https://www.redsafe.co.za/blog.htmlIndustrial engineering, fabrication and HSE articles from Redsafe Group.en-zahttps://www.redsafe.co.za/blog-ndt-methods-for-welded-fabrication.htmlhttps://www.redsafe.co.za/blog-ndt-methods-for-welded-fabrication.htmlFri, 09 Oct 2026 08:00:00 +0200QualityThe five common non-destructive testing methods for welds, what each finds, where each is used, and how NDT extent is specified.https://www.redsafe.co.za/blog-construction-regulations-2014-health-and-safety-file.htmlhttps://www.redsafe.co.za/blog-construction-regulations-2014-health-and-safety-file.htmlFri, 02 Oct 2026 08:00:00 +0200HSEA practical checklist of the Health and Safety File documents South African clients and principal contractors expect under the Construction Regulations, 2014.https://www.redsafe.co.za/blog-weld-inch-diameter-inch-estimating.htmlhttps://www.redsafe.co.za/blog-weld-inch-diameter-inch-estimating.htmlFri, 02 Oct 2026 08:00:00 +0200PipingWhat a diameter-inch is, how DI is counted for butt welds, branches and socket welds, and how contractors use it to price, plan and track piping work.https://www.redsafe.co.za/blog-estimating-welding-hours-piping-structural.htmlhttps://www.redsafe.co.za/blog-estimating-welding-hours-piping-structural.htmlFri, 02 Oct 2026 08:00:00 +0200FabricationHow to estimate welding man-hours for piping and structural steel: productivity norms, correction factors, operator factor and the deposition-rate method.https://www.redsafe.co.za/blog-welding-consumables-estimating.htmlhttps://www.redsafe.co.za/blog-welding-consumables-estimating.htmlFri, 02 Oct 2026 08:00:00 +0200FabricationEstimate welding consumables from joint geometry: weld cross-section, weld metal mass, deposition efficiency by process, shielding gas and electrode storage.https://www.redsafe.co.za/blog-crane-lift-planning-critical-lifts.htmlhttps://www.redsafe.co.za/blog-crane-lift-planning-critical-lifts.htmlFri, 02 Oct 2026 08:00:00 +0200RiggingHow to plan a mobile crane lift: calculating total lifted load, reading the load chart, utilisation limits, tandem lifts, wind and what a lift plan contains.https://www.redsafe.co.za/blog-ground-bearing-pressure-outrigger-mats.htmlhttps://www.redsafe.co.za/blog-ground-bearing-pressure-outrigger-mats.htmlFri, 02 Oct 2026 08:00:00 +0200RiggingHow to check ground bearing pressure under mobile crane outriggers: outrigger loads, kN and kPa conversions, mat sizing, ground hazards and mat materials.https://www.redsafe.co.za/blog-mill-test-certificates-en-10204.htmlhttps://www.redsafe.co.za/blog-mill-test-certificates-en-10204.htmlFri, 02 Oct 2026 08:00:00 +0200QualityWhat EN 10204 type 2.2, 3.1 and 3.2 inspection documents certify, who signs them, what to check on a mill test certificate and how heat numbers stay traceable.https://www.redsafe.co.za/blog-positive-material-identification-pmi.htmlhttps://www.redsafe.co.za/blog-positive-material-identification-pmi.htmlFri, 02 Oct 2026 08:00:00 +0200QualityHow positive material identification works, the difference between XRF and OES, when PMI is specified, how much to sample and what a PMI record should include.https://www.redsafe.co.za/blog-pressure-equipment-regulations-aia.htmlhttps://www.redsafe.co.za/blog-pressure-equipment-regulations-aia.htmlFri, 02 Oct 2026 08:00:00 +0200QualityHow South Africa's Pressure Equipment Regulations work, how SANS 347 categorises equipment and where the Approved Inspection Authority (AIA) is involved.https://www.redsafe.co.za/blog-preheat-interpass-pwht.htmlhttps://www.redsafe.co.za/blog-preheat-interpass-pwht.htmlFri, 02 Oct 2026 08:00:00 +0200FabricationWhy welds need preheat, interpass control and post-weld heat treatment, how temperatures are measured and recorded, and how codes set PWHT requirements.https://www.redsafe.co.za/blog-stainless-steel-fabrication-contamination.htmlhttps://www.redsafe.co.za/blog-stainless-steel-fabrication-contamination.htmlFri, 02 Oct 2026 08:00:00 +0200FabricationHow iron contamination and heat tint undermine stainless steel, and the segregation, purging, pickling, passivation and ferroxyl test practices that control it.https://www.redsafe.co.za/blog-flange-bolting-asme-pcc-1.htmlhttps://www.redsafe.co.za/blog-flange-bolting-asme-pcc-1.htmlFri, 02 Oct 2026 08:00:00 +0200PipingHow to assemble bolted flange joints in line with ASME PCC-1: gasket handling, face inspection, lubrication, torque or tensioning, patterns and joint records.https://www.redsafe.co.za/blog-pump-motor-shaft-alignment.htmlhttps://www.redsafe.co.za/blog-pump-motor-shaft-alignment.htmlFri, 02 Oct 2026 08:00:00 +0200MechanicalHow to align pump and motor shafts: offset and angularity, soft foot and pipe strain checks, thermal growth, dial versus laser methods and typical