What is the purpose of the main protective bonding conductor?

What is the purpose of the main protective bonding conductor?

What is supplementary protective bonding? A supplementary protective bonding conductor is used to connect simultaneously accessible exposed conductive parts and accessible extraneous-conductive-parts to prevent a hazardous potential difference from occurring between them.

What are bonding connections?

Electrical bonding is connecting multiple conductive components that are not intended to carry a current. This creates a conductive path between equipment, housing, panels, metal parts and other structures.

How should bonding conductors be attached?

It is important that the installation and connections of the grounding and bonding conductors are reliable. The connections or lugs should make good metal-to-metal contact to the non-electrical equipment being bonded. The conductors should be well secured to the connectors.

What is main purpose bonding?

The NEC defines bonding as, “The permanent joining of metallic parts to form an electrically conductive path that ensures electrical continuity and the capacity to conduct safely any current likely to be imposed.” As it relates to a communications system, the primary purpose of bonding is to equalize ground potential …

Where do you connect supplementary bonding?

Supplementary Bonding is the use of a slighter thinner (4mm) green and yellow copper cable to connect together all metal pipes (and possible circuits) in a particular area. This area is typically the bathroom, or any other room containing a bath or shower.

What is bonding conductor?

Bonding conductor — a conductor that connects the non-current-carrying parts of electrical equipment, raceways, or enclosures to the service equipment or system grounding conductor.”

What is bonding cable?

Cable bonding is basically the method of making electrical connection between the sheaths of two cables. If the cable sheath of two single core cable system is bonded at both the ends then the induced voltage will give rise to a circulating current.

Where do you attach bonding wire?

The bonding wire is usually a heavy copper wire fastened with brass clamps at one end to the cold water pipe and at the other end to the hot water pipe. The parts cost only about $10 and can be installed in just minutes.

What is bonding in electrical installation?

What is bonding? Bonding is used to reduce the risk of electric shocks to anyone who may touch two separate metal parts when there is a fault somewhere in the supply of electrical installation. By connecting bonding conductors between particular parts, it reduces the voltage there might have been.

What is grounding and bonding and why is it important?

The metal frames of electrical equipment are then connected to each other – this is called bonding. United, these grounds keep us safe and allow protective devices to work. A good (to great) grounding system sends the harmful energy to ground instead of having it injure people or damage equipment.

What does supplementary cross bonding do?

Supplementary bonding is the practice of connecting two conductive simultaneously accessible parts together to reduce the potential difference between the parts.

What connects the equipment grounding conductors to the grounded neutral conductors?

The Service Neutral Conductor is then connected by way of a Main Bonding Jumper (MBJ) to the metal enclosure of that main panel, which is then connected by a wire (Grounding Electrode Conductor) to earth.

What kind of wire is a grounding conductor?

An equipment grounding conductor is a wire that connects non-current-carrying metal parts such as raceways, enclosures, and the metal frames of equipment, appliances, motors, etc. back to the main bonding jumper (also referred to as a “bus link”).

Can a threaded conduit be a bonding conductor?

In some cases, conductors other than wire can be considered bonding conductors. For example, threaded metal conduit, EMT with compression fittings, and cable tray can be considered bonding conductors in certain situations, while EMT with standard single screw connections cannot.

Which is an important use of electrical bonding?

Another important use for electrical bonding is to reduce touch potential, especially in long runs of conductive cable tray. When voltage is applied to a conductor, be it a wire or anything else metallic, there will be some voltage drop across the length of the conductor based on its size, material, and length.

What do you need to know about bonding?

Bonding is accomplished when the electrician connects equipment grounding conductors to the equipment grounding terminal bar in the Service Equipment and to the grounding terminals on electrical devices and electrical boxes.