Underground facilities
require specific separation for a variety
of reasons - future operations and maintenance,
metallic facilities may have cathodic
protection systems or simply because of the
concern of damages when excavating too close
to the facility
Are there any vertical or horizontal separation requirements with existing facilities?
- Posted:
- 3+ months ago by avdrillin...
- Topics:
- horizontal, drilling, separation, requirement
Details:
Answers (2)
A non-combustible spandrel or other non-combustible vertical construction having an overall height of 900 mm or more, extending at least 600 mm or more above the upper surface of the intervening floor, and having an FRL of 60/60/60;
A non-combustible horizontal projection (eg balcony) having an outwards projection from the external face of the wall of 1100 mm or more, an extension along the wall beyond the openings of at least 450 mm, and having an FRL of 60/60/60;
