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Madushani, Wickramasinghe & Aponsu
Model B demand of Arial bundle cables shows a
small trend and high seasonal variations
with seasonal length 12. Two models
SARIMA (0, 0, 0) (0, 1, 1)12 and SARIMA
(0, 0, 0) (0, 1, 1)12 was fitted for the data.
Both models were identified as adequate
models and SARIMA (0, 0, 0) (0, 1, 1)12 was
used for forecasting with an accuracy of
68%.
REFERENCES
Abdulkareem, A., Akinbulire, T.O., &
Figure 4: Normal probability plot
Agbetuyi, A.F. (2014). Improving the
Both models can be considered as good Thermoplastic Extrusion Process in Cable
models for forecasting. By using the MAPE Manufacturing. International Journal of
index the accuracy of the model A and B are Research in Applied, Natural and Social
64% and 68% respectively. Therefore Sciences, 2(4), 193-202.
Model B can be considered as the best Aydemir, E., Bedir, F., & Ozdemir, G.
model for forecasting the demand. (2013). The Grey System Approaches for
Demand Forecasting. Journal of Trends
6 CONCLUSION in the Development of Machinery and
According to the t test, it can be Associated Technology, 17(1), 105-108.
concluded that insulation thickness, Pons, D., Bayley, G., Laurenson, R.,
conductor diameter, and Aluminium weight Hunt, M., Tyree, C., Aitchison, D.
do not follow the standards for any of the (2012). Determinants of Wire Quality.
wires. The outer diameter follows the The Open Industrial and Manufacturing
standards in phase and neutral wires but not Engineering Journal, 19, 19-27.
in light wires. Breaking Strength follows the Pons, D.J., Bayley, G., Tyree,
standards in neutral and light wires but not C., Hunt, M. & Laurenson, R. (2014).
in phase wires. XLPE Weight and resistivity Material Properties of Wire for the
follows standards in light wires but not in Fabrication of Knotted Fences.
other wire types. According to the time International Journal of Metals.
series analysis, it can be concluded that the
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