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vault backup: 2026-03-12 16:09:06

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Zane Meyers
2026-03-12 16:09:06 -04:00
parent 96a59fe03a
commit 91bbe285c5
2 changed files with 9 additions and 3 deletions
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nfpa-70_300_general-requirements.md
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@@ -714,7 +714,7 @@ Intermediate supports shall be provided
as necessary to limit supported conductor lengths
to not greater than those values specified in Table 300.19(A).
#### Table 300.19(A) Spacings for Conductor Supports
#### Table 300.19(A) Spacings for Conductor Supports ^t300-19a
| Conductor Size | Aluminum or Copper-Clad Aluminum | Copper |
| -------------------------------- | --------------------------------:| ------:|
@@ -731,7 +731,7 @@ to not greater than those values specified in Table 300.19(A).
Support methods and spacing intervals for fire-rated cables and conductors
shall comply with any restrictions provided in the listing
of the electrical circuit protective system used
and in no case shall exceed the values in Table 300.19(A).
and in no case shall exceed the values in [[#^t300-19a|Table 300.19(A)]].
#### 300.19(C) Support Methods.
@@ -752,7 +752,7 @@ One of the following methods of support shall be used:
the cables being carried on two or more insulating supports
and additionally secured thereto by tie wires, if desired.
Where this method is used, cables shall be supported at intervals
not greater than 20 percent of the support spacing in Table 300.19(A).
not greater than 20 percent of the support spacing in [[#^t300-19a|Table 300.19(A)]].
4. Other approved means.