading and section and new NOTE filed 7-11-2003;
						  operative 8-10-2003 (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 115 - Transportation of Explosive Materials › Section 5268 - Transportation of Explosive Materials-Manual

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Explosive materials that are transported
						manually from one area to another shall be placed in suitable bags or other
						containers for such transportation.
(b) Detonators and primers shall be
						transported separately from other explosive materials.
1.
						  Amendment of section heading and section and new NOTE filed 7-11-2003;
						  operative 8-10-2003 (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 115 - Transportation of Explosive Materials › Section 5269 - Transportation of Explosive Materials-Air and Water

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Aircraft and water transportation of explosive
						  materials shall comply with standards of Federal Government or equivalent to
						  such standards.
1.
						  Amendment of section heading and section and new NOTE filed 7-11-2003;
						  operative 8-10-2003 (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 115 - Transportation of Explosive Materials › Section 5270 - Explosive Materials at Railway and Truck Terminals

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Every railway car and truck containing
						explosive materials which has reached its destination, or is stopped in transit
						so as no longer to be in interstate commerce, shall remain placarded in
						accordance with the regulations of the U.S. Department of
						Transportation.
1. New
						  section filed 10-17-75; effective thirtieth day thereafter (Register 75, No.
						  42).
2. Amendment of section heading, section NOTE filed 7-11-2003;
						  operative 8-10-2003 (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5277 - Tamping Poles or Devices

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Tamping poles or devices shall be made of wood or plastic materials
						manufactured for tamping explosives.
NOTE: There are many kinds of "plastics," most of which
						  cannot be used safely for tamping explosives. Some plastics are too soft to
						  withstand physical abuse, some are too hard, others are flammable or will
						  absorb nitroglycerin or generate hazardous accumulations of static
						  electricity.
(b) The end of
						the tamping pole shall be kept squared and shall be of such size that the pole
						will not bypass the cartridges in the hole.
(c) Wooden tamping poles shall have no metal
						parts, other than non-ferrous metal ferrules, for extending the length of the
						pole.
1.
						  Amendment of section heading and section and new NOTE filed 7-11-2003;
						  operative 8-10-2003 (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5278 - Loading of Explosive Materials-General

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Loading shall not commence until all
						drilling is completed and drill holes are cleaned or blown out, unless this
						procedure is impracticable under conditions encountered. When conditions
						justify simultaneous loading and drilling in the same area, such operations
						shall be separated as widely as practicable and in no case shall a drilling
						operation be closer than 50 feet to a hole being loaded. All drill holes shall
						be sufficiently large to freely admit the insertion of the explosive
						materials.
(b) At least 5 foot
						candles illumination shall be provided to safely perform loading operations.
						Only approved lights shall be used within 50 feet of the loading
						area.
(c) No vehicle traffic shall
						be permitted over loaded holes.
(d)
						Loading operations shall be carried on with the smallest practical number of
						persons and explosive materials loading equipment present and no one but the
						loading crew, inspection personnel, and authorized supervisory personnel shall
						be allowed within 50 feet of the loading area.
(1) At locations where 50 foot minimum
						distance cannot be maintained, an alternative plan shall be submitted to the
						Division for approval 30 days prior to anticipated start of work. The Division
						shall give written notice of receipt to the applicant within 7 days. Notice of
						approval/disapproval, shall be given within 15 days of receipt of the
						application. The Division may shorten the 30-day notification requirement where
						construction has commenced and unexpected site and/or emergency conditions
						requiring blasting occur.
(2) The
						Division shall approve the alternative plan if the following elements are
						satisfied:
(A) All blasting operations will be
						conducted using low sensitivity explosive materials.
(B) All blasting operations will be conducted
						using initiation systems which cannot be affected by stray current or radio
						frequency energy.
(C) A lightning
						and electric storm-detection system and written plan of action is provided to
						the Division. The plan shall include provisions for a detection system capable
						of warning the loading crew when a storm is 100 miles away. When a storm is
						detected 50 miles from the loading operation, the storm's movement is to be
						monitored. When a storm is detected at 25 miles from the loading operation,
						loading operations will be discontinued and all persons in the blast area
						withdrawn to a safe location.
(D)
						K-rails, barriers, traffic control systems or natural terrain shall be used to
						prevent entry by vehicular traffic into the loading
						site.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5279 - Loading and Blasting near or Under Power Lines

