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Bonding both sides of an swa cable

MrJack96
Is it necessary to bond both sides of an armoured cable if it’s not being used as a CPC and if you bond it at the supply side of an electrical motor starter panel is there anything in the regs where it should be bonded too or can it just be bolted to the chassis stud using a 6mm fly lead off the gland. 


thanks for your help in advance guys.
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    MrJack96, why do you keep referring to "bonding"?


    If I understand the situation correctly, you have a length of SWA which connects a panel to a motor. Both the panel and the motor have exposed conductive parts.


    Odd though it may seem to a lay person, the armour is not just providing mechanical protection so it must have a sound connexion to an earthing point at the supply end (i.e. within the panel) so that ADS may function correctly if the armour (and a live conductor) is pierced.


    The exposed conductive parts of the motor need to be earthed. In this instance, a core of the SWA has been used (properly identified of course) as the CPC. The armour wires could have been used instead. Although it would be good practice to make off the SWA into a gland so that the armour is connected to the motor, this is not essential because the motor already has a CPC.


    Whether banjos, piranha nuts, and fly leads are required to make sound connexions is another matter entirely. There have been numerous threads about this in the past.
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  • 0
    MrJack96, why do you keep referring to "bonding"?


    If I understand the situation correctly, you have a length of SWA which connects a panel to a motor. Both the panel and the motor have exposed conductive parts.


    Odd though it may seem to a lay person, the armour is not just providing mechanical protection so it must have a sound connexion to an earthing point at the supply end (i.e. within the panel) so that ADS may function correctly if the armour (and a live conductor) is pierced.


    The exposed conductive parts of the motor need to be earthed. In this instance, a core of the SWA has been used (properly identified of course) as the CPC. The armour wires could have been used instead. Although it would be good practice to make off the SWA into a gland so that the armour is connected to the motor, this is not essential because the motor already has a CPC.


    Whether banjos, piranha nuts, and fly leads are required to make sound connexions is another matter entirely. There have been numerous threads about this in the past.
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