Prestressed anchor construction shall comply with what are the requirements?

1, by the anchoring section prestressed anchor, anchor head and free section constituted by the anchor head pad pier, steel plate and anchorage components.
2, tendons anchored within the segment should be set at intervals of 1.5m ~ 2.0m spacer frame. Tendons protective layer thickness of not less than 20mm, the thickness of the protective layer temporary anchor tendons of not less than 10mm.