49 CFR 234.241 : Transportation (§ 1.1 To Parts 1581-1699) — (§ 200.1 To Parts 273-299) — Other Regulations Relating To Transportation (Continued) (§ 200.1 To Parts 273-299) — Federal Railroad Administration, Department Of Transportation (§ 200.1 To Parts 273-299) — Grade Crossing Safety (§ 234.1 To Appendix B To Part 234) — Maintenance, Inspection, And Testing (§ 234.201 To § 234.275) — Maintenance Standards (§ 234.201 To § 234.245) — Protection of insulated wire; splice in underground wire.

4 Aug 2016

Insulated wire shall be protected from mechanical injury. The insulation shall not be punctured for test purposes. A splice in underground wire shall have insulation resistance at least equal to that of the wire spliced.

49 CFR 234.241