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) When electric initiated blasting under,
						or near overhead power lines, the leading wires shall be placed at right angles
						to such lines and shall be securely anchored to prevent the blasting circuit
						conductors from being thrown into the overhead lines.
(b) When blasting under, or near overhead
						power lines, all loaded holes shall be covered with a nonconductive blasting
						mat anchored to prevent the mat or other material from being blown into the
						overhead lines.
1.
						  Amendment of section heading and section and new NOTE filed 7-11-2003;
						  operative 8-10-2003 (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5280 - Pneumatic Loading of Explosive Materials for Blasting

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Construction of Air Loaders.
(1) Blasting agents shall not be loaded into
						any air loader constructed of copper, copper alloys, or zinc (including
						galvanized metals) unless the loader is constructed so that such incompatible
						materials do not come in contact with blasting agents.
(2) An explosive shall not be loaded into any
						air loader constructed wholly or in part of ferrous metals except that
						stainless steel may be used.
(3)
						The vessel that is pressurized on an air loader shall be designed, constructed,
						inspected, and stamped in compliance with the Unfired Pressure Vessel Safety
						Orders.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5291 - Firing of Explosive Materials (Blasting Operations)

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) The licensed blaster-in-charge shall fix
						the time of blasting.
(b) Blasts
						are not to be fired without a warning signal/procedure. The signals, which may
						be given by a siren, air horn, whistle or other device, shall be loud enough to
						be heard clearly in areas that could possibly be affected by the blast or
						flyrock from the blast. In addition, blasts are not to be fired until the
						licensed blaster-in-charge verifies the following:
(1) All surplus explosive materials are in a
						safe place,
(2) All security
						personnel at the blast area are in the proper location, and
(3) All personnel are either outside of the
						blast area or under sufficient cover.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5292 - Secondary Blasting

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						There shall be no activity of any kind that would create a hazard to explosive
						materials that have been placed or are being placed for secondary
						blasting.
(b) Where shots are to be
						fired in such close proximity that one shot may displace another, the firing
						shall be done by use of detonating cord or instantaneous electric blasting
						caps.
1.
						  Amendment of section and new NOTE filed 7-11-2003; operative 8-10-2003
						  (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5293 - Misfires

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) After each shot
						the blast area shall be examined for misfires. If any are found, or suspected
						to exist, they shall be reported to the person in charge. Steps shall be taken
						to eliminate all undetonated explosive materials.
(b) In case of a detonator misfire, the shot
						area shall be made safe under competent supervision by one of the following
						means after a 30-minute wait following electric or non-electric shock tube
						blasting, or a 60-minute wait following fuse cap blasting:
(1) Where practical a new primer shall be
						inserted into the hole and the hole reblasted, or
(2) Where the hole cannot be reblasted, the
						stemming and explosive shall be washed out with water, or
(3) Where blasting agents are used, try to
						remove the detonator and cap sensitive explosive materials.
(4)
(A)
						Where reblasting, washing, or removing explosive materials is unsafe or
						impracticable in a geophysical operation, the Division and surface owners shall
						be notified within 24 hours. The notice shall include the location, depth and
						the amount of the undetonated explosive material; and
(B) Following concurrence by the Division
						that retrieval of the explosive material in a misfired geophysical operation is
						impractical or unsafe, a substantial concrete cap capable of containing the
						explosion shall be placed above the explosive material at least 3 feet below
						the ground surface, or other permanent protection shall be
						installed.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5294 - Coyote Hole Blasting

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Electric lighting circuits shall not be permitted in a coyote hole while it is
						being loaded with explosives. Electric flashlights or cap lamps shall be used
						for illumination.
(b) In electrical
						blasting, the ends of leading wires shall be kept shorted until ready to blast.
						Circuits should be tested at least every 10 feet if stemming is placed in the
						cross-cuts, or before each explosives charge is placed.
(c) When detonating cord is used, a double
						line of cord with frequent cross ties shall be used throughout so that the
						detonating wave can reach each explosive charge from 2 independent
						sources.
(d) Coyote holes shall be
						backfilled tightly and for a sufficient length to prevent a blown-out
						shot.
(e) The area being loaded for
						blasting shall be plainly marked both in front and on top of the bank to be
						blasted with appropriate warning signs.
1. New
						  NOTE filed 7-11-2003; operative 8-10-2003 (Register 2003, No.
						  28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5295 - Use of Safety Fuse-General

