Document page listing technical specifications and tables for grounding conductor sizes.
NYC-WTC_000172105Folder label: “System Ground Equipment Grounding and Bonding Conductors”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document 09/11/98 13:30 FAI 212 615 3700 I '■ . . COSENTIXI ASSOCIATES ®005/005
ARTICLE 8 GROUNDING CONDUCTORS 3110
Table 1 System Ground Equipment Grounding and Bonding Conductors
Sizei of Largest Circuit Conductor or Equivalent far Multiple Conductors Size of Grounding or Multiple Services Conductor (AWG) Copper Aluminum Copper Aluminum
12 12 16* 12* 10 8 14* 12* 8 6 12* 10* 6 4 10* 8* 4 to 2 0 8 6 1 or 0 2/0 or 3/0 6 4 2/0 or 3/0__ 4/0 or 250 MCM 4 2 Over 3/0 to Over 250 MCM 'T’ 0 350 MCM to 500 MCM Over 3: Over 500 MCM 0 3/0 to 600 MCM to 900 MCM I Over 600 MCM Over 900 MCM 2/0 4/0 to 1100 MCM to 1750 MCM Over 1100 MCM Over 1750 MCM 3/0 250 MCM ' Permissible for equipmeol grounding only but shall not be aniehed M a cireuit COuduclOI. No. 18 copper or No. 14 alutiunum wire shall be minimure uied for portable or pendant equipment grounding if the branch circuit over-current device does not exceed fifteen amperes.
h. The grounded circuit conductor and/or neutral conductor of an interior wiring system shall not be used for grounding conduit, armored cable, other raceways or equipment. i. Lightning rods shall not be used as grounding conductors. j. Grounding conductors of lightning arresters shall not be smaller than No. ( 6 and shall meet the same installation requirements as grounding conductors of interior wiring systems. They shall not be used as system or equipment groun ding conductors.
197
SEP-11-iggg 14:30 212 615 3700 97K P.05 NYC-WTC_000172105
OCR can misread numbers and units. Confirm readings against the page image before using them.
Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000173262
A fax cover sheet from Kaback Enterprises dated September 11, 1998, addressed to the Mayor's Office of Emergency Management.
1 shared non-person entities · Same agency, volume and box · similarity 0.873
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000172686
Revised electrical work proposal from ADCO Electrical Corporation for the Mayor's Office of Emergency Management on the 26th floor at 7 World Trade Center in May 1998.
1 shared topics · Same agency, volume and box · similarity 0.827
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000172103
Letter submitting revised change order #4 for $180,087 covering concrete work and graphic annunciator panel installation at 7 WTC.
Same agency, volume and box · similarity 0.810
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000172028
Change order #004 for $261,029 covering oil tank removal, concrete housekeeping pad, and electrical systems installation.
Same agency, volume and box · similarity 0.806
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000173223
Supplement to HVAC specifications detailing discharge plenum construction standards for emergency generators at the Mayor's Office of Emergency Management.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.802
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000166842
Engineering drawing illustrating a beam-mounted antenna monopole design for multiple antennas.
1 shared topics · Same agency, volume and box · similarity 0.800
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165112
Construction specifications document detailing foundation requirements for the World Trade Center river water intake system relocation project.
1 shared non-person entities · similarity 0.828
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165271
Engineering drawings and specifications for replacing a high-pressure water line under the Lincoln Tunnel contract.
Similar document embedding; no shared entity or topic indexed. · similarity 0.824
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000166488
Department of Buildings report containing findings and recommendations regarding the World Trade Center site.
1 shared topics · similarity 0.813
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000143354
Fragmented text containing only a reference number and unreadable characters from the DEP Box 06 collection.
1 shared non-person entities · similarity 0.807
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000127738
Health and safety plan for Phase I deconstruction at 133-135 Greenwich Street and 21-23 Thames Street dated June 8, 2005.
1 shared non-person entities · similarity 0.802
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164098
Distribution of materials provided at January 15, 2002 WTC contractor health and safety meeting.
1 shared non-person entities · similarity 0.802
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
Page similarity is temporarily unavailable or this page has no indexed vector.
Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
NYC-WTC_000173262
A fax cover sheet from Kaback Enterprises dated September 11, 1998, addressed to the Mayor's Office of Emergency Management.
Similar indexed content
Construction specifications document detailing foundation requirements for the World Trade Center river water intake system relocation project.
Similar indexed content
NYC-WTC_000172686
Revised electrical work proposal from ADCO Electrical Corporation for the Mayor's Office of Emergency Management on the 26th floor at 7 World Trade Center in May 1998.
Similar indexed content
NYC-WTC_000165271
Engineering drawings and specifications for replacing a high-pressure water line under the Lincoln Tunnel contract.
Similar indexed content
NYC-WTC_000166488
Department of Buildings report containing findings and recommendations regarding the World Trade Center site.
Similar indexed content