2. The ampacity of each individual conductor is sufficient to carry the entire load current shared by the parallel conductors

3. The overcurrent protection is such that the ampacity of each individual conductor will not be exceeded if one or more of the parallel conductors become in advertently disconnected

Equipment Grounding Conductors

Bare, covered, or insulated grounding conductors will be permitted. Individually covered or insulated grounding conductors will have a continuous outer finish that is either green or green with one or more yellow stripes.

Exception No. 1: An insulated or covered conductor larger than No. 6 will be permited, at the time of installation, to be permanently identified as a grounding conductor at each end and at every point where the conductor is accessible. Identification will be accomplished by one of the following means:

1. Stripping the insulation or covering from the entire exposed length

2. Coloring the exposed insulation or covering green

3. Marking the exposed insulation or covering with green colored tape or green colored adhesive labels

Exception No. 2: Where the conditions of maintenance and supervision assure that only qualified persons will service the installation, an insulated conductor in a multiconductor cable will be permitted, at the time of installation, to be permanently identified as a grounding conductor at each end and at every point where the conductor is accessible by one of the following means:

1. Stripping the insulation from the entire exposedlength

2. Coloring the exposed insulation green

3. Marking the exposed insulation with green tape or green colored adhesive labels

The following paragraphs discuss conductors in vertical conduits. You may not work very much with multistory buildings but the knowledge is very important. Conductors in vertical conduits must be supported within the conduit system, as shown in table 5-2.

The following methods of supporting cables will satisfy NEC requirements:

1. Approved clamping devices are constructed of or use insulated wedges inserted in the ends of the

Table 5-2. - Spacing of Vertical Conductors Support