10.9.1 WIRING METHODS

10.9.1.1 HAZARDS

Unsafe wiring methods can cause electrical injury or fire hazards.

R&D work may require the use of wiring methods that are not anticipated in the NEC. These methods may not be consistent with normal commercial and industrial wiring methods, and should be reviewed by the AHJ for approval.

Table 10-1. Controlled Environment Exposure Limits

NEC Article 305 "Temporary Wiring," requires removal of temporary wiring upon completion of the experiment for which it was installed.

An overly strict interpretation can obstruct the scientific objectives of the R&D configuration, but if a liberal interpretation is allowed, there is a possibility that unsafe wiring methods will be used. The AHJ must consider programmatic needs without sacrificing personnel safety.

Table 10-2. Uncontrolled Environment Exposure Limits