3. AL-1311-8004A_ATS-STA Lambertson Magnet Specification.pdf

ATS-STA Lambertson Magnet Engineering Specification Document

Mariusz Juchno Release Date: Sep 9 2024 11:01:08 AM PDT

Document Number: AL-1311-8004 Revision: A

Document Status: Released Document Type: SPECIFICATION

Category Code: AL7410

ALS-U - ACCUMULATOR TO STORAGE RING TRANSFER LINE

MAGNETS - GENERAL

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

R

Downloaded by: Windchill Watermarker

AL-1311-8004 Rev. A Doc. Status: Released Page 2 of 45

Advanced Light Source Upgrade Project Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

TABLE OF CONTENTS

1 Revision History

2 Approvals

3 Abbreviations and Acronyms

4 Introduction

5 Document Definitions

5.1 Specification Definition

5.2 Identification Number

5.3 Traceability

6 Lambertson Magnet Specification

6.1 Essential Geometric Physics Specifications

6.2 Vacuum Chamber Specification

6.3 Magnetic Field Requirements

7 Reference Design Parameters

7.1 Magnet and Coil Electrical Parameters

7.2 Hydraulic Circuit Parameters

7.3 Magnet Electrical Interlock Protection

8 Supports and Alignment

9 ALS-U Transfer Line Dipole Requirements adopted to Lambertson Magnet

9.1 General Requirements

9.2 Requirements of Magnet Coils

9.3 Requirements on Magnet Bus Leads

9.4 Electrical Safety Requirements

9.5 Enclosure Requirements

9.6 LCW Cooling Requirements

9.7 Assembly Level Requirements

9.8 Magnet Yoke, Pole, and Magnet Support Requirements

9.9 Alignment Fiducial Features

9.10 Hardware Requirements

9.11 Lifting, Handling, and Shipping Requirements

9.12 Documentation and Procedures

9.13 Labels, Marking, Serialization, and Painting Requirements

10 Applicable Documents

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 3 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

11 References

Lorentz force in Bend and Lambertson magnets

Beam deflection and magnetic field direction in ALS-U Lambertson magnets

Electric current and magnetic field direction

1 REVISION HISTORY

Rev. CM Number Description of Change A Baseline

2 APPROVALS

List of approvers can be found referenced in the Windchill product lifecycle management system.

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 4 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

3 ABBREVIATIONS AND ACRONYMS

A Analysis ABRV Abbreviation ALS Advanced Light Source ALS-U Advanced Light Source Upgrade AR Accumulator Ring ATS Accumulator to Storage Transfer Line BTA Booster to Accumulator Transfer Line DEMO Demonstration EPICS Experimental Physics and Industrial Control System FLEX Flexibility ID Identification INSP Inspection LBNL Lawrence Berkeley National Laboratory METH Method MPS Machine Protection System N/A Not Applicable NUM Number SEL Accumulator Ring Lambertson Extraction Septum SIL Accumulator Ring Lambertson Injection Septum SB Stored Beam SR Storage Ring STA Storage to Accumulator Transfer Line TB Transferred Beam TEST Test VERIF Verification

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 5 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

4 INTRODUCTION

The ALS-U Accelerator System Group is responsible for providing the accelerator magnets to build the Accumulator to Storage Transfer Line (ATS) and the Storage to Accumulator Transfer Line (STA). These two and mirror-symmetric transfer lines will meet in the straight section of the Storage Ring (SR), at the fast swap-out kicker, where the fresh bunches will replace the spent ones. The injection and the extraction points in the Accumulator Ring (AR) will be located in straight section ±30° away from the swap-out kicker.

Figure 4.1 Overview of the ALS-U transfer line region with the DC Lambertson septum magnets for ATS and STA transfer lines marked with green rectangles.

The injection and extraction of swapped-out beams in the AR straights will be performed using three magnets placed symmetrically for each transfer line:

Fast kicker deflecting the beam vertically by 4 mrad from/into the AR stable orbit;

Thin eddy-current septum magnet deflecting the beam vertically by 55.6 mrad;

DC Lambertson septum magnet deflecting the beam horizontally by 176.2 mrad.

Figure 4.2 Top-down view of the AR02S:SIL and AR12S:SEL Lambertson magnets.

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 6 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Figure 4.3 Components of the AR02S:SIL Lambertson.

Table 4-1 Lambertson magnets naming, location and allocated Power Supply racks Description Name Location Rack

STA Septum Injection Lambertson AR02S:SIL Accumulator Ring Sector 2 Straight S0241

ATS Septum Extraction Lambertson AR12S:SEL Accumulator Ring Sector 12 Straight S1241

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 7 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

5 DOCUMENT DEFINITIONS

5.1 Specification Definition

Shall, will, may, and should are used to define every specification listed in this document.

The definitions of these terms are as follows

May – is used to indicate a desire or goal of a specification. This can also be interpreted ‘as nice to have’ and are not contractually binding.

Shall –is a specification that is contractually binding and must be implemented.

Should – is used to indicate a desire or goal of a specification. This can also be interpreted ‘as nice to have’ and are not contractually binding.

Will – is used to inform intent or declaration of purpose. This is not a specification.

Example, the author will use the word ‘shall’ to indicate that a specification is contractually binding and must be implemented.

5.2 Identification Number

Each specification stated in this document shall have a unique identification (ID) number (NUM). Once an ID NUM has been assigned to a specific specification, the ID NUM cannot be changed or reassigned.

