1. Regulations
  2. title 30
  3. chapter I
  4. part 57
  5. subpart E
  6. subjgrp 166
  7. § 57.6603

View all text of Subjgrp 166 [§ 57.6600 - § 57.6605]

§ 57.6603 - Air gap.

At least a 15-foot air gap shall be provided between the blasting circuit and the electric power source.

AUTHORITY: 30 U.S.C. 811.

SOURCE: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.

CITE AS: 30 CFR 57.6603