[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR28.31]

[Page 150-151]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 28--FUSES FOR USE WITH DIRECT CURRENT IN PROVIDING SHORT-CIRCUIT PROTECTION FOR TRAILING CABLES IN COAL MINES--Table of Contents
 
                       Subpart D--Quality Control
 
Sec. 28.31  Quality control plans; contents.

    (a) Each quality control plan shall contain provisions for the 
management of quality, including: (1) Requirements for the production of 
quality data and the use of quality control records; (2) control of 
engineering drawings, documentations, and changes; (3) control and 
calibration of measuring and test equipment; (4) control of purchased 
material to include incoming inspection; (5) lot identification, control 
of processes, manufacturing, fabrication, and assembly work conducted in 
the applicant's plant; (6) audit or final inspection of the completed 
product; and, (7) the organizational structure necessary to carry out 
these provisions.
    (b) The sampling plan shall include inspection tests and sampling 
procedures developed in accordance with Military Specification MIL-F-
15160D, ``Fuses; Instrument, Power, and Telephone'' (which is hereby 
incorporated by reference and made a part hereof), Group A tests and 
Group B tests, except that the continuity and/or resistance 
characteristics of each fuse shall be tested. Military Specification 
MIL-F-15160D is available for examination at Approval and Certification 
Center, RR 1, Box 251, Industrial Park Road, Triadelphia, WV 26059. 
Copies of the document may be purchased from the Superintendent of 
Documents, U.S. Government Printing Office, Washington, DC20402.
    (c) The sampling procedure shall include a list of the 
characteristics to be tested by the applicant or his agent and shall 
include but not be limited to: (1) Continuity and/or resistance 
determination for each fuse; (2) carry current capability (not less than 
110 percent of the rated current); and, (3)

[[Page 151]]

overload current interruption capability (not less than 135 percent of 
the rated current).
    (d) The quality control inspection test method to be used by the 
applicant or his agent for each characteristic required to be tested 
shall be described in detail.

[37 FR 7562, Apr. 15, 1972, as amended at 43 FR 12316, Mar. 24, 1978; 60 
FR 35694, July 11, 1995]