[Code of Federal Regulations]
[Title 29, Volume 8]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 29CFR1926.907]

[Page 473]
 
                             TITLE 29--LABOR
 
CHAPTER XVII--OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT 
                                OF LABOR
 
PART 1926_SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION--Table of 
Contents
 
              Subpart U_Blasting and the Use of Explosives
 
Sec.  1926.907  Use of safety fuse.

    (a) Safety fuse shall only be used where sources of extraneous 
electricity make the use of electric blasting caps dangerous. The use of 
a fuse that has been hammered or injured in any way shall be forbidden.
    (b) The hanging of a fuse on nails or other projections which will 
cause a sharp bend to be formed in the fuse is prohibited.
    (c) Before capping safety fuse, a short length shall be cut from the 
end of the supply reel so as to assure a fresh cut end in each blasting 
cap.
    (d) Only a cap crimper of approved design shall be used for 
attaching blasting caps to safety fuse. Crimpers shall be kept in good 
repair and accessible for use.
    (e) No unused cap or short capped fuse shall be placed in any hole 
to be blasted; such unused detonators shall be removed from the working 
place and destroyed.
    (f) No fuse shall be capped, or primers made up, in any magazine or 
near any possible source of ignition.
    (g) No one shall be permitted to carry detonators or primers of any 
kind on his person.
    (h) The minimum length of safety fuse to be used in blasting shall 
be as required by State law, but shall not be less than 30 inches.
    (i) At least two men shall be present when multiple cap and fuse 
blasting is done by hand lighting methods.
    (j) Not more than 12 fuses shall be lighted by each blaster when 
hand lighting devices are used. However, when two or more safety fuses 
in a group are lighted as one by means of igniter cord, or other similar 
fuse-lighting devices, they may be considered as one fuse.
    (k) The so-called ``drop fuse'' method of dropping or pushing a 
primer or any explosive with a lighted fuse attached is forbidden.
    (l) Cap and fuse shall not be used for firing mudcap charges unless 
charges are separated sufficiently to prevent one charge from dislodging 
other shots in the blast.
    (m) When blasting with safety fuses, consideration shall be given to 
the length and burning rate of the fuse. Sufficient time, with a margin 
of safety, shall always be provided for the blaster to reach a place of 
safety.