diff --git a/2025-12-10.md b/2025-12-10.md index a6ab6d8..ded5de8 100644 --- a/2025-12-10.md +++ b/2025-12-10.md @@ -55,6 +55,8 @@ and costed a job half a million in profit, what I took away was that we sold high-risk scope without knowing what was required _and without qualification_. +*** + Others have suggested creating new assemblies grouped by manufacturer, which I'm not a fan of. While it's true that similar implementations diff --git a/banjo-tablatures.md b/banjo-tablatures.md index 77f4f15..2e5a4e8 100644 --- a/banjo-tablatures.md +++ b/banjo-tablatures.md @@ -77,9 +77,9 @@ then quickly release the first, letting the second ring. } ``` -It is possible to add "H" and "Po." markers, +It is _possible_ to add "H" and "Po." markers, but the syntax is ugly. -They are not ubiquitous anyway. +They are not ubiquitous or especially helpful anyway. ### String Bending diff --git a/conduit-sizing.md b/conduit-sizing.md index fdc73f0..667f95b 100644 --- a/conduit-sizing.md +++ b/conduit-sizing.md @@ -1,34 +1,14 @@ --- id: aliases: [] +title: Conduit Sizing tags: + - authorship/original - destiny/fleeting - status/incomplete - topic/construction/electrical - type/encyclopedia - - authorship/original -title: Conductor Sizing --- # Conduit Sizing -Table 1 Percent of Cross Section of Conduit and Tubing for Conductors and Cables - -| Number of Conductors and/or Cables | Cross-Sectional Area (%) | -| ---------------------------------- | ------------------------ | -| 1 | 53 | -| 2 | 31 | -| Over 2 | 40 | - -> [!info] Informational Note No. 1: -> Table 1 is based on common conditions of proper cabling and alignment of conductors -> where the length of the pull and the number of bends are within reasonable limits. -> It should be recognized that, for certain conditions, -> a larger size conduit or a lesser conduit fill should be considered. - -> [!info] Informational Note No. 2: -> When pulling three conductors or cables into a raceway, -> if the ratio of the raceway (inside diameter) -> to the conductor or cable (outside diameter) -> is between 2.8 and 3.2, jamming can occur. -> While jamming can occur when pulling four or more conductors or cables into a raceway, -> the probability is very low. \ No newline at end of file +![[nfpa-70_ch09#Table 1 Percent of Cross Section of Conduit and Tubing for Conductors and Cables|Table 1 Percent of Cross Section of Conduit and Tubing for Conductors and Cables]] diff --git a/nfpa-70_ch09.md b/nfpa-70_ch09.md new file mode 100644 index 0000000..5b06c78 --- /dev/null +++ b/nfpa-70_ch09.md @@ -0,0 +1,36 @@ +--- +id: +aliases: + - nec-ch9 +title: Chapter 9 Tables +tags: + - authorship/other + - destiny/permanent + - exclude-from-word-count + - status/incomplete + - topic/construction/electrical + - type/media/reference +--- +# Chapter 9 Tables + +## Table 1 Percent of Cross Section of Conduit and Tubing for Conductors and Cables + +| Number of Conductors and/or Cables | Cross-Sectional Area (%) | +| ---------------------------------- | ------------------------ | +| 1 | 53 | +| 2 | 31 | +| Over 2 | 40 | + +> [!info] Informational Note No. 1: +> Table 1 is based on common conditions of proper cabling and alignment of conductors +> where the length of the pull and the number of bends are within reasonable limits. +> It should be recognized that, for certain conditions, +> a larger size conduit or a lesser conduit fill should be considered. + +> [!info] Informational Note No. 2: +> When pulling three conductors or cables into a raceway, +> if the ratio of the raceway (inside diameter) +> to the conductor or cable (outside diameter) +> is between 2.8 and 3.2, jamming can occur. +> While jamming can occur when pulling four or more conductors or cables into a raceway, +> the probability is very low. diff --git a/nfpa-70_national-electric-code.md b/nfpa-70_national-electric-code.md index b70d602..5ffa317 100644 --- a/nfpa-70_national-electric-code.md +++ b/nfpa-70_national-electric-code.md @@ -195,7 +195,9 @@ title: "NFPA 70: National Electric Code" * [[nfpa-70_830|830 Network-Powered Broadband Communications Systems]] * [[nfpa-70_840|840 Premises-Powered Broadband Communications Systems]] -## Chapter 9 Tables +*** + +* [[nfpa-70_ch09|Chapter 9 Tables]] * [[nfpa-70_anx-a|Annex A: Product Safety Standards]] * [[nfpa-70_anx-b|Annex B: Application Information for Ampacity Calculation]]