Surge protection, the South African way
Practical, SANS-accurate guidance on specifying and installing surge protective devices — written for wholesalers, contractors and specifiers working in real Highveld conditions.
Load-shedding switching surges: why electronics die
Load-shedding doesn't just cut your power — every switching cycle sends transient surges into your board that quietly kill electronics. Here's the fix.
11 June 2026SANS 10142-1 and SPDs: what inspectors expect
How SANS 10142-1 treats surge protective devices, what a compliant SPD install looks like on a SA board, and the COC and NRCS LOA evidence inspectors expect.
11 June 2026Solar PV needs a Type 2 SPD — the SANS rules
Every solar PV install in South Africa needs surge protection. Here is what SANS expects on the AC and DC sides, and where an NRCS-approved Type 2 SPD belongs.
11 June 2026Storm-season (Oct–Mar) checklist for contractors
South Africa's storm season runs October to March. A practical pre-season SPD inspection checklist for electrical contractors, board by board and site by site.
11 June 2026Surge protection in South Africa — the practical guide
Why SPDs matter on South Africa's grid, how the Type 1, 2 and 3 classes differ, and where the NRCS-approved PZ-C 275/40 Type 2 fits on a distribution board.