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What Are The Specifications For The Ground Wire For Optic Splice Cabinet?


In order to ensure that the Optic Splice Cabinet is safe to use, the corresponding part of the Optic Splice Cabinet will be equipped with a ground wire device so that the remaining voltage of the Optic Splice Cabinet can be transmitted to the earth at the first time! So there are very strict standards and requirements for Optic Splice Cabinet's ground wire specifications and layout.
First, Optic Splice Cabinet the basic composition:
(1) Grounding bodies: One or a group of conductors that are in close contact with the earth and are electrically connected to the earth.
(2) exposed conductive parts: electrical equipment can reach the conductive part. Normal is not charged, the fault may be charged, usually a metal case for electrical equipment.
(3) main ground terminal board: a building or part of the building within a variety of grounding (such as working grounding, protective grounding) and the equipotential bonding terminal of the combination of terminals. Such as arranged in rows, is called the main ground terminal block.
(4) Protective line (PE): Conductor that electrically connects any of the exposed conductive parts, the main ground terminal board, the grounding body, and any part of the power supply ground point (or artificial ground point). Conductors that connect multiple exposed conductive parts are known as protective lines.
(5) Grounding wire: Connect the main ground terminal board or the exposed conductive part directly to the protective wire of the grounding body. The ground wire for connecting multiple ground terminal boards is called a grounded trunk. Optic Splice Cabinet
(6) equipotential bonding: refers to the exposed conductive part and the device outside the conductive part of the potential substantially equal to the electrical connection.
Second, what parts of the Optic Splice Cabinet need to be grounded:
(1) phase line (L): the transmission of electrical energy conductor, under normal circumstances do not ground.
(2) Neutral (N): Conductor connected to the system neutral and capable of delivering electrical energy.
(3) protection of neutral (PEN): both the protection of the line and the role of the conductor line.
(4) power ground: the power can be grounded (usually neutral) to ground.
Third, in view of ensuring the safety of the product, Optic Splice Cabinet in the use of the process, we must always keep the cabinet ground.
1, Optic Splice Cabinet internal ground "bus" (grounding row, PE row) and power ground or grounding system directly connected;
2, the metal Optic Splice Cabinet itself should be "box grounding bolt" (with PE logo), the bolt must be used copper wire or special preparation of flexible cable and has been connected to the PE row;
3, and Optic Splice Cabinet connected to the metal threading pipe must also have a reliable electrical connection with the box "simple can be galvanized round steel, flat steel welding connected)
4, Optic Splice Cabinet internal electrical components to be part of the ground, but also with the PE row connection:
5, all need to be out of the circuit in the ground, are derived from the PE row.
Now with the surge in household electricity consumption, the use of home Optic Splice Cabinet is becoming more and more popular. But because of neglect management, maintenance, caused a lot of electrical fires. From the scene can be found, Optic Splice Cabinet hanging hanging installation, a serious violation of the DL / T499-2001 "rural low-voltage power technical regulations" "outdoor Optic Splice Cabinet should be firmly installed in the bracket or on the ... ... box (cabinet) should be dry , Clean, good access to the inlet and outlet, insulation support, installation and accessories installed solid and reliable ... ... "refers to the provisions. The Optic Splice Cabinet, which seems to be no harm, does not guarantee its safe distance when it is on a high vehicle access road or maintenance personnel, and is likely to touch the Optic Splice Cabinet, which can cause inconvenience and danger. Light equipment damage, causing the user to hear, affecting the user's normal electricity; heavy people may cause electric shock damage to pedestrians, causing personal injury accidents, more likely to lead to line trips, resulting in regional power outages. Not only to the regional grid operation caused great security risks, but also to the surrounding residents of life and property safety caused great harm.