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Extra Low Voltage (ELV)

Former Community Member over 4 years ago

Guys,

BS7671:2018 is classing cables extra low voltage (ELV) as an operating voltage not exceeding 50Vac or 120V ripple-free dc.

BS7671 goes on to further categorize ELV cables into SELV, PELV, FELV.

For single core green/yellow insulated equipotential bonding cables lets say originating from an earth bar and bonding some structural steel work, are these classed as FELV under BS7671:2018 ?

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0 Sparkingchip over 4 years ago

Mike M:

For single core green/yellow insulated equipotential bonding cables lets say originating from an earth bar and bonding some structural steel work, are these classed as FELV under BS7671:2018 ?

They are main protective bonding conductors; refer to BS 7671:2018 regulation 411.3.1.2

Andy Betteridge
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0 Sparkingchip over 4 years ago

Mike M:

For single core green/yellow insulated equipotential bonding cables lets say originating from an earth bar and bonding some structural steel work, are these classed as FELV under BS7671:2018 ?

They are main protective bonding conductors; refer to BS 7671:2018 regulation 411.3.1.2

Andy Betteridge
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Extra Low Voltage (ELV)

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