Frequently Asked Questions

Providing a Range of Power Management and Control Services Since 1979

See below for a list of questions that we get asked frequently here at Saftronics.

What is an ARC fault?

An ARC fault occurs when the air or insulation between two conductors becomes ionised (due to a high voltage between the conductors). Ionised air is a conductor and a current – usually excessive – will flow between the conductors. In the case of physical insulation the effect may be permanent

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What are Forms of Separation – Form 4b Type 7

LV Switchgears Form 4b Type 7Assemblies require the termination of all associated external conductors, both line and neutral, within the device. Separate common neutral bars do not fulfil this requirement.Form 4b Type 7 also requires the separation of;Busbars from devicesDevices from each otherTerminals for external conductors from other terminals and from

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What are Forms of Separation – Form 4b Type 6 (Group Mounted)

Form 4b Type 6 (Group Mounted)Assemblies require the termination of all associated external conductors, both line and neutral, within the device. Separate common neutral bars do not fulfil this requirement.Form 4b Type 6 also requires the separation of;Busbars from devicesDevices from each otherTerminals for external conductors from other terminals and

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What are Forms of Separation – Form 4b Type 6 (Compartmentalised)

LV Switchgear Form 4b Type 6 (Compartmentalised) Assemblies require the termination of all associated external conductors, both line and neutral, within the device. Separate common neutral bars do not fulfil this requirement.Form 4b Type 6 also requires the separation of;Busbars from devicesDevices from each otherTerminals for external conductors from other terminals

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What are Forms of Separation – Form 4b Type 5

Form 4b Type 5Assemblies require the termination of all associated external conductors, both line and neutral, within the device. Separate common neutral bars do not fulfil this requirement.Form 4b Type 5 also requires the separation of;Busbars from devicesDevices from each otherTerminals for external conductors from other terminals and from the

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What are Forms of Separation – Form 4b Type 4

Form 4b Type 4Assemblies require the termination of all associated external conductors, both line and neutral, within the device. Separate common neutral bars do not fulfil this requirement.Form 4b Type 4 also requires the separation of;Busbars from devicesDevices from each otherTerminals for external conductors from other terminals and from the

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What are Forms of Separation – Form 4a Type 3

Form 4a Type 3Assemblies require the termination of all associated external conductors, both line and neutral, within the device. Separate common neutral bars do not fulfil this requirement.Form 4a Type 3 also requires the separation of;Busbars from devicesDevices from each otherTerminals for external conductors from other terminals and from the

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What are Forms of Separation – Form 4a Type 2

Form 4a Type 2Assemblies require the termination of all associated external conductors, both line and neutral, within the device. Separate common neutral bars do not fulfil this requirement.Form 4a Type 2 also requires the separation of;Busbars from devicesDevices from each otherTerminals for external conductors from other terminals and from the

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What are Forms of Separation – Form 4a Type 1 (Group Mounted)

Form 4a Type 1 (Group Mounted)Assemblies require the termination of all associated external conductors, both line and neutral, within the device. Separate common neutral bars do not fulfil this requirement.Form 4a Type 1 also requires the separation of;Busbars from devicesDevices from each otherTerminals for external conductors from other terminals and

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Get started on your next project today by contacting us today.

Contact

+44 (0) 113 2457170

sales@saftronics.co.uk

Saftronics Limited ,Pearson Street, Leeds, West Yorkshire, LS10 1BQ, UK, Company Number – 01935773

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