Wiring methods & switches part 1
- 1. I. Cable Wiring Methods Armored Cable (Type AC) - a fabricated assembly of insulated conductors in a flexible metallic enclosure. Also known as BX Cable
- 2. I. Cable Wiring Methods Metal Clad Cable (Type MC) - a factory assembly of one or more conductors, each individually insulated and enclosed in a metallic sheath of interlocking tape, or a smooth or corrugated metallic tube.
- 3. I. Cable Wiring Methods How can I tell the difference between Armored Cable and Metal-Clad cable, since they both have the same outside appearance? – Type AC cable will always have a 16 AWG aluminum bond wire under the armor, and the individual insulated conductors will each have a kraft paper wrap. Type MC cable does not contain either of these items and has an overall plastic wrap over the insulated circuit conductors
- 4. I. Cable Wiring Methods Mineral Insulated, Metal Sheathed Cable (Type MI) - a factory assembly of one or more conductors, insulated with a highly compressed refractory mineral and enclosed in liquidtight and gastight continuous copper or alloy steel sheath.
- 5. I. Cable Wiring Methods Nonmetallic- sheathed Cable (Type NM & NMC) - a factory assembly of two or more insulated conductors having an outer sheath of moisture- resistance, flame- retardant, nonmetallic metal - commonly used in One and Two family dwelling, but cannot be used in structures exceeding three floors.
- 6. I. Cable Wiring Methods Shielded Nonmetallic Sheathed Cable (Type SNM) - a factory assembly of two or more insulated conductors, in an extruded core of moisture-resistant, flame-resistant nonmetallic material, covered with an overlapping spiral metal tape and wire shield and jacketed with an extruded moisture, flame, oil, corrosion, fungus and sunlight resistant nonmetallic material.