The lighting option of “Lighting chosen but calculation not carried out” is not available. Why?
The lighting option of “Lighting chosen but calculation not carried out” is not available for zones which have been assigned certain activities classed as office, industrial and storage areas. For these areas, Approved Document L2a states that an average luminaire lumens per circuit watt calculation must be carried out. In this case the user can specify the “Full lighting design carried out” option. In the case where a full design has not been carried out, the option “Lighting Parameters not available” can be used for these areas.