The ID NUM formant is as follows SYY-XX-QQQQQQ, where S indicates that this is a specification, YY identifies the Major Systems Level within the ALS-U project, XX is a unique identifier within the Major Systems Level, and QQQQQQ is a unique six digit number.

The unique ID numbers are assigned by the ALS-U Lead System Engineer.

5.3 Traceability

Each specification stated in this document shall have a traceability to determine the relationship between different requirements and specifications not only within this document, but also for the entire project.

6 LAMBERTSON MAGNET SPECIFICATION

6.1 Essential Geometric Physics Specifications

The essential physics specifications were developed to define the magnetics requirements for the ring. These specifications integrate physics design requirements, lattice structure, O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 8 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

and gross engineering requirements to develop a baseline model to develop the magnetics and engineering requirements.

Table 6-1 Essential Geometric Physics Specifications for DC Lambertson Magnet

ID NUM

(S09-08-)

RQMT

DEF

Specification Description

Value Unit Traceability/ Assumption

003100 Shall Beam Deflection Plane Horizontal - Beam Physics

003102 Shall Number of AR02S:SIL

Magnets 1 - Beam Physics

003104 Shall Number of AR12S:SEL

Magnets 1 - Beam Physics

003106 Shall Effective Magnetic

Length along the beam trajectory

1.000 +/- 0.0005 m Beam Physics

003108 Shall Magnet Insertion Length

(Yoke)

+0.0005 -0.002 m CAD model

003110 Should Length of the yoke base-plate 0.987 m EM numerical analysis

003116 Shall Bend Angle -10.098 (-0.17624)

Deg (Rad)

Beam Physics

003118 Shall Effective Bend Radius 5.674 m Reference

Design

003120 Should Simple Sagitta 22.016 mm Reference

Design

003122 Shall Entry/Exit Pole-Face

Angle wrt. Beam Trajectory

0/0 Deg Beam Physics

003124 Shall Magnet Geometry Straight - Reference

Design 003126 Shall Pole Geometry Sector Bend - Beam Physics

003128 Shall Min. Local Horizontal

Stay-clear 2∙(6σx+1 mm) 7.6 mm Beam Physics

003130 Shall Min. Local Vertical Stay-clear 2∙(6σy+1 mm) 3.4 mm Beam Physics

003132 Shall Magnet Gap on Beam

Reference Center

12.00 mm

Reference Design

003134 Should Inner Diameter of the Hole for the AR Stored

Beam Chamber

35.00 mm

Reference Design

003136 Shall Yoke Material

Carbon steel 1006 with magnetic anneal

Reference Design

003138 Should Yoke Construction Assembled from solid yoke parts

Reference

Design

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 9 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

ID NUM

(S09-08-)

RQMT

DEF

Specification Description

Value Unit Traceability/ Assumption

003140 Shall Magnet Assembly Mass

+5/-20 kg CAD model

6.2 Vacuum Chamber Specification

Vacuum chamber shall be fabricated and tested according to UHV Chamber and Component Production Requirements Document AL-1220-7841.

Table 6-2 Specifications for DC Lambertson Magnet Vacuum Chamber

ID NUM

(S09-08-)

RQMT

DEF

Specification Description Value Unit

Traceability/ Assumption

003200 Shall Shape of the Transferred Beam

Vacuum Chamber Racetrack - Vacuum Group

003202 Shall Shape of the Stored Beam

Vacuum Chamber Round - AR Straight

Section Vacuum Chamber Design

003204 Shall Material of the Transferred

Beam Vacuum Chamber

Non-magnetic Stainless Steel

316L or 316L(N)

Standard Practice

003206 Shall Material of the Stored Beam

Vacuum Chamber

Non-magnetic Stainless Steel

316L or 316L(N)

Standard Practice

003208 Shall

Inner Dimensions of the Transferred Beam Vacuum Chamber (magnet gap and

DN100 flange)

Racetrack Height ≥ 7.0 Width ≥ 22.0 mm Vacuum Group

003209 Shall Inner Diameter of the

Transferred Beam Vacuum Chamber (DN25 flange)

13.0 mm Vacuum Group

003210 Shall Inner Diameter of the Stored

Beam Vacuum Chamber 28.45 mm AR Straight

Section Vacuum Chamber Design

003211 Shall

Minimum clearance between vacuum chamber (or external magnetic shield) and yoke components (magnetic gap or top yoke bore)

1 mm

003212 Will Synchrotron Radiation Heat on SB Tube, max.

1.27 (ATS)

5.25 (STA)

W Heat-load Analysis

003214 Shall Achievable Ultimate Vacuum

Pressure <5.00e-10 Torr Vacuum Group

003216 Shall Magnetic permeability for vacuum chamber base material 1.01 - Vacuum Group

003217 Shall Magnetic permeability for welds or braze joints 1.04 - Vacuum Group

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 10 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

6.3 Magnetic Field Requirements

Table 6-3 Specifications of the Magnetic Field in the DC Lambertson Magnet Gap

ID NUM

(S09-08-)

RQMT

DEF

Specification Description

Value Unit Traceability/ Assumption

003300 Should Nominal By Dipole Field 1.1758 T Reference

Design

003302 Shall Nominal By Dipole Integral 1.1758 T∙m Reference

Design

003304 Shall Horizontal Good Field

Region Width 29.6 mm Reference

Design

003306 Shall Vertical Good Field Region

Height 3.4 mm Reference

Design

003308 Shall Local Uniformity of the

Field within the Good Field Region

1∙10-4 - Beam Physics

003310 Shall

Maximum Bx Dipole Integral along the Beam

Trajectory wrt. Nominal By

Dipole Integral

(176) ppm (G∙cm)

Beam Physics

003312 Shall Magnetic Field (Power

Supply) Stability (RMS) ≤20 ppm Beam Physics

Figure 6.1 Good field region of the Lambertson magnet defined along the length of the straight pole of the magnet.

