Technical Booklet R Access to and Use of Buildings·Page 50·5.50
Hearing enhancement system - electrical interference
Hearing enhancement systems must be protected from extraneous electrical interference from artificial lighting installations.
A hearing enhancement system should not be subject to extraneous electrical interference from any artificial lighting installation.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/Technical Booklet R - Access to and Use of Buildings.pdf