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The provisions of Article 310 of NFPA 70 are adopted by reference with the following modifications:
1. Insert the following language immediately before informational note no. 1 in subsection 310.15(B)(3)(a):
"No more than nine current-carrying conductors shall be permitted to be installed in a raceway other than nipples."
2. Revise table 310.15(B)(3)(a) to read:
Number of Current- Carrying Conductors | Percent of Values in Table 310.15(B)(16) through Table 310.15(B)(19) as Adjusted for Ambient Temperature if Necessary |
4 – 6 | 80 |
7 – 9 | 70 |
(Amend Coun. J. 4-10-19, p. 100029, Art. VI, § 2)
The provisions of Article 314 of NFPA 70 are adopted by reference with the following modification:
1. Revise section 314.3 by deleting Exception No. 1 and Exception No. 2.
(Amend Coun. J. 1-23-19, p. 94952, Art. I, § 18)
The provisions of Article 320 of NFPA 70 are adopted by reference with the following modifications:
1. Revise section 320.10 to read:
"Uses Permitted. Type AC cable shall be permitted to be installed as specified in 320.10(A) or (B).
(A) Existing Installations. Except where otherwise specified in this Code and where not subject to physical damage, listed Type AC cable with listed fittings and not exceeding 7.62 m (25 ft) in length between junction boxes shall be permitted to be installed for branch circuits in concealed work fished into existing walls, partitions, floors, or hard surface ceilings where other work does not require or include removal of the existing finished surface.
(B) Exposed Work. For exposed work only under the following conditions:
(1) In lengths not more than 1.83 m (6 ft), at terminations where flexibility is necessary;
(2) In lengths not more than 1.83 m (6 ft) in accessible, but not habitable, attics and roof spaces where installed in accordance with 320.12;
(3) In lengths not greater than 1.83 m (6 ft), below the basement ceiling joists where it is necessary to connect a cabinet or junction box."
2. Revise section 320.12 to read:
"Uses Not Permitted. Type AC cable shall not be used for any installation not permitted in 320.10."
The provisions of Article 330 of NFPA 70 are adopted by reference with the following modifications:
1. Revise section 330.10 to read:
"Uses Permitted.
(A) Existing Installations. Except where otherwise specified in this Code and where not subject to physical damage, listed Type MC cable with listed fittings and not exceeding 7.62 m (25 ft) in length between junction boxes shall be permitted for branch circuits in concealed work fished into existing walls, partitions, floors, or hard surface ceilings where other work does not require or include removal of the existing finished surface.
(B) Exposed Work. For exposed work only under the following conditions:
(1) In lengths not more than 1.83 m (6 ft), at terminations where flexibility is necessary;
(2) In lengths not greater than 1.83 m (6 ft) in accessible, but not habitable, attics and roof spaces where installed in accordance with 320.23;
(3) In lengths not greater than 1.83 m (6 ft), below the basement ceiling joists where it is necessary to connect a cabinet or junction box."
2. Revise section 330.12 to read:
"Uses Not Permitted. Type MC cable shall not be used for any installation not permitted in 330.10."
The provisions of Article 334 of NFPA 70 are adopted by reference with the following modifications:
1. Revise section 334.10 to read:
"Uses Permitted. Type NM and Type NMC cables shall be permitted to be used in the following:
(1) Temporary wiring for branch circuits as permitted in 590.4(C)
(2) Temporary wiring as permitted for feeders as permitted in 590.4(B)
(3) Limited extensions to knob-and-tube lighting or appliance branch circuits in existing dwelling units in buildings not exceeding three stories in height."
2. Revise section 334.12 to read:
"Uses Not Permitted.
(A) Types NM, and NMC. Types NM and NMC cables shall not be used for any installation not permitted in 334.10.
(B) Type NMS. Type NMS cables shall not be used."
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