49 CFR § 236.109 Rules, Standards, and Instructions Governing the Installation, Inspection, Maintenance, and Repair of Signal and Train Control Systems, Devices, and Appliances

§ 236.109 Time releases, timing relays and timing devices.

Current through Sep 25, 2026 · Read all of Part 236

Time releases, timing relays and timing devices shall be tested at least once every twelve months. The timing shall be maintained at not less than 90 percent of the predetermined time interval, which shall be shown on the plans or marked on the time release, timing relay, or timing device.

[49 FR 3384, Jan. 26, 1984]

← § 236.108 Insulation resistance tests, wires in trunking and cables.§ 236.110 Results of tests. →