Cross Arms

During the refurbishment process many of the wood components are now being replaced. Wood is a variable natural element whose structural properties change over time from weather exposure. Many of the wooden crossarms in used in NZ are 30 to 50 years old and are in varying stages of degradation. The costs of cross arm failure in monetary terms and customer ire are both high. Steel crossarms provide a reliable means of reducing this risk — particularly in light of the increased demands being imposed by regulators and customers for improved reliability.

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Description

Steel crossarms are designed and manufactured to meet strict design criteria. This means that they will handle load requirements in extreme as well as normal locations. They will withstand high wind as well as snow and seismic forces where wood will often fail. Steel will not warp, split, twist, shrink or decay like wood and will remain rigid with structural integrity for life

Wooden Crossarms must be inspected regularly whereas Steel Cross arms, being much more durable, have reduced inspection requirements. This significantly reduces the total cost of maintaining the cross arm over the period of its life cycle

Additional information

Cross arms

Cross arm 2 meter, 100 x 75 x 4mm, Cross arm 2 meter, 100 x 100 x 4mm, Cross arm 2.6 meter, 100 x 100 x 4 mm, Cross arm 3 meter, 100 x 100 x 6mm, Cross arm 3 meter, 100 x 150 x 6mm, Cross arm 4 meter,100 x 100 x 6mm, Arm brace, 770 x 40 x 50mm, Arm brace, 950 x 40 x 10mm, Arm brace, 1070 x 60 x 10mm, Pole step, 150 x 40 x 12mm

Information – Mammoth Galvanised Steel

CrossarmsMammoth Crossarms & Stays 2017

Mammoth Pole Step

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