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Subchapter 5. Electrical Safety Orders
Group 1. Low-Voltage Electrical Safety Orders
Article 16. Open Wiring
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§2420.4. Conductor Supports.

(a) Conductors smaller than No. 8 shall be rigidly supported on noncombustible, nonabsorbent insulating materials and may not contact any other objects. Supports shall be installed as follows:

(1) Within 6 in. (152 mm) from a tap or splice;

(2) Within 12 in. (305 mm) of a dead-end connection to a lampholder or receptacle; and

(3) At intervals not exceeding 4.5 ft. (1.37 m), and at closer intervals sufficient to provide adequate support where likely to be disturbed.

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. New section filed 5-5-2008; operative 5-5-2008. Submitted to OAL for printing only pursuant to Labor Code 142.3(a)(3) (Register 2008, No. 19).

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