Or. Admin. Code § 740-105-0110

Current through Register Vol. 63, No. 12, December 1, 2024

Section 740-105-0110 - Joint Design

(1) Complete information recording location, type, size, and extent of all welds shall be shown on the approved welding procedures and drawings upon which the LTR repairs are based.

(2) All reach welds shall be full penetration groove welds made from one side only and completely fused to a backing strip.

(3) The effective area of the weld is the effective length multiplied by the effective throat.

(4) The effective length of the groove weld is the length throughout which the correctly proportioned weld cross section exists.

(5) The effective throat is the minimal distance from the root of the weld to its face, less any reinforcement.

(6) Intermittent groove welds are prohibited.

(7) Outside or external surface of all groove welds shall be ground flush with the reach base metal.

(8) In order to minimize stress concentration and provide more length of weld to carry the stresses, a splice angle of from 45 to 60 degrees from the centerline of the reach tube is required.

Or. Admin. Code § 740-105-0110

PUC 16-1993, f. & cert. ef. 8-19-93 (Order No. 93-1157); MCT 3-1996, f. & cert. ef. 3-14-96; Renumbered from 860-066-0101

Stat. Auth.: ORS 183.335, ORS 823.011, ORS 825.210 & ORS 825.252

Stats. Implemented: ORS 825.210 & ORS 825.252