STERLING ELEGANCE ALUMINIUM

The single system compartment aluminium trunking from Marshall-Tufflex is available with an optional Busbar System from the successful Sterling range. A full range of bonding straps and connectors are available.

POSITIONING

When used as a skirting system sufficient clearance should be allowed for between the floor covering and the trunking with due allowance for wiring accessories.

INSTALLATION

Secure the trunking base every 750mm with no.8 round head screws, utilising the grooves in the base to facilitate the drilling of 6mm clearance holes. Use a fine tooth blade (32/36tpi) or preferably a circular saw with a 350mm diameter fine tungsten tipped blade (96/108tpi) for cutting the aluminium trunking. This will produce an edge requiring minimal deburring.

JOINTS

Consecutive lengths are butt jointed together. The covers are cut square and staggered from the carrier base.

FOR ANGLES AND TEES

Remove the covers from the fittings and store in a safe place to avoid damage. Align and secure within 75mm of the edge of the fitting as previously described.

ACCESSORY BOXES

Remove the appropriate KO or drill the box and feed the cables into the box and clip into the desired location. All Flush Accessories must have front fixing screws visible to enable removal of the cover.

COVER REMOVAL

The cover has been designed to remain captive during normal conditions and minor undulations to the base. To remove cover release accessory screws, using tool LRT1 – insert between cover and base, lifting up to release the cover whilst working along the length. On no account use a screwdriver or other metallic object as this can distort or damage the finish to the cover.

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BUSBAR ASSEMBLY

Upgrades the trunking to a 63A Busbar distribution system. Comprises: carrier support, carrier clip, Busbar rails, protective cover, cover screws. Requires Busbar Adaptor (LAC1) to position Busbar Assembly within the trunking base. For Busbar fittings, accessories and installation please refer to relevant sections.

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EARTHING

Covers, base and metallic fittings are to be cleaned of protective coating and earth bonded. Incoming earth connectors are made using the LBT1 bonding assembly installed in the earth channel of the base. For circuits protected by a device greater than 32A, the connector LBT2 is required to bond two lengths of LTB base together. In final ring or radial 32A circuits the bonding strap LBS1 may be used in the earth channel for bonding lengths of trunking. Covers, end caps and metallic fittings should be bonded using the bonding strap LBS2 onto the earth upstand.

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Bonding Terminal (LBT1)

Terminating the incoming earth to the trunking base. Cable capacity 16mm2.

Bonding Connector (LBT2)

Base earth continuity link for 63A Busbar.

Bonding Strap (LBS1) 4.0mm2

Base earth continuity strap for 32A system.

Bonding Strap (LBS2) 1.5mm2

Base to cover/end cap earth continuity link.

The installation should be in accordance with the latest edition of BS7671 (1992) Wiring Regulations.