Table 6-4 Specifications of the Magnetic Field in AR Stored Beam Chamber of the DC Lambertson Magnet

ID NUM

(S09-08-)

RQMT

DEF

Specification Description

Value Unit Traceability/ Assumption

003320 Shall

Field Normalization Radius for Magnetic

Measurements on the Stored Beam Trajectory

10 mm Compatibility with

AR Dipole Reference Radius

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 11 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

ID NUM

(S09-08-)

RQMT

DEF

Specification Description

Value Unit Traceability/ Assumption

003322 Shall First Field Integral (x, y) 50 + 50 G∙cm Based on

Undulator RQMT R05-10-002700

003324 Shall Integrated Normal and

Skew Quadrupole 50 G Based on

Undulator RQMT R05-10-002710

003326 Shall Integrated Normal and

Skew Sextupole 50 G/cm Based on

Undulator RQMT R05-10-002715

003328 Shall Integrated Normal and

Skew Octupole 100 G/cm2

Based on Undulator RQMT R05-10-002720

Table 6-5 Textual description of the magnet features improving the magnetic field quality

ID NUM

(S09-08-) Specification Traceability/ Assumption

003340

Flat magnetic shims (0.5 mm high, 5 mm wide) shall be machined on both sides of the flat magnet pole in order to improve the field uniformity due to lack to top/bottom symmetry.

Deliverable: mechanical tolerance analysis

EM numerical analysis

003342

The entry and the exit pole-face of the magnet shall by machined at an angle so that the vector normal to the pole-face is parallel to the entry and exit beam trajectory. The pole-face angle is introduced in order to minimize the horizontal (Bx).

EM numerical analysis

003344 The entry and the exit pole-edge should have 5x5 mm chamfer machined in order to minimize the horizontal (Bx).

EM numerical analysis

003346 The yoke roof-plate shall extend beyond the base-plate and overhang the coil-ends in order to shield the AR stored beam from the fringe field of the magnet.

EM numerical analysis

003348

The AR stored beam chamber shall be made of a non-magnetic Stainless Steel. An additional layer of ferromagnetic shielding material (e.g. μ-Metal wrap or low carbon steel tube) should be used if it is necessary to meet the magnetic field requirement.

EM numerical analysis

003350 Two 5 mm ferromagnetic plates separated by 5 mm gap shall be installed on flux-return boss-feature on both side of the magnet in order to shield the AR stored beam from the fringe field of the magnet.

EM numerical analysis

003352 Shielding plates shall be installed with a 12 mm gap to the extended yoke roof-plate for installation of the racetrack vacuum chamber.

EM numerical analysis

003354 External faces of the shielding plate assemblies shall be co-planar with external faces of the extended yoke roof-plate.

EM numerical analysis

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 12 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

7 REFERENCE DESIGN PARAMETERS

7.1 Magnet and Coil Electrical Parameters

Table 7-1 Magnet and Coil Winding Parameters

ID NUM

(S09-08-)

RQMT

DEF

Specification Description Value Unit Traceability/

Assumption

003400 Should Nominal Operating Current 241.1 A Reference

Design

003402 Should Nominal Operating Voltage 9.34 V Reference

Design

003404 Should Nominal Operating Power 2252 W Reference

Design

003406 Should Resistance 38.73± 1.0 mΩ Reference Design

003408 Should Maximum Operating Current 253.2 A Reference

Design

003410 Should Maximum Operating Voltage 9.81 V Reference

Design

003412 Should Magnet Inductance 32.1 mH Reference Design

003414 Should Maximum Slew Rate 10 A/s Power Supply Group

003416 Shall Number of Poles 1 - Reference Design

003418 Shall Number of Coils per Pole 1 - Reference

Design

003420 Should Number of Turns per Coil 48 - Reference

Design

003422 Shall Coil Conductor Material Copper CDA 101 – 105 - Standard

Practice

003424 Shall Conductor Shape Square - Reference Design

003426 Should Bare Conductor Size 9.00 x 9.00±0.15 mm2 Reference

Design

003428 Should Cooling Hole Diameter 6.0±0.1 mm Reference Design

003430 Should Conductor Corner Radius 1.5 mm Reference

Design

003432 Shall Base Layer Conductor Insulation Material Mylar - Standard

Practice

003434 Should Base Layer Insulation Thickness ½ Lap 0.1 mm Standard

Practice

003436 Shall Glass Tape Insulation Material

E-Glass or S- Glass - Standard

Practice

003438 Should Glass Tape Insulation Thickness ½ Lap 0.2 mm Standard

Practice

003440 Shall External Coil Dielectric Isolation Wrap Material

E-Glass or S- Glass - Standard

Practice

003442 Shall External Coil Dielectric

Isolation Wrap Thickness

0.5 +0.5, -0.0 mm Standard

Practice

003444 Shall Coil Impregnation Material Epoxy - Standard

Practice

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 13 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

