Type 99 Polymer Concrete Pit

Description

Polycrete® (polymer concrete) pits have excellent insulation properties, high mechanical strengths, chemical resistance and zero water absorption, which makes them ideal as electrical and communications enclosures. Lighter and therefore less cumbersome than traditional concrete pits, only large polymer concrete pits require special lifting equipment.

Features

Manufactured from chemical and corrosion resistant lightweight polymer concrete
Pit bodies – 100% non metallic, insulated construction with an electrical resistivity rating of 1×10 8 / sq. (identical to concrete without steel reinforcing)
Easy to fit and seal dividing walls
Easy to handle & cut for cable entry penetration
Range of anti-slip lids and access covers for all load classes to Class G (AS 3996)
OH&S friendly steel lids not exceeding 25kg
IP ratings up to IP4X (AS 60529) – enclosure protection against ingress
Aesthetic, recessed access covers for infill of pavement material to complement or match surrounding pavement
Steel lids and access covers are hot dip galvanised to AS 4680
Access covers are weather resistant

Dimensions

Nominal opening (mm)		Nominal depth (mm)
Length	Width	No Riser	1 Riser	2 Risers	Pit with Lid	Pit with Riser & Lid	Pit with Access Cover	Pit with Riser & Access Cover	Weight
990mm	990mm	582mm	882mm	1182mm					135.4kg

Specifications

General
The cable pit shall be ACO Cablemate Type 99 with lid/access cover* (see below) as manufactured by ACO Pty Ltd. or equal approved.

Materials
The pit/riser bodies shall be manufactured from polyester polymer concrete with:

Electrical resistivity 1 x 108 Ω /sq
Compressive strength: 96MPa
Flexural strength: 27MPa
Water absorption 0.07%
Frost proof
Salt proof
Dilute acid and alkali resistant Surface burn characteristics of the material shall comply with UL 723

The nominal clear opening shall be 855mm x 855mm. Units shall be manufactured with a clear depth of 510mm.

Optional riser
Additional height can be added using one or two polymer concrete riser units – each riser adds up to 300mm height.

Lid/Access cover

The pit shall be covered with a polymer concrete lid*, steel/PowerLok lid*, Urbanfil/Pavermate access cover*, Rhinocast access cover* – see table for compatible options. Installation The cable pit shall be installed in accordance with the manufacturer’s installation instructions and recommendations.

* delete as applicable