How to write a switchboard specification in New Zealand
A practical switchboard specification checklist covering ratings, circuits, enclosure, verification, drawings, interfaces and delivery requirements.
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Practical guides for consultants, contractors and plant teams. Understand the choices, prepare a clearer brief and move your project forward.
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Switchboard fault ratings: PSCC, Icw, Ipk and Icc
Understand switchboard fault ratings, distinguish assembly withstand from breaker capacity, and gather the supply data needed for an NZ project.
Read the guideHow to choose a switchboard IP rating
Choose switchboard ingress protection for dust, rain and washdown while accounting for heat, condensation, corrosion and cable entries.
Read the guideCommercial EV charging: planning the supply switchboard
Plan EV charging switchboards around charger input data, managed demand, protection, metering, outdoor conditions and future expansion.
Read the guideSwitchboard forms of separation: Form 1 to Form 4b explained
Understand switchboard forms of separation, the difference between Form 4a and 4b, and what to specify for access, terminals and maintenance.
Read the guideMain switchboard vs distribution board: the difference
Understand how main switchboards and distribution boards fit into an electrical installation, including combined boards, ratings and selection.
Read the guideEPLAN Pro Panel: clearer switchboard design and documentation
How EPLAN schematics and 3D panel layouts support switchboard coordination, manufacturing preparation, revision control and project handover.
Read the guideWhat information is needed to quote a switchboard?
Prepare a useful switchboard enquiry with a single-line diagram, load schedule, supply data, site constraints and clear scope for pricing.
Read the guideHow to compare switchboard manufacturers and quotations
Compare custom switchboard manufacturers on project fit, design evidence, documentation, delivery scope and support, with practical questions for tendering.
Read the guideWhat is a main switchboard? MSB meaning explained
Learn what a main switchboard does, how its ratings and layout are established, and what to consider when specifying an MSB for an NZ site.
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