ID NUM

(S09-08-)

RQMT

DEF

Specification Description Value Unit Traceability/

Assumption

003446 Shall Coil Impregnation Method Vacuum - Standard

Practice

003448 Should Maximum Operational Magnet Bus Voltage 30 V Standard

Practice

003450 Shall Minimum High-Pot Testing Voltage 250 V Standard

Practice

003452 Shall Minimum Resistance at

Minimum Hi-Pot Voltage

2 GΩ Standard Practice

003454 Shall Impulse Testing Protocol Required - Standard

Practice

003456 Shall Power Cable Interface, Cable Size MCM 373 - Standard

Practice

003458 Shall Power Cable Interface, Lug Manufacturer and

P/N

Thomas & Betts

54918BE-PH

- Standard

Practice

7.2 Hydraulic Circuit Parameters

Table 7-2 Magnet Hydraulic Circuit Structure

ID NUM

(S09-08-)

RQMT

DEF

Specification Description Value Unit US English

(reference) Traceability/ Assumption

003500 Shall Number of Water Circuits per Coil 2 - - Reference

Design

003502 Should Conductor Length per Coil

106.1 ± 0.3 m 348.1 ± 1 ft Reference

Design

003504 Should Conductor Cooling Hole Diameter 6.0 mm - Reference

Design

003506 Shall Design Pressure 517 kPa 75 psi Reference Design

003508 Should Minimum Circuit Flow Rate 3.27 l∙min-1 0.86 gpm Reference

Design

003510 Should Coil Circuit Water Flow Velocity 1.93 m/s 6.33 ft/s Reference

Design

003512 Should Water Temperature Rise Inside Coils 5.4 ºC 9.7 F Reference

Design

003514 Should Magnet Flow Rate 6.54 l∙min-1 1.73 gpm Reference Design

003516 Shall Operating Inflow Water Pressure 725 kPa 105 psi

Compatibility with LCW at

LBNL

003518 Should Operating Outflow Water Pressure 207 kPa 30 psi

Compatibility with LCW at

LBNL

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 14 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

7.3 Magnet Electrical Interlock Protection

Table 7-3 Electrical Interlock Specifications

ID NUM

(S09-08-)

RQMT

DEF

Specification Description Value Unit Traceability/

Assumption

003600 Will Power Supply Circuit Structure SOLO Magnet - Unique magnet per TL

003602 Shall Number of Interlock Thermal Switches per Water Circuit 1 -

Compatible with TL DC dipole interlock design

003604 Shall Number of Interlock Thermal Switches per Coil 2 -

Compatible with TL DC dipole interlock design

003606 Shall Number of Interlock Thermal Switches per Magnet 2 -

Compatible with TL DC dipole interlock design

003608 Shall Open Switch Interlock Detection Requirement

Magnet Level -

Compatible with TL DC dipole interlock design

003610 Shall Over Temp Switch Opening Req. 70 ºC

Compatible with TL DC dipole interlock design

003612 Shall Statistical Standard Deviation for Switch Opening Temp 2 ºC

Compatible with TL DC dipole interlock design

003614 Shall Switch Close Temp after Opening 35 ºC

Compatible with TL DC dipole interlock design

003616 Shall Statistical Standard Deviation for Switch Closing Temp 2 ºC

Compatible with TL DC dipole interlock design

003618 Shall Thermal Switch Voltage Specification +/- 28 VDC

Compatible with TL DC dipole interlock design

003620 Shall Thermal Switch Specification Thermik

L06-70. 05 0300/0300

Compatible with

TL DC dipole interlock design

003622 Shall Thermocouple Placed on the Water Exhaust - -

003624 Shall Thermocouple Type Specification K 1

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 15 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

8 SUPPORTS AND ALIGNMENT

Figure 8.1 Overview of the Lambertson magnet support frames.

Table 8-1 Support structure requirements

ID NUM

(S09-08-) Specification Traceability/ Assumption

003700 DC Lambertson magnet shall be supported by the six-strut system. Eng Judgment

003701 Components of the six-strut system shall be certified to be suitable and rated for intended use Eng Judgment

003702 Each Lambertson magnet has a unique support frame with a unique hole patterns interface. Hole patterns are specified in AL-1309- 9749.DRW and AL-1309-9750.DRW

Supports Group

Figure 8.2 Overview of hole patterns at the support interface of Lambertson magnets.

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 16 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Table 8-2 Lifting fixture textural requirements

ID NUM

(S09-08-) Specification Traceability/ Assumption

003710 DC Lambertson magnet shall be supplied with a removable lifting fixture. Eng Judgment

003711 Lifting fixture shall utilize swivel-type lifting eyes at designated lift points. Eng Judgment

003712 Lifting fixture shall be certified to be suitable and rated for intended use. Eng Judgment

Table 8-3 External fiducial markers textual requirements

ID NUM

(S09-08-) Specification Traceability/ Assumption

003720 DC Lambertson magnet shall be provided with permanently attached external fiducial marker posts. Eng Judgment

003721

AR02S:SIL shall be equipped with 7 fiducial marker posts and AR12S:SEL shall be equipped with 10 fiducial marker posts. The number of the fiducial markers can be revisited at the Final Design Review.

