Appendix B Electrical Equipment Fabrication

Engineering Division Electronic Equipment Build Standard Appendix B, Electrical Equipment Fabrication
Revision 1

B.1 General
B.1.1 Scope
This specification sets forth the minimum requirements for the fabrication of single voltage source electronic equipment. This specification applies to new equipment fabricated after the current revision date. Users must be aware that older equipment built to previous revisions of this specification may not conform to all current requirements.

B.1.2 Quality
The Laboratory’s intent is to obtain the highest quality of materials and workmanship found in the best custom electronic equipment fabrication. Constructive suggestions for improving quality are welcome and will be given prompt consideration.

B.1.3 Materials
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Only new parts of current manufacture shall be used.
Only components listed or recognized by a Nationally Recognized Testing Laboratory (NRTL) shall be used, e.g., UL, CSA-NRTL, ETL, etc. CE is not an NRTL. Equipment and components marked only with CE must be inspected and approved by the AHJ for research and scientific electronic equipment.
An updated list of NRTL marks can be found at:
http://www.osha.gov/dts/otpca/nrtl/nrtlmrk.html
All components must be used in accordance with the manufacturer’s intent and instructions and in accordance with NRTL specifications. All components must be rated for the voltage and current range for which they are used. Assemblies subject to high fault currents (>10,000 A) must either be rated to withstand the fault or appropriately protected with fast-acting fuses. Recognized components must be evaluated within the context of their component category.
No substitutions may be made without the approval of the AHJ for research and scientific electronic equipment.

B.1.4 Vendor Information Feedback
All changes agreed to between an external vendor and LBNL shall be marked on one set of documentation, dated, and initialed. The preferred colors are red for deletions and green for corrections and/or additions.
The marked-up set of documents shall be returned to LBNL with the first “equipment” shipment (partial or complete).

Engineering Division Electronic Equipment Build Standard Appendix B, Electrical Equipment Fabrication
Revision 1

B.1.5 Order of Precedence
In case of conflict, the fabrication package documents shall take precedence in the following descending order:
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Statement of Work