622.1 Sleeve positioning

Set sleeves clear of reinforcement and within spacing rules (232). Good positioning preserves HVM bollard clear gaps.

Plan sleeve locations early—ideally when setting out your socket or foundation geometry—so they do not clash with the rating-critical dependencies in 421. Keep sleeves outside rebar congestion and maintain cover. Maintain the clear-gap by checking offsets at the top face and through the wall to avoid skewing cable entries against the bollard shaft.

Use a simple “no-go” cage sketch: mark rebar zones, the 934 details, and sleeve centerlines with tolerances. In high-density arrays, a short dog-leg within the foundation can help route around bars without tight bends that increase duct fill ratio or sidewall pressure.

622.2 Penetration sizes

Right-size openings for cable/hoses (515). Correct sizing avoids weakening crash rated bollard sockets.

Size penetrations from a cable schedule and drive topology (hydraulic/electromechanical). Allow for gland threads, locknuts, and a gland plate. Oversizing weakens the wall and complicates sealing; undersizing forces field rework near steel, risking spalls. Where multiple services share a core, define a divider or multi-port transit to preserve wall capacity and 333 checks.

Account for bend radii, duct fill, and future spares. For hoses, consider bulkhead fittings and strain-relief brackets to avoid cyclic loads at the wall face. Document hole size, tolerance, and finish (chamfer/edge seal) on the typicals so site teams don’t guess.

622.3 Water sealing & glands

Specify IP-rated glands with seals (334, 245). Sealing keeps HVM bollard panels dry.

Choose glands to the required IP rating and environment, with compatible elastomers. Where water can stand (sumps, pits), use raised cable glands, a drip loop, and sealant back-ups. For pressure or flood risk, specify transit systems or compression seals rated to head (reference 334 drainage strategy).

Inside enclosures, add a breather drain and consider a membrane vent to reduce condensation. For long underground runs, specify water-blocking compound cables and sealed splices. Align tests with 245 drainage strategy.

622.4 Firestopping (if required)

Detail sleeves with approved systems. Firestopping maintains crash rated bollard compartmentation.

Where penetrations cross rated walls/soffits, use tested firestop systems matching substrate, service types, and movement. Keep metallic sleeves short to limit heat conduction and detail a collar/wrap as per the system. Coordinate with the enclosure’s layout & access so maintenance does not break the seal. Record system IDs in the ITP and the as-built pack (731).

If the local authority or client fire strategy demands it, add a periodic inspection line item in the 734 maintenance plan to catch damaged seals after upgrades or cable pulls.

622.5 Pull cords & draw wire

Install draw wires in every duct. Pull cords simplify HVM bollard cabling.

Every duct, sleeve, and spare sub-duct should carry a UV-stable pull cord. Add it immediately after installation and cap ends to keep them clean. Mandrel and volt-drop planning are easier when routes are proven. Agree maximum pulling tension and lubricants with the cable manufacturer.

Provide cord slack at both ends and tag the duct ID so future pulls don’t mix routes. On long runs or multiple bends, insert draw pits per 615 to keep sidewall pressure within limits.

622.6 Corrosion/galvanic isolation

Isolate dissimilar metals with sleeves/washers (364). Isolation extends crash rated bollard life.

Where stainless, galvanized, and aluminum parts meet at entries, use isolation washers, gaskets, and sleeves. Seal the annulus to keep out electrolyte. Reference 364 Galvanic Risks and pick compatible grades and sealants. Coat cut edges and repaired zinc per the coating supplier’s holiday test guidance.

In coastal or wash-down zones, specify 316 stainless glands and fasteners with dielectric barriers; avoid large area-ratio couples that accelerate galvanic corrosion. Add a rinse SOP to the O&M where wind-blown salts are likely.

622.7 Labeling & identification

Heat-shrink IDs and route tags (527). Labels accelerate HVM bollard maintenance.

Adopt a panel wiring convention (see 527) and extend it to field routes: printed ferrules, tie-on tags at entries, and durable heat-shrink on external cables. Each penetration gets a unique ID tied to the mark-up standards and evidence templates.

Keep IDs human-readable and SCADA/BMS mappable (533). Photograph every entry before backfill/pour and store in the Photo/Redline Logbook (937) with geo-tagged photos.

622.8 QA checks

Torque glands, water-test penetrations (714). QA protects crash rated bollard reliability.

Add hold/witness points in the ITP (714) for: sleeve positions before pour, hole sizes and finishes, gland model numbers, torque values, and leak tests. For ducts, include mandrel and leak (timed drop) tests. Record results in the SAT/Witness pack (638).

Before energization, run enclosure ingress checks, confirm door-open tampers, and validate 516 protection with visual inspections. These steps reduce nuisance trips and water-related faults that impact availability.

622.9 Typical details

Include standard sections tied to 934. Details reduce HVM bollard rework.

Issue a concise typicals set: (a) foundation wall penetration with seal options (IP65–IP67), (b) pit-wall sleeve with raised gland and drip shield, (c) multi-port transit in plinth, and (d) enclosure base with segregated entries by voltage/control (528). Cross-reference 934 Ducting & Trench Details and 347 Enclosures & Cabling so site teams see consistent dimensions.

Add notes for coastal durability, approved sealants, allowable substitutes, and a “no-field-core” warning near reinforcement to protect 333 design checks. Include a small matrix linking IP options to site zones (internal rooms, pits, external plinths) to speed selection.

622 Sleeves, Penetrations & Cable Glands — FAQ