Eng Judgment

Figure 8.3 Overview of the fiducial markers locations.

Figure 8.4 Spacer post assembly with SMR nest mount.

Table 8-4 Magnet-Magnet Position Tolerances

ID NUM

(S09-S08-)

RQMT

DEF Specification Description Value Unit Traceability/ Assumption

003731 Shall X-direction magnet-to-magnet position tolerance a ± 150 μm Beam Physics

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 17 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

ID NUM

(S09-S08-)

RQMT

DEF Specification Description Value Unit

Traceability/ Assumption

003732 Shall Y-direction magnet-to-magnet position tolerance a ± 150 μm Beam Physics

003733 Shall Z-direction magnet-to-magnet position tolerance a ± 400 μm Beam Physics

003734 Shall Rotation about x-axis magnet-to-magnet angular tolerance a ± 1000 μrad Beam Physics

003735 Shall Rotation about y-axis magnet-to-magnet angular tolerance a ± 1000 μrad Beam Physics

003736 Shall Rotation about z-axis magnet-to-magnet angular tolerance a ± 600 μrad Beam Physics a The specified error interval corresponds to a 95% confidence based on a Gaussian error distribution

9 ALS-U TRANSFER LINE DIPOLE REQUIREMENTS ADOPTED TO

LAMBERTSON MAGNET

The following section was adopted from the ALS-U internal document AL-1462-7396 (BTA-MAGNETS Dipole Common Mechanical Requirements by S. Soezeri, M.

Mardenfeld, and C. Swenson) in order to unify the set of design principles across transfer line dipole magnets.

9.1 General Requirements

Number Type Description Value Reference General

Shall Specifications: Unless otherwise specified, information in drawings and specifications are to be interpreted as "SHALL" requirements. Information in "REFERENCE DESIGN" CAD models are to be interpreted as "SHOULD" or "MAY". Information in "INTERFACE CONTEXT" CAD models are to be interpreted as "WILL".

N/A

General

Shall Specifications: The drawings package includes some components defined by "space claim" volumes. For these components, the vendor has significant freedom in completing the design. While LBNL is providing a solid model "Reference Design" for these components as a guide, the vendor has the freedom to alter those designs provided they remain entirely within the specified volumes, meet the requirements listed in specifications and in the drawing notes, and meet the non-reference dimensions controlled by the drawing.

N/A

General

Shall Specifications: The drawings package includes some components defined with specific dimensions. These dimensions are shown at the assembly or interface level.

For these components, the vendor shall adhere to the dimensions and design intent of the interface drawings, while filling in the detailed piece-part level design, and ensuring that the magnet meets requirements, standard practices, and is fit for service.

N/A

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 18 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Number Type Description Value Reference General

Shall Specifications: Where the vendor uses all or part of the LBNL provided design, it is still the vendors responsibility to ensure that those components meet all requirements, standard practice, and are fit for service. This holds for components defined by both "space claim" volumes AND components defined by specific dimensions. The reference design provided by LBNL is not approved for fabrication, and has not been through the full rigor of a final design review.

N/A

General

Shall Accelerator Environment: The intended operating life for the magnet assembly is 7500 hours a year for 25 years.

N/A

General

Should Accelerator Environment: The magnet assembly will be operated in a high radiation environment (X-Rays), and radiation resistant materials and components should be used wherever not cost prohibitive.

N/A

General

Shall Accelerator Environment: Polymeric based materials or others material types susceptible to radiation degradation, shall not cross the plane of the magnet on which the beam is bent. This includes, but is not limited to, electrical insulation, water hoses, terminal block housings, etc.

Exceptions may be granted based on specific approval from LBNL.

N/A

General

Should Accelerator Environment: Polymeric based materials or others material types susceptible to radiation degradation, should not cross the mid-plane of the Accumulator Ring.

The Accumulator Ring is nearby interfacing equipment shown in the "interface context models".

N/A

General

Should Accelerator Environment: Polymeric based materials or others material types susceptible to radiation degradation, should ideally remain this far above or below both the transferred beam plane and the Accumulator Ring mid-plane.

50mm

General

Shall Accelerator Environment: Hydrocarbon containing lubricants or other high vapor pressure volatiles shall not be used without explicit approval of LBNL, due to the proximity of ultra-high vacuum equipment.

N/A

General

Shall Accelerator Environment: During vacuum baking operations, magnet will see increased temperature due to heating of adjacent equipment. Magnet must be designed to withstand this temperature without degradation or disruption of alignment. During vacuum baking, magnet can assumed to be un-energized, and with the normal operation flow of cooling water flowing through coils.

50 C at pole tips, temperature of rest of assembly to be based on estimated conduction from pole tips and convection to ambient

General

Should Materials: Preferred metallic materials for non-fastener components include austenitic stainless steels, mild steels, C101 copper, and aluminum 6061-T6.

N/A

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 19 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Number Type Description Value Reference General

Should Materials: Preferred nonmetallic materials for non-fastener components include G10, FR4 and polycarbonate.

N/A

General

Shall Materials: Vendor shall place appropriate magnetic permeability limitations on materials in order to facilitate achieving the magnet field requirements.

N/A

General

May Design Principles: Use of standard imperial dimensions for the size of geometric features are allowed, provided other requirements to use metric units are followed. For instance, a stock plate thickness of 0.25 inches can be used, provided it is dimensioned in metric.

