Installing a grounding system

When installing a grounding system keep the basic components in mind. Consider the soil … where the system will be installed. You will have to create ditch to …. the system. The condition of the … will determine how you proceed with this step.

Consider the types of … you will use for the installation. A ground wire is a typical part of the system. Also, bonding wire and a footer are …. elements. A panel bond is necessary to connect the …. system to the electrical panel.

You must be aware of resistance between terminals. The continuous current of … must also be kept in mind. You should know the current level that will drive through a ….

Remember to avoid interference by keeping certain wires parallel to each other. Also, certain … must not be placed within its sphere of influence.

Ex.5. Match the words (1-10) with their definitions (A-J).

1. soil condition 6. bonding wire

2. ditch 7. resistance

3. ground wire 8. drive (v)

4. footer 9. parallel

5. panel bond 10.sphere of influence

1. a wire which is grounded and completes a circuit if a neutral wire fails;

2. a wire that connects the panel to the grounding system;

3. they run in the same direction and do not cross;

4. the amount of voltage applied on two resistor terminals compared to the current that circulates between them;

5. it is connected to the grounding system using rebar;

6. to cause movement through some sort of force;

7. a narrow trench that is made in the ground;

8. a wire connected to the ground system and used to help from an electrically conductive path;

9. the texture of the soil, such as dry, rocky or wet;

10. an electrical current that flows from the ground rod and into the soil that surrounds it.

Ex.6. Find the synonyms from the text to the underlined words.

1. The electrician measured the amount of current that moves by force through the wire.

2. An electrical system is not stable without a neutral wire connected to the earth.

3. The wires should be running in the same direction but not crossing to avoid short circuits.

4. We need to replace the part that connects the service panel to the grounding system.

Ex.7. Fill in the gaps in the sentences with the words from the box.

ditch, sphere of influence, soil condition, footer, bonding wire, resistance

1. We must dig a (1)… to install the grounding system.

2. This (2)… should be connected to the grounding system with rebar.

3. The short circuit occurred because the (3)… was not installed correctly.

4. Make sure this ground system is outside the (4)… of the other system.

5. Do you know how strong the (5)… of this electrical terminal is?

6. Check the (6)… before you start digging.

Ex.8. Listen to and complete the conversation between two electricians.

Electrician 1. Did you check the (1)… in the installation area?

Electrician 2. Yes, I did. The soil isn’t full of rocks and it’s not dry either. It’s wet, but (2)….

Electrician 1. Do you think we can (3)… without a problem?

Electrician 2. Yes, I do. It’s a (4)… for the installation.

Electrician 1. Have you got (5)… to get started?

Electrician 2. I think so. We’ve got the ground wire and the (6)….

Ex.9. Translate the sentences into English.

1. Железнодорожники, работающие с электричеством, установили систему заземления.

2. Электроток, выходящий из поезда, поступает в рельсы.

3. Рельсы, идущие в одном направлении, соединены друг с другом.

4. Неисправный участок, изолированный при помощи прерывателей, был отремонтирован.

5. Металлические конструкции, соединенные с рельсами, могут быть опасны.

6. Система заземления, установленная на железной дороге, была необходима.

7. Электрик, измеряющий электроток, обнаружил дефект провода.

8. Причины, вызывающие электровозгорание, могут быть разными.

9. Правила безопасности, снижающие риски, очень важны.

Ex.10. Make up dialogues:

• explain what grounding system is;

• why grounding system is important;

• what devices or materials you need;

• how you install grounding system.