Magma Resources Engineering Sdn Bhd
Several factors have to be considered before the actual installation work to be done for residential, commercial or industrial wiring. These factors include type of building construction, type of ceiling, wall and floor construction, wiring methods, installation requirements, etc.
Most modern homes use nonmetallic (NM) cable that consists of two or more wires wrapped inside the colored sheathing mentioned previously. The package of wires usually contains one or more hot wires plus a neutral and a ground. To accommodate wiring in an older home or if your wiring just needs work, you can splice the old wires with new NM cable using a junction box that protects wire connections. The larger circuit wires carry circuit voltage that can be really dangerous to touch. If you don’t know what kind of wires you have, consider them all to be dangerous.
Traditionally, the lighting and appliance panelboard is viewed as the power distribution component that is closest to the load and contains mostly single-phase overcurrent devices feeding lights and receptacles, hence the name. The power panel is more of an intermediary component of the power distribution system and contains mostly three-phase loads, whether connected directly to a large 3 phase piece of equipment or as a three-phase feeder to a downstream panelboard.