Earthing Of Relay And Bonding Of Sensor Cable Shield; Earthing Of Relay - ABB REF601 Applications Manual

1MDU07212-YN 1MDU07212 1MDU07212 1MDU07212 YN Rev. C Rev. C Rev. C
6.10 6.10 6.10
6.10.1 6.10.1 6.10.1 6.10.1
REF601 / REJ601 REF601 / REJ601 REF601 / REJ601 REF601 / REJ601 REF601 / REJ601 REF601 / REJ601
Application Manual Application Manual Application Manual Application Manual Application Manual Application Manual
Earthing of relay and Earthing Earthing Earthing Earthing Earthing of relay and of relay and of relay and of relay and Bonding of sensor cable of relay and of relay and of relay and
shield shield shield shield
Earthing

Earthing of relay

Earthing Earthing Earthing of relay of relay of relay of relay
The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth The earth lead must be at least 6.0 mm2. If the length of the earth
lead lead is long lead long, the cross section of the wire must be increased. long
To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is To improve the immunity against high frequency distortion it is
recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead. recommended to use flat braided copper wire as the earth lead.
To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead: To connect a separate earth protection lead:
1. 1. Loosen the protective earth screw to connect a separate earth protection lead. Loosen the protective e Loosen the protective e Loosen the protective e Loosen the protective e Loosen the protective e Loosen the protective e Loosen the protective e
Figure Figure Figure 34 34: Location of protective earth screw Location of protective earth screw Location of protective earth screw Location of protective earth screw Location of protective earth screw Location of protective earth screw Location of protective earth screw Location of protective earth screw Location of protective earth screw Location of protective earth screw Location of protective earth screw
The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that extra The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that The earth lead should be as short as possible but notice that
length is required for door mounting. length is required for door mounting. length is required for door mounting. length is required for door mounting. length is required for door mounting. length is required for door mounting. length is required for door mounting. length is required for door mounting. length is required for door mounting. length is required for door mounting. length is required for door mounting. length is required for door mounting. length is required for door mounting.
Each IED must have its own earth lead connected to the earth Each IED must have its Each IED must have its Each IED must have its Each IED must have its Each IED must have its Each IED must have its Each IED must have its Each IED must have its
circuit connector circuit connector circuit connector circuit connector circuit connector. circuit connector circuit connector
2. 2. Connect the earth lead to the earth bar. Connect the earth lead to the earth bar. Use either stripped wire screwed Connect the earth lead to the earth bar. Connect the earth lead to the earth bar. Connect the earth lead to the earth bar. Connect the earth lead to the earth bar. Connect the earth lead to the earth bar. Connect the earth lead to the earth bar. Connect the earth lead to the earth bar. Connect the earth lead to the earth bar. Connect the earth lead to the earth bar. Connect the earth lead to the earth bar. Connect the earth lead to the earth bar.
between a washer cup and the protective between a washer cup and the protective between a washer cup and the protective between a washer cup and the protective between a washer cup and the protective between a washer cup and the protective between a washer cup and the protective between a washer cup and the protective between a washer cup and the protective earth screw or a ring between a washer cup and the protective between a washer cup and the protective between a washer cup and the protective between a washer cup and the protective between a washer cup and the protective
Select a suitable ring Select a suitable ring Select a suitable ring Select a suitable ring Select a suitable ring Select a suitable ring Select a suitable ring Select a suitable ring-lug to fit under the M4 screw
Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable Bonding of sensor cable
, the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased. , the cross section of the wire must be increased.
arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead. arth screw to connect a separate earth protection lead.
own earth lead connected to the earth own earth lead connected to the earth own earth lead connected to the earth own earth lead connected to the earth own earth lead connected to the earth own earth lead connected to the earth own earth lead connected to the earth own earth lead connected to the earth own earth lead connected to the earth own earth lead connected to the earth own earth lead connected to the earth own earth lead connected to the earth
Use either stripped wire screwed Use either stripped wire screwed Use either stripped wire screwed Use either stripped wire screwed Use either stripped wire screwed Use either stripped wire screwed Use either stripped wire screwed Use either stripped wire screwed Use either stripped wire screwed Use either stripped wire screwed Use either stripped wire screwed
arth screw or a ring-lug. arth screw or a ring arth screw or a ring arth screw or a ring arth screw or a ring arth screw or a ring arth screw or a ring
lug to fit under the M4 screw lug to fit under the M4 screw lug to fit under the M4 screw lug to fit under the M4 screw lug to fit under the M4 screw lug to fit under the M4 screw lug to fit under the M4 screw lug to fit under the M4 screw. lug to fit under the M4 screw lug to fit under the M4 screw
Section 6 Section 6 Section 6 Section 6 Section 6 Section 6
Installation Installation Installation Installation Installation Installation
extra extra
lug.
71 71