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) No fuse except safety fuse shall be used
						for fuse cap blasting.
(b) The
						average burning rate per foot of safety fuse used shall be determined by
						burning not less than three, 3-foot lengths of such fuse in open air at or near
						the blast area. Safety fuse which varies more than 10 percent from the
						manufacturer's stated burning range shall not be used.
(c) Notice shall be displayed conspicuously
						at the work location, stating the burning rate of safety fuse used.
(d) Damaged safety fuse shall not be
						used.
(e) If the roll of safety
						fuse has not been fully used and is stored for future use after blasting has
						been completed, the average burning rate shall be re-determined prior to use as
						required by subsection (b).
1.
						  Amendment of section and new NOTE filed 7-11-2003; operative 8-10-2003
						  (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5296 - Safety Fuse Storage

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) In
						cold weather the safety fuse shall be warmed slightly before being uncoiled in
						order to avoid breaking or cracking.
(b) Safety fuse and igniter cord shall be
						stored in a place which is dry, cool, oil/grease free, and the relative
						humidity of the air is less than 80 percent.
(c) Safety fuse shall not be hung on nails or
						other projections that could cause a sharp bend to be formed in the
						fuse.
1.
						  Amendment of section and new NOTE filed 7-11-2003; operative 8-10-2003
						  (Register 2003, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5297 - Making Capped Fuses and Primers

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) In capping safety fuse, at least one inch
						shall be cut from the end of each coil of the fuse to be used to prevent damp
						fuse ends from getting into the cap.
(b) Blasting caps shall be kept in original
						or equivalent containers except as they are used for capping safety
						fuses.
(c) Only a ring-type cap
						crimper of standard design shall be used for attaching blasting caps to safety
						fuse.
(d) In capping fuse, the fuse
						ends shall be cut squarely with a sharp cutting blade. The capping operation
						shall be performed in a safe, dry location. The area shall be conspicuously
						posted with no smoking signs.
(e) A
						waterproof ring-type crimp or a compound especially prepared for waterproofing
						shall be used when necessary.
(f) A
						capped fuse shall not be attached to the primer cartridge by
						half-hitch.
(g) The safety fuse
						shall not be kinked when using the lacing method. The safety fuse shall lie in
						smooth curves as shown on the illustration. The cap shall be properly embedded
						along the axis of the cartridge.
Click
						  here to view image
1.
						  Amendment of section and new NOTE filed 7-11-2003; operative 8-10-2003
						  (Register 2003, No. 28).
2. Change without regulatory effect
						  providing more legible illustration filed 3-2-2009 pursuant to section
						  100, title 1, California Code of
						  Regulations (Register 2009, No. 10).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5298 - Non-Electric Blasting Systems

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Safety Fuse Initiation System.
(1) Safety fuses shall not be ignited before
						explosive charges are in place.
EXCEPTION: Avalanche blasting.
(2) When blasting with safety fuse,
						consideration shall be given to the following:
(A) the length and burning rate of the
						fuse;
(B) the condition of the
						escape route; and,
(C) the distance
						to a place of safety.
(3)
						Safety fuses shall not be used in any location, such as a shaft, raise or winz,
						where the lack of adequate nearby shelter and the distance of travel to a place
						of safety is such that there is a hazard to employees from flying rock and
						concussion.
(4) All safety fuses
						shall be cut sufficiently long to extend beyond the collar of the hole and in
						no case shall they be less than 3 feet in length.
NOTE: At the usual rate of burning, a 3-foot length of
						  safety fuse will fire a shot in about 2 minutes.
(5) Only single shots shall be fired when
						using 3-foot safety fuses. If more than one fuse is to be lighted at one time,
						such fuses shall comply with subsection (6) of this section.
(6) When lighting safety fuse, the fuses
						shall be so timed that no charge will detonate until at least 2 minutes after
						the last fuse in the blast area has been ignited.
(7) No one employee shall be permitted to
						ignite more than 12 safety fuses in succession. When 2 or more safety fuses in
						a group are lighted as one, by means of igniter cord or other fuse-lighting
						device, they may be considered as one fuse for the purpose of the
						subsection.
(8) If more than 3
						safety fuses are lighted at one time, no person shall be permitted to enter the
						blast area until after a period of time equal to 2 minutes for each foot in the
						length of the longest fuse in the round or 15 minutes, whichever is the longest
						time.
(9) At least two employees
						shall be present when lighting fuses.
EXCEPTION: Avalanche blasting.
(10) Fuses shall be lit with devices approved
						for such purposes.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5298.1 - Use of Detonating Cord

