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Subchapter 7. General Industry Safety Orders
Group 18. Explosives and Pyrotechnics
Article 116. Handling and Use of Explosives--Blasting Operations

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§5297. Making Capped Fuses and Primers.

(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.

Recommended Methods of Attaching Capped Fuse to Primer Cartridge

    Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.  

1. Amendment of section and newNote 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).

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