Hi Hoang,
Sorry for the delay in response. Unfortunately, we couldn’t identify the type of timber you’re looking for that’s installed in Saibai Island. However, you can rely on Australian standards and guidelines that’s relevant to power pole selection and installation. Here’s a few resources that might be helpful to your team:
> Ausgrid’s Pole Installation and Removal
> Horizon Power’s Specification—Distribution Network Poles
Regards,
Jean