CMP Cable (Plenum Rated Cable)
Full Name: Communications Plenum Cable.
CMP cable, the highest fire-safety-rated cable, is specifically designed for installation in air handling (plenum) spaces. Since these spaces circulate air throughout a building, they can quickly spread toxic smoke or flames from a fire. CMP cable is constructed with special materials that severely limit flame spread and produce minimal smoke, making it a critical component for meeting strict building code requirements in such environments.
- Key Characteristic: This is the highest fire safety rating. It is designed with special materials (often FEP or PTFE) that produce very low smoke and are highly flame-retardant. It passes a stringent test (UL 910/NFPA 262) measuring flame spread and smoke density.
- Typical Use: Installed in air handling spaces (plenums), such as the open space above a suspended ceiling or below a raised floor used for air circulation. This is crucial because toxic smoke from a burning cable could spread rapidly through a building’s ventilation system.
Specification
24AWGX1PAIR+22AWGX2C
| Item Name | 24AWGX1PAIR | 22AWGX2C |
| Conductor: | TS7/0.20±0.007 | TS7/0.254±0.007 |
| Insulation Diameter: | 1.06±0.10 | 1.25±0.10 |
| Jacket Overall Diameter: | 4.90±0.20 |
24AWGX1PR / 24AWGX2PR / 24AWGX3PR / 24AWGX4PR
| Item Name | Conductor | Insulation Diameter | Jacket Overall Diameter |
| 24AWGX1PAIR | TS7/0.20±0.007 | 1.06±0.10 | 3.50±0.20 |
| 24AWGX2PAIR | TS7/0.20±0.007 | 1.06±0.10 | 4.40±0.20 |
| 24AWGX3PAIR | TS7/0.20±0.007 | 1.06±0.10 | 5.20±0.30 |
| 24AWGX4PAIR | TS7/0.20±0.007 | 1.06±0.10 | 5.70±0.30 |