Document 6BvnXpM2DyVeQaBdKYN1b3mZE

LHC 11 Procedure 2TK/K-30 Commissioning LHC II Scope Commission for putting back in service Hazards If 2K-20 is to remain under pressure the oil drains on 2K-30 must be blinded before 2K-30 will depressure. Safety Equipment Standard Tools Standard Past Incident History Check for oil in exchangers drums and case Bleed liquid from low points while there is still plenty of pressure on the system Operating Parameters The variables for operating limits, consei/iiences and responses are listed in the "Norma! Operations Procedure The file is located on the THt' II operating discipline computer under the critical procedures directory. 2TK-30 Commissioning Procedure (6 hours) _______Once all work is completed puli and clear all tags _______Warm-up all steam lines and also the turbine case. D0 A 031039 CONFIDENT! W- O '[)ATA'I'KOOOC2 2ik.Vkuin.d.iv REVISED: DnW 11)1.\ 11 \\ I' Uil I ni 2 IA It.`>ii r mi i'\i LHC II Pro c e d n r e Inspect oil system and then stall it up, checking for leaks and proper pressures, providing 2TK-K-20 is ready. Put the surface condenser in service, including the hog, open external seal steam to 2TK-30, put gland condenser in service, and check hoi well pumps Also put inner/after coolers in service. ______ Once a vacuum is established begin slow rolling 2TK-30 at 500 rpm for two to four hours or until it is determined there is no bow in the shaft. Note: When bringing 2TK-30 on-line 2TP-25 should be on line with 2P-25B on auto S/B, 2K-30 Commissioning Procedure (12-24 hours) _______Once all work is complete on 2K-30 the red lags pertaining to 2K-30 (54-79) can now be pulled. Pad and depad with N2 three times to 100 lb Double check all case drains for liquid. Also make sure all valves in the system are open during pad and depad with N2 and C2H4 into 2D-3 I and pad up the whole system making sure all valves are open incorporating all equipment and lines. Pad and depad three times to 100 lb taking vents at the extremities to insure a sweeping motion. ______ After the last pad with gas double check all case drains for liquid and also run an inert sample. N2 should be less than 2%. Then set up all valves in the system to their proper position including opening the false load valves. Remove all tubing and plug all valves. ______ Next establish a 50% level in both 2D-31 and 2D-32 using the C2H4 from LHC III. If LHC III is down we will have to run a make-up line from distribution to 2E-23 1. Once liquid levels are established 30 can be brought up if 20 is running 0:'DATA^Kon<K.'2 2lk Hhii (l., REVISED -t-U-94 IX AV COM 11)1 M l \l l'.Uii:2 0l 2 OO A 031040 CONFIDENTIAL (IS If. % S Dll l`M