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Detonating cord shall be selected
						consistent with the type and physical condition of the bore hole and stemming
						and the type of explosives used.
(b) Detonating cord shall be handled and used
						as an explosive.
(c) The line of
						detonating cord extending out of a bore hole or from a charge shall be cut from
						the supply spool before loading the remainder of the bore hole or placing
						additional charges.
(d) Detonating
						cord shall be handled and used with care to avoid damaging or severing the cord
						during and after loading, stemming and hooking up.
(e) Detonating cord connections shall be made
						in accordance with the manufacturer's recommendations. Knot-type or other
						cord-to-cord connections shall be made only with detonating cord in which the
						explosive core is dry.
(f) All
						detonating cord trunklines and branchlines shall be free of loops, sharp kinks,
						or angles that direct the cord back toward the oncoming line of
						detonation.
(g) All detonating cord
						connections shall be inspected before firing the blast.
(h) When detonating cord millisecond-delay
						connectors or short-interval-delay electric blasting caps are used with
						detonating cord, the practice shall conform strictly to the manufacturer's
						recommendations.
(i) When
						connecting a blasting cap or an electric blasting cap to detonating cord, the
						cap shall be taped or otherwise attached securely along the side or the end of
						the detonating cord, with the end of the cap containing the explosive charge
						pointed in the direction in which the detonation is to proceed.
(j) Detonators for firing the trunkline shall
						not be brought to the loading area nor attached to the detonating cord until
						everything else is in readiness for the blast.
1. New
						  section filed 7-11-2003; operative 8-10-2003 (Register 2003, No.
						  28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5300 - Firing Switches

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						The firing switch shall conform to the following minimum standards:
(1) It shall be an externally operable
						switch, enclosed in a tight case provided with a lock.
(2) It shall be a double pole, double throw
						switch with the handle arranged to be locked in the "off" position
						only.
(3) It shall be provided with
						a bar for short-circuiting, but not grounding the leading wires when the switch
						is in the "off" position.
(4)
						Switches shall have adequate rating for the maximum voltage and current to be
						used.
(5) The service entrance
						switch fuse or circuit breaker rating shall be fused not exceeding 33 percent
						of the maximum calculated current requirement and will blow at 15 times the
						rated capacity in 1/20 of a second.
(6) The switch shall be mounted so that the
						handle is down when the switch is in the "off" position. The leading wires
						shall be attached to the blade terminals and the power line wires to the
						up-throw terminals.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5301 - Auxiliary Switches

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						One or more auxiliary switches shall be installed at the beginning of each
						branch circuit of the permanent leading wires.
(b) Such switches shall be as described in
						Section 5300 except that they need not be
						fused.
1. New
						  NOTE filed 7-11-2003; operative 8-10-2003 (Register 2003, No.
						  28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 116 - Handling and Use of Explosive Materials in Blasting Operations › Section 5302 - Permanent and Temporary Leading Wires

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) All leading wires shall be type "S" cable
						or equivalent, or shall consist of 2 suitable insulated solid aluminum or solid
						copper wires.
(b) Permanent leading
						wires shall be installed in conduit or shall be strung on insulators and kept
						at least 5 inches apart.
(c) The
						conductor used to close the air gap shall be type "S" cable or
						equivalent.
(d) All leading wires
						shall have the capacity to carry the required firing current to the detonators.
						In no case shall a capacity of less than copper wire No. 14 American Wire Gauge
						or aluminum wire No. 12 American Wire Gauge be used, except No. 18 American
						Wire Gauge may be used for one electric blasting cap.
Click
						  here to view image
Recommended power firing systems for series and
						  parallel series firing with no circuit interrupter.
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						  here to view image
Recommended power firing systems for series and
						  parallel series firing using a circuit interrupter.
(e) All splices shall be well made and shall
						be so joined as to be electrical and mechanically secure. Splices shall be
						taped or otherwise effectively insulated.
1.
						  Amendment of subsection (d) and new NOTE filed 7-11-2003; operative 8-10-2003
						  (Register 2003, No. 28).
2. Change without regulatory effect
						  providing more legible illustrations filed 3-2-2009 pursuant to section
						  100, title 1, California Code of
						  Regulations (Register 2009, No. 10).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.