N/A

General

Should Design Principles: Features, parts, hardware, and fittings should be standardized as much as reasonably possible among different components, subassemblies, and magnet families

N/A

General

Should Design Principles: Vendor should make a best effort to minimize magnet equipment obscuring visible line of sight to SMRs fiducials nests.

N/A

General

Should Design Principles: Individual components should be designed in such a way that they avoid crossing over the split-plane of the magnet as much as possible, in order to facilitate splitting magnets into upper and lower halves. If components must cross the split-plane of the magnet, they should by mounted in such a way that they can easily be removed and reinstalled, even within limited space.

N/A

General

Shall Design Principles: Minimum chamfer size on sharp edges within 30mm of electrical insulation, to avoid accidental damage of insulation.

3 mm

General

Shall Design Principles: Sharp edges, corners, and other cut or bump hazards shall be avoided where possible, or be broken with chamfers or rounding for the safety of personnel who will need to work in the confined space environment of the magnet in the accelerator tunnel.

N/A

General

Shall Maintenance: If custom tooling is required for alignment, assembly, coil replacement, lifting, or other maintenance operations foreseeable over the course of the operational life, vendor shall provide LBNL with that tooling, along with solids models, drawings, and instructions for use.

N/A

General

Shall Maintenance: Vendor shall supply production spares for the following components: hoses, thermal flow switches, alignment pins, terminal blocks, any nonstandard or specially coated hardware. For these items, the quantity of spares shall be the greater of: 1x of each type/size, or 20% overage across all magnet assemblies.

N/A

General

Shall Maintenance: Vendor shall supply production spares for the following materials: JIC fitting crush gaskets, thermosetting bus insulating tape, approved lubricants, and electrical contact aid (if used). For these items, the quantity or spares shall be equal to the quantity used in the magnet assemblies.

N/A

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 20 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Number Type Description Value Reference General

Shall Maintenance: Vendor shall supply coil fabrication tooling and winding fabrication instructions and travelers for all dipoles.

N/A

General

Should Maintenance: Vendor should supply spares for any other difficult to purchase items which may conceivably need replacement over the lifetime of the magnet.

N/A

General

Should Maintenance Access: Vendor should make a best effort to maintain general accessibility to components within the context of the nearby equipment in the accelerator tunnel, by reviewing the "Interface Context Models" throughout the design phase. Specific components that shall have maintenance access are called out in the relevant sections.

N/A

General

Shall Maintenance Access: Vendor shall make a best effort to not obstruct access to vacuum equipment which is near to, and transits through the bore, of the magnet to allow for flange assembly, leak checking, vacuum support adjustment, etc.

This includes minimalizing protrusion of equipment (e.g.

bus leads, enclosures, coil supports, etc.) into the axial space between magnets, as well as being cognizant of pumps, vacuum supports, and other equipment which will be near the magnets when they are installed in the accelerator tunnel. See the "Interface Context Models".

N/A

9.2 Requirements of Magnet Coils

Number Type Description Value Reference

Coils 001 Shall Interface: Coil and coil supports shall fit entirely within the

"space-claim" volumes defined by the drawings.

AL-1309-9749.DRW

AL-1309-9750.DRW

Coils 002 Shall

Interface: The electrical bus lead shall egress from the coil in a place that is consistent with the "space-claims" defined by the drawings

AL-1309-9749.DRW

AL-1309-9750.DRW

Coils 003 Should

Interface: Final manufactured coil size should be kept as small as reasonable while achieving other requirements, due to limited space between magnet assemblies once installed in the tunnel.

N/A

Coils 004 Shall

Design: Vendor shall design an appropriate coil winding pattern, conductor size, insulation build up, resin type, and potting process compatible with other magnetic, electrical, and hydraulic requirements. Stated below are the LBNL reference values which were used for concept development.

N/A

Coils 005 Deleted Deleted Deleted

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 21 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Number Type Description Value Reference

Coils 006 Shall Design: Vendor shall choose coil winding helicity. Winding helicity shall be consistent with other requirements. N/A

Coils 007 Deleted Deleted Deleted

Coils 008 Shall

Design: Coil conductor shall be of the following material, for good conductivity, and especially for compatibility with deionized water systems. The conductor requirements shall be per specification ASTM B188-09:

CDA C10100

Coils 009 Should Design: Preferred copper hardness:

Soft annealed temper (O60) as defined in ASTM Specification B601-09

Coils 010 Shall

Design: Coils shall be free of resin rich areas, resin poor areas, and voids. Internal volumes of coils not occupied by conductors shall be filled with G10 spacers or epoxy filled glass roving.

N/A

Coils 011 Shall Design: Minimum insulation voltage hi-pot 2X Max Operating

Voltage + 1000V

Coils 012 Shall Design: Minimum insulation resistance via megger 2 Gohm

Coils 013 Shall

Coil Supports: Coil shall be securely clamped in place by appropriate supports. These supports shall provide a preload force which seats the coil against the yoke. Support shall resist magnetic forces, gravity forces, and motion due to changing magnetic fields, and misalignment during transport.

