General Regulations Archives

Earth Electrodes: What Types Are Recognised?

|Date: 22 June, 2018

Earth Electrodes: What Types Are Recognised?

Where the electricity distributor does not provide a means of earthing for an installation, or where requ ...

Where the electricity distributor does not provide a means of earthing for an installation, or where required for regulatory reasons, an earth electrode should be installed and the installation should ...

22 June, 2018
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Legacy Circuit Breakers: What Value?

|Date: 20 June, 2018

Legacy Circuit Breakers: What Value?

Stroma Certification provides some guidance on values of earth loop impedance (Zs) for legacy circuit bre ...

Stroma Certification provides some guidance on values of earth loop impedance (Zs) for legacy circuit breakers. A frequent enquiry Stroma Certification receives is regarding the maximum values of eart ...

20 June, 2018
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Fire Detection and Alarm Systems in Dwellings

|Date: 17 April, 2018

Fire Detection and Alarm Systems in Dwellings

The experts at NICEIC fill you in on everything you need to know. A ﬁre detection and alarm system can si ...

The experts at NICEIC fill you in on everything you need to know. A ﬁre detection and alarm system can signiﬁcantly improve the safety of occupants in dwellings by operating automatically and alerting ...

17 April, 2018
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Identification of Electrical Wiring

|Date: 31 March, 2018

Identification of Electrical Wiring

Identiﬁcation of electrical wiring should be clear and accurate so that the risk of injury or damage is m ...

Identiﬁcation of electrical wiring should be clear and accurate so that the risk of injury or damage is minimised. This article looks at requirements relating to the identiﬁcation of conductors contai ...

31 March, 2018
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Hybrid Ring/Radial Final Circuits: Are They Acceptable?

|Date: 7 March, 2018

Hybrid Ring/Radial Final Circuits: Are They Acceptable?

The experts at ELECSA share their technical advice. The NICEIC helpline is occasionally asked whether a r ...

The experts at ELECSA share their technical advice. The NICEIC helpline is occasionally asked whether a ring ﬁnal circuit has to be supplied directly from a protective device in the distribution board ...

7 March, 2018
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Requirements For The IP Rating Of Trunking

|Date: 3 March, 2018

Requirements For The IP Rating Of Trunking

In this bulletin the ECA’s technical team looks at the requirements for the IP rating of trunking. ...

In this bulletin the ECA’s technical team looks at the requirements for the IP rating of trunking. The trunking currently being used in electrical installations typically has an International Pr ...

3 March, 2018
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The Impact of Thermal Insulation on the Current Carrying Capacity of Flat Twin and Earth Cables

|Date: 28 February, 2018

The Impact of Thermal Insulation on the Current Carrying Capacity of Flat Twin and Earth Cables

Whilst the current-carrying capacity of a cable is dependent on a number of factors, this article looks a ...

Whilst the current-carrying capacity of a cable is dependent on a number of factors, this article looks at the impact of thermally insulating materials on the current-carrying capacity of ﬂat twin and ...

28 February, 2018
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Automatic Disconnection of Supply (ADS)

|Date: 24 February, 2018

Automatic Disconnection of Supply (ADS)

The protective measure Automatic Disconnection of Supply (ADS) is used in most electrical installations t ...

The protective measure Automatic Disconnection of Supply (ADS) is used in most electrical installations to provide protection against electric shock. This article provides an overview of how ADS is ac ...

24 February, 2018
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Heights of Electrical Equipment in Dwellings

|Date: 20 February, 2018

Heights of Electrical Equipment in Dwellings

The aim of this topic is to explain the requirements of BS 7671, Part M of the Building Regulations for E ...

The aim of this topic is to explain the requirements of BS 7671, Part M of the Building Regulations for England and Wales and BS 8300: 2009 (Design of buildings and their approaches to meet the needs ...

20 February, 2018
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Protective Multiple Earthings (PME)

|Date: 18 February, 2018

Protective Multiple Earthings (PME)

As the majority of low voltage supplies to both new and existing electrical installations are connected t ...

As the majority of low voltage supplies to both new and existing electrical installations are connected to a PME earthing terminal, this article discusses the operating characteristics of this particu ...

18 February, 2018
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