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Inspection and Test Plan for the Dipole Cold Masses

Step

Nr

Component name

P.B.S.Number

Test Description

Test Specification

1

 

Insulation of Copper wedges

1.1.1.1

Electrical Test

CERN IT-2708/LHC/LHC Rev 1.1

Annex B5: Insulation of copper wedges- Electrical checks

2

Supraconducting cable

1.1.1.1

Electrical Test during the cable insulation

CERN IT-2708/LHC/LHC Rev 1.1

Annex B7: Electrical Test during cable insulation- polymide splicing and repair.

3

Inner/Outer Layers

1.1.1.1

Electrical -Test after curing -

Measurement of DC resistance

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

4

Inner/Outer Layers

1.1.1.1

Electrical -Test after curing – Inductance and Q-factor

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

5

Inner/Outer Layers

1.1.1.1

Electrical -Test after curing – Pulse discharge

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

6

Inner/Outer Layers

1.1.1.1

Electrical -Test after curing – Insulation Test of the copper wedges

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

7

Inner Layer

1.1.1.1.1.1

Inner layer measuring (sizes)

CERN IT-2708/LHC/LHC Rev 1.1

Annex B9: Mechanical tests and tolerances of the layers, poles and collared coils.

8

Outer Layer

1.1.1.1.1.2

Outer layer measuring (sizes)

CERN IT-2708/LHC/LHC Rev 1.1

Annex B9: Mechanical tests and tolerances of the layers, poles and collared coils.

9

Inner/Outer Layers

1.1.1.1

Electrical test of layers under press

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

10

Assembled Poles

1.1.1.1

Electrical tests after layers assembly – Insulation Resistance before splice soldering

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

11

Assembled Poles

1.1.1.1

Electrical test of layers assembly - DC resistance

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

12

Assembled Poles

1.1.1.1

Electrical test after layers assembly – Resistance [DC] of the Splice

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

13

Assembled Poles

1.1.1.1

Electrical test after layers assembly - Pulse discharge

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

14

Assembled Poles

1.1.1.1

Electrical - Test of poles under press.

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

14a

Assembled Poles

1.1.1.1

Electrical test after layers assembly – Inductance and Q factor

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

15

Assembled Poles

1.1.1.1

Electrical - Test during collaring

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

16

Collared Coils

1.1.1.1.1

Electrical - Test after collaring - DC resistance

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

17

Collared Coils

1.1.1.1.1

Electrical - Test after collaring - 

H.V. leakage current test

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

18

Collared Coils

1.1.1.1.1

Electrical - Test after collaring - Pulse discharge

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

19

Collared Coils

1.1.1.1.1

Electrical - Test after collaring -  Test of voltage taps if present

CERN IT-2708/LHC/LHC Rev 1.1

Annex B10: Electrical Tests of the layers, poles, and collared coils

20

Collared Coils

1.1.1.1.1

Cold test (to be agreed between CERN and Contractors.

CERN IT-2708/LHC/LHC Rev 1.1

Section 6.4.4 : Cold Test

21

Collared Coils

1.1.1.1.1

Warm magnetic measurement

CERN IT-2708/LHC/LHC Rev 1.1

Annex B18

22

Collared Coils

1.1.1.1.1

Measurement of sizes of the collared coil

CERN IT-2708/LHC/LHC Rev 1.1

Annex B9: Mechanical tests and tolerances of the layers, poles and collared coils.

23

Active Part / Cold Mass Assembly

1.1.1.1

Electrical - Test before and after  the Cold Mass Assembly

CERN IT-2708/LHC/LHC Rev 1.1

Annex B22

24

Active Part Assembly

1.1.1.1

Yoke Gap check

CERN IT-2708/LHC/LHC Rev 1.1

Annex B27

25

Active Part Assembly

1.1.1.1

Geometry -Vertical straightness

CERN IT-2708/LHC/LHC Rev 1.1

Annex B27

26

Active Part Assembly

1.1.1.1

Geometry -  Bending radius

CERN IT-2708/LHC/LHC Rev 1.1

Annex B27

27

Active Part Assembly

1.1.1.1

Geometry -  Sagitta

CERN IT-2708/LHC/LHC Rev 1.1

Annex B27

28

Active Part Assembly

1.1.1.1

Geometry - Twist

CERN IT-2708/LHC/LHC Rev 1.1

Annex B27

29

Active Part Assembly

1.1.1.5

Pre-stress in the shrinking cylinder

CERN IT-2708/LHC/LHC Rev 1.1

Annex B27

30

Cold Mass Assembly

1.1.1.1

Geometry - Correctors magnets alignment

CERN IT-2708/LHC/LHC Rev 1.1

Annex B28

31

Cold Mass Assembly

1.1.1.1

Electrical - Test before and after  the Cold Mass

CERN IT-2708/LHC/LHC Rev 1.1

Annex B22

32

Cold Mass Assembly

1.1.1.1

Geometry - End covers alignement

CERN IT-2708/LHC/LHC Rev 1.1

Annex B29

33

Cold Mass Assembly

1.1.1.1

Cold Bore tube alignment and final alignment of the Cold Mass Geometry (with data storage of vertical straightness, Bending radius, Sagitta,Twist and C.M. supports position.

CERN IT-2708/LHC/LHC Rev 1.1

Annex B27

34

Cold Mass Assembly

1.1.1.1

Final warm magnetic measurements

CERN IT-2708/LHC/LHC Rev 1.1

Annex B18

35

Cold Mass Assembly

1.1.1.1

Final electrical Test after the cold Mass assembly

CERN IT-2708/LHC/LHC Rev 1.1

Annex B22

 

36

Cold Mass Assembly

1.1.1.1

Leak Test

CERN IT-2708/LHC/LHC Rev 1.1

Annex B30

37

Cold Mass Assembly

1.1.1.1

Welding Test

Safety Test CERN IT-2708/LHC/LHC Rev 1.1  Annex B31

38

Cold Mass Assembly

1.1.1.1

Pressure Test

Safety Test CERN IT-2708/LHC/LHC Rev 1.1  Annex B31
   Content- Vittorio Remondino - 17-01-2003