N/A

Coils 014 Should

Coil Supports: G10 shims should be used between coils and surfaces they seat against, to protect the coil surfaces, and to provide capability for fine adjustment of coil position. G10 is selected for known resistance to synchrotron radiation, mechanical stability/creep resistance, and insulating characteristics

N/A

Coils 015 Shall

Coil Supports: Coil supports and shims shall be designed in such a way that the removal and replacement of a coil is repeatably located, and that the coil is protected from any point loads or undue stress. Specific attention should be paid to positional repeatability of the coil location with respect to the front and back yoke faces (defined along magnet Z-axis) and the pole faces (reference axis unique to direction of beam bend)

Coil positioning repeatability: 0.5 mm

Coils 016 Shall

Coil Supports: Coil supports shall be made of hard tempered aluminum and/or G10 due to avoid undesirable magnetic effects proximate to the good field region

N/A

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 22 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Number Type Description Value Reference Coils 017 Should Reference coil design: Build type VPI

Coils 018 Should Reference coil design: Potting compound DGEBA epoxy

Coils 019 Should Reference coil design: Main circuit, turn insulation, 1st layer, material Mylar tape

Coils 020 Should Reference coil design: Main circuit, turn insulation, 1st layer, wraps 1x layer, half lapped total thickness 0.1mm

Coils 021 Should Reference coil design: Main circuit, turn insulation, 2nd layer, material E-Glass or S-Glass tape

Coils 022 Should Reference coil design: Main circuit, turn insulation, 2nd layer, wraps 1x layer, half lapped total thickness 0.4mm

Coils 023 Should Reference coil design: Main circuit, layer to layer insulation, material

Omitted in point design. May be included per vendor discretion

Coils 024 Deleted Deleted Deleted

Coils 025 Deleted Deleted Deleted

Coils 026 Should Reference coil design: Ground wrap: total thickness 0.5mm

9.3 Requirements on Magnet Bus Leads

Number Type Description Value Reference

Bus 001 Shall Interface: The bus leads shall fit entirely within their "space-claim" volume as defined by the drawings.

AL-1309-9749.DRW

AL-1309-9750.DRW

Bus 002 Shall Interface: Terminal blocks shall be provided with sufficient terminals for thermal flow switches.

AL-1309-9749.DRW

AL-1309-9750.DRW

Bus 003 Shall Interface, Maintenance: Terminal blocks shall fit entirely within the "space-claim" volume as defined by the drawings. N/A

Bus 004 Deleted Deleted N/A

Bus 005 Shall Interface: Bus leads flags must be sized to accept the main power electrical lug stated in the electrical design requirements section. N/A

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 23 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Number Type Description Value Reference

Bus 006 Shall

Design: Air cooled bus jumpers (for the main coil circuit) shall be sized for the following temperature rise. This sizing shall make consideration for restricted airflow within the electrical safety enclosure, electrical contact resistance, and spreading resistance. Bus jumper cooling may take credit for conduction from nearby water flow. Sizing may be done per code, calculation, or test.

30 C temperature rise over a 40 C ambient

Bus 007 Should

Design: The following is a reference ampacity of bus bars routed through enclosures. Vendor may use other ampacities as justified by code or calculation.

1000 Amps / in^2

Bus 008 Shall

Design: Bus routing in the reference CAD model only used to establish the "space-claim" dimensions. Vendor is responsible for designing the bus routing in agreement with this document.

AL-1309-9749.DRW

AL-1309-9750.DRW

Bus 009 Shall

Design: The reference CAD design show the electrical bus routing standardized across magnet variants such that the upper lug is "+" and the lower lug is "-". Vendor may flip this convention, if necessary for winding helicity, after LBNL authorization.

N/A

Bus 010 Should

Design: It is preferred that water cooled bus lead water fittings are brazed onto the copper conductor, to ensure a leak tight seal.

Fittings are described in the cooling requirements section.

N/A

Bus 011 Deleted Deleted N/A

Bus 012 Shall

Flags: Bus lead and electrical flag contact design should follow an appropriate industry practice regarding size, contact area, clamping force, fastener torque, fastener size, surface finish, flatness, hardness, bus flag thickness, and other practical design factors.

CDA Publication 22 or other recognized standard practice

Bus 013 Shall

Flags: Braze joints between copper bus and lead flags shall be designed appropriately to achieve the temperature requirements listed above.

N/A

Bus 014 Shall

Flags: Vendor shall determine where an appropriate plating or contact aid between electrical contact surfaces, and incorporate into the design as appropriate. Use of high vapor pressure or non-UHV compatible materials requires LBNL approval.

N/A

Bus 015 Shall

Fasteners: Electrical contacts for bus flags, power cable lugs, and bus jumpers shall be designed with through holes. Bolts for electrical contacts shall be fastened with a nut with washer, or nut plate. Copper surfaces must be protected from bearing of the nut or bolt head with a hardened flat washer. Washers and nut plates shall be large enough to promote even clamping force.

N/A

Bus 016 Shall Fasteners connecting electrical contacts for bus flags, power cable lugs, and bus jumpers shall be 316 stainless steel. N/A

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 24 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Number Type Description Value Reference

Bus 017 Shall

Fasteners connecting electrical contacts for bus flags, power cable lugs, and bus jumpers shall include Belleville washer(s).

Belleville washers shall be sized such that the required joint clamping force is achieved before the Belleville washer is flat, to allow residual travel to compensate for thermal expansion without loss of preload.

N/A

Bus 018 Shall

Routing: Bus lead routing should follow best practice to minimize field errors, and aid in achieving the magnet field requirements specified elsewhere. This includes maintaining reasonable distances between the leads and the good field region and routing "+" and "-" leads adjacent to each other.

