Communication lines KJ76N-L lightning rod ore lightning rod, communication line lightning rod, the KJ76N-L communication line the lightning rod KJ76N-L communication lines lightning rod is used to KJ76N coal mine safety monitoring system communication equipment lightning machine spikes surge protection, the equipment used plastic shell, do good sealing, compact appearance, and easy to install wiring with dust, moisture, put corrosion and other functions, this device long life, good transmission performance, speed and other characteristics of the technical parameters of the nominal conduction voltage: 14V impulse discharge voltage: ≤ 800V limit voltage: ≤ 30V Case material: plastic shell protection grade: IP54 Dimensions: 225 * 125 * 75