![]() ![]() The details include wording that BS 7671 is intended to be applied to all electrical installations, although it also specifies that it may need to be supplemented by other British or Harmonized Standards.īS 5266 and BS EN 1838 for emergency lighting are included in Regulation 110.1.3 (ii). As with fire detection and fire alarm systems, emergency lighting is sometimes seen as not having to comply with the requirements for BS 7671 because of the reference within Regulation 110.1.3. These are set out in three levels, as indicated in Fig 1, comprising of the base document, the system standards and the product standards.Īs you would expect for an emergency lighting system, the requirements of BS 7671 are an integral part of the range of standards referenced in the CoP. Within BS 5266-1 there is a further list of normative references, which include a range of BS, BS EN, BS EN ISO, IEC, BS ISO standards that are essential to how emergency lighting systems are designed, installed and commissioned. C) Standby lighting, powered by an alternative power supply, which provides sufficient lighting to operate the premises normally in the event of a total failure of the main power supply.
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