N/A

Bus 019 Shall

Routing: Water cooled bus routing shall minimize the number and sharpness of bends as much as reasonable, to reduce coolant turbulence. Minimum allowed bend radius is twice the conductor OD (side length for square conductors).

N/A

Bus 020 Shall

Routing: The position of the main electrical power cable interface points in the reference design have been selected to allow the large diameter cables to route over the edge of the welded structures to which the magnets are mounted ("rafts") without tight bend radii. This feature must be maintained. See "Interface Context Models".

N/A

Bus 021 Shall

Routing, Maintenance: Routing of bus leads shall facilitate splitting the magnet assembly into upper and lower parts. Bus leads on the lower magnet half must not interfere with removing the upper magnet half by hoisting it vertically.

N/A

Bus 022 Deleted Deleted N/A

Bus 023 Shall

Support: Water cooled bus leads shall have bracketry providing mechanical fixation to the yoke, near the point of bus egress from the coil. These supports shall protect the point of egress from any stresses due to motion of the bus leads

N/A

Bus 024 Shall

Support: Water cooled bus leads shall have bracketry providing mechanical fixation to the yoke, near the water fittings which join to coolant hoses. These supports shall protect the bus leads from any stresses due to hose motion or tightening of fittings.

N/A

Bus 025 Should Support: Water cooled bus lead support brackets near water fittings should grasp the fitting, and not the bus lead. N/A

Bus 026 Shall

Support: Water cooled bus leads shall have bracketry which support the weight of the main circuit power cable, to prevent gravity induced creep. These brackets may be designed to grab the cable itself or the bus lead.

N/A

Bus 027 Deleted Deleted N/A

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 25 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Number Type Description Value Reference Bus 028 Deleted Deleted N/A

Bus 029 Shall

Support: All bus lead support shall grasp the lead firmly to prevent any relative motion or wiggling, for instance, by wrapping the lead with glass cloth shim to ensure a tight fit up, or other method.

N/A

Bus 030 Shall

Maintenance Access: Terminal blocks should be positioned and oriented to maintain access as best as reasonably achievable.

The routing of wires to terminal blocks shall be done in such a way that they may be easily removed and replaced in the context of crowded accelerator tunnel. See "Interface Context Models" for references.

N/A

Bus 031 Shall

Maintenance Access: The design of bus leads, bus bars, and other components inside of the electrical enclosure shall allow sufficient access for wrenches, removal of power cables, and disassembly of bus bars, with a minimal removal of the electrical enclosure. This disassembly must be possible within the crowded context of nearby equipment in the accelerator tunnel

- see "Interface Context Models"

N/A

9.4 Electrical Safety Requirements

Number Type Description Value Reference

Elec Saf.

001 Shall Grounding: All metal components not intentionally designed to be electrically energized shall have a path to ground N/A

Elec Saf.

002 Should Grounding: A single ground point for the entire assembly is preferred with all grounded components electrically connected. N/A

Elec Saf.

003 Shall Grounding: Ground wire size #2, AWG

Elec Saf.

004 Shall

Grounding: Ground point lug interface must be compatible with both of these lug parts, by including an appropriate tapped hole and either a spot face or an area free of paint/anticorrosive.

Vendor: Blackburn Parts: CTL1-14 and

CTL2-14

Elec Saf.

005 Shall

Standards: All current carrying conductors, electrical junctions, and energized surfaces shall EITHER be insulated according to an appropriate nationally recognized standard, OR have exposed surfaces contained within an electrical safety enclosure. This includes, for instance, water fittings and thermal flow switches at the same potential as electrical bus.

N/A

Elec Saf.

006 Shall

Standards: Electrical safety enclosures shall protect workers from electrical hazards, according to the following standards, and be "finger safe", including at the areas where conductors, cables, or hoses cross its boundary.

IEC 60529

IP2X Finger

Elec Saf.

007 Shall Standards: COTS Electrical components must be ROHS compliant. N/A

O ffi cia lly

R ele as ed to th e L

BN

L D oc um en t C on tro l C en te r

Re lea se d:

S ep te m be r 9 th , 2

D

CC

A ut h Ke y:

Q

6B

FG

7D

AL-1311-8004 Rev. A Doc. Status: Released Page 26 of 45

Lawrence Berkeley National Laboratory

Latest version of this document can be found in the LBNL Document Control Center.

A hardcopy of this document is for reference ONLY.

Number Type Description Value Reference

Elec Saf.

008 Shall

Standards: COTS electrical components must either be UL listed, or meet an equivalent safety standard, and be appropriately rated for their service ampacity.

N/A

Elec Saf.

009 Shall

Insulation: Bus leads, where not otherwise contained within an isolation enclosure, shall be insulated with a NEMA grade C-2 expandable braided fiberglass sleeving with elastomer coating, per NEMA TF-1 type 5. This includes main coil water cooled bus and jumpers. The preferred brand, listed here, shall be used unless otherwise approved.

Varglas (Varflex Corp.), or equivalent

Elec Saf.

010 Should Insulation: Preferred insulation material for miscellaneous wires, e.g., thermal flow switches, etc. Bus lead insulation is stated above.

NEMA Class

200MW 36

Elec Saf.

011 Shall

Insulation: Electrical insulating material not otherwise contained inside of an isolation enclosure shall not cross…