On-Site Guide (BS 7671:2018+A2:2022) (Electrical Regulations)

Product Information

Individual PEIs are considered to be an electrical installation (for example, a private house or workshop) that can either produce or consume electrical energy. Three operating modes are considered for individual PEIs. These are: This NICEIC Guide is intended for contractors who carry out electrical installation work indwellings, including houses and flats. Regulation 422.1 (Precautions where particular risks of fire exist. General) now introduces requirements for the fire safety design of the building(s) to be documented. Regulation 422.2 (Conditions for evacuation in an emergency) introduces separate requirements for escape routes and a new concept of ‘protected escape routes’. Reference to conditions BD2, BD3, and BD4 have been deleted. Chapter 44 Protection against voltage disturbances and electromagnetic disturbances BS 7671:2018+A2:2022 is the most widely accepted way to demonstrate compliance with the applicable legislation, and so if you are an electrical professional, you need to ensure that you are working to the new changes introduced in the latest version of this standard. What’s new about BS 7671:2018+A2:2022? The result is BS 7671:2018+A2:2022 - a modern standard that improves fire and end-user safety and increases sustainability. The previous version of this standard - BS 7671:2018+A1:2020 - is being withdrawn on 27 September 2022. All electrical installations must comply with BS 7671:2018+A2:2022 from 28 September 2022.

On-Site Guide (BS 7671:2018+A2:2022) (Electrical Regulations)

NOTE: It is essential to liaise with the distribution network operator (DNO) when planning embedded generator installations. Relevant documents include the Electricity Safety, Quality and Continuity Regulations (ESQCR) 2002, Engineering Recommendation G98, Engineering Recommendation G99 and the Distribution Code. More information is available from the Energy Networks Association (ENA). Conclusion BS 7671:2018+A2:2022 includes several new updates that are considered essential for anyone engaged in electrical installation activities. This new Chapter within BS 7671 covers energy efficiency measures, the interface with the smart grid, the management of electricity consumption, the management of renewable sources of electricity, and energy storage. This is a complex area and this article only mentions some of the many requirements concerning prosumers’ electrical installations (PEIs). Collective PEIs are considered to be several consuming electrical installations connected to the same public distribution network and sharing one common set of local power supplies and energy storage equipment. Regulation 443.4 for determining if protection against transient overvoltages is needed has been redrafted.

Regulation 443.4.2 requires protection against overvoltages to be considered in the case of equipment likely to produce switching overvoltages or disturbances and gives conditions. The 18th Edition Amendment 2 IET Wiring Regulations contains important new information for all electrical installers and engineers.

Requirements for Electrical Installations

The guidance is based on the requirements of BS 7671: 2018+A2:2022 Requirements for Electrical Installations, and references to Regulation numbers are to those contained in that Standard. Additional Details Author A collective PEI could, for example, be a group of single private houses, a group of flats in a building, or a group of small shops in a shopping centre with a common electrical power supply from one separate unit (generator/energy storage) producing energy and from the grid/supply network. Three operating modes are considered for collective PEIs. These are: A PEI is considered to be a low-voltage electrical installation connected (or not) to a public distribution network (the grid), able to operate with local power supplies (for example, PV panels or wind turbines), and/or with local storage units (for example, batteries). It monitors and controls the energy from the connected sources delivering it to current-using equipment (for example, motors, heating, lighting, and appliances such as washing machines, etc), and/or local storage units (for example, batteries), and/or the public distribution network. Further technical issues include requirements concerning interaction with the public network, energy storage, designing for flexibility of load and generators, electric vehicle (EV) charging, and selectivity between current protective devices.The concept of the PEI has been developed to answer the needs of the end-user. For example, where a PEI has a storage capability, the user could take advantage of low demand to store energy when its price may be lower. Except for single dwelling units, for all other cases where the consequences of an overvoltage of atmospheric origin are considered to be intolerable, a risk assessment has to be performed to determine if protection against transient overvoltages is required. Calling all those involved with electrical installations, we’ve made major amendments to the key national standard on electrical installations.