tolerances.https://www.redsafe.co.za/blog-equipment-foundations-baseplates-grouting.htmlhttps://www.redsafe.co.za/blog-equipment-foundations-baseplates-grouting.htmlFri, 02 Oct 2026 08:00:00 +0200MechanicalHow to install pumps, fans and compressors on concrete: foundation checks, anchor bolts, levelling, cementitious or epoxy grout, curing and post-grout checks.https://www.redsafe.co.za/blog-conveyor-structures-transfer-chutes.htmlhttps://www.redsafe.co.za/blog-conveyor-structures-transfer-chutes.htmlFri, 02 Oct 2026 08:00:00 +0200Structural steelWhat goes into conveyor gantries, trestles, stringers and transfer chutes: idler alignment, liner selection, trial assembly, shutdown tie-ins and safe access.https://www.redsafe.co.za/blog-protective-coatings-iso-12944-galvanising.htmlhttps://www.redsafe.co.za/blog-protective-coatings-iso-12944-galvanising.htmlFri, 02 Oct 2026 08:00:00 +0200Structural steelHow to specify corrosion protection for structural steel: ISO 12944 categories and durability, Sa 2½ blasting, DFT checks, galvanising and paint quantities.https://www.redsafe.co.za/blog-fall-protection-plan-construction-regulations.htmlhttps://www.redsafe.co.za/blog-fall-protection-plan-construction-regulations.htmlFri, 02 Oct 2026 08:00:00 +0200HSEWhat a fall protection plan under the Construction Regulations 2014 must contain: risk assessment, control hierarchy, rescue, equipment, fitness, scaffolds.https://www.redsafe.co.za/blog-permit-to-work-lockout-tagout.htmlhttps://www.redsafe.co.za/blog-permit-to-work-lockout-tagout.htmlFri, 02 Oct 2026 08:00:00 +0200HSEHow permit-to-work and lockout/tagout control work on live plants: permit types, isolation and the try step, group lockboxes, shift handover and close-out.https://www.redsafe.co.za/blog-incident-investigation-root-cause-analysis.htmlhttps://www.redsafe.co.za/blog-incident-investigation-root-cause-analysis.htmlFri, 02 Oct 2026 08:00:00 +0200HSEA practical guide to industrial incident investigation: immediate actions, reporting, evidence, interviews, root cause methods and lasting corrective action.https://www.redsafe.co.za/blog-sprinkler-inspection-testing-maintenance.htmlhttps://www.redsafe.co.za/blog-sprinkler-inspection-testing-maintenance.htmlFri, 02 Oct 2026 08:00:00 +0200Fire systemsWhat owners must keep up on automatic sprinkler systems: routine checks, valve supervision, pump and alarm tests, obstructions, impairment control and records.https://www.redsafe.co.za/blog-industrial-contractor-prequalification-checklist.htmlhttps://www.redsafe.co.za/blog-industrial-contractor-prequalification-checklist.htmlFri, 02 Oct 2026 08:00:00 +0200ProcurementA checklist for prequalifying an industrial contractor in South Africa: compliance documents, ISO scope, HSE record, quality, insurance and capacity.https://www.redsafe.co.za/blog-hydrostatic-pressure-testing-process-piping.htmlhttps://www.redsafe.co.za/blog-hydrostatic-pressure-testing-process-piping.htmlFri, 02 Oct 2026 08:00:00 +0200PipingHow hydrostatic and pneumatic leak tests are specified for process piping under ASME B31.3, how test pressure is calculated and what the record must contain.https://www.redsafe.co.za/blog-coded-welding-wps-pqr-explained.htmlhttps://www.redsafe.co.za/blog-coded-welding-wps-pqr-explained.htmlFri, 02 Oct 2026 08:00:00 +0200FabricationWhat 'coded welder' actually means, how a WPS and PQR work together, and the welding records a client should expect on pressure and structural work.https://www.redsafe.co.za/blog-structural-steel-fabrication-checklist-for-buyers.htmlhttps://www.redsafe.co.za/blog-structural-steel-fabrication-checklist-for-buyers.htmlFri, 02 Oct 2026 08:00:00 +0200Structural steelWhat to put in a structural steel enquiry, the standards SA fabrication is built to, and the quality records to ask for before steel leaves the workshop.https://www.redsafe.co.za/blog-sling-angles-and-lifting-loads.htmlhttps://www.redsafe.co.za/blog-sling-angles-and-lifting-loads.htmlFri, 02 Oct 2026 08:00:00 +0200RiggingHow sling angle changes the load in each leg of a multi-leg sling, with worked examples, and the South African regulations that govern lifting equipment.https://www.redsafe.co.za/blog-planning-a-plant-shutdown.htmlhttps://www.redsafe.co.za/blog-planning-a-plant-shutdown.htmlFri, 02 Oct 2026 08:00:00 +0200MaintenanceA contractor's view of shutdown and turnaround planning: scope freeze, pre-fabrication, permits, isolations, shift structure and handover.https://www.redsafe.co.za/blog-sacpcmo-registration-construction-health-and-safety.htmlhttps://www.redsafe.co.za/blog-sacpcmo-registration-construction-health-and-safety.htmlFri, 02 Oct 2026 08:00:00 +0200HSEWhat the SACPCMO construction health and safety categories mean, why clients ask for them, and how to check a registration before appointing someone.https://www.redsafe.co.za/blog-fire-sprinkler-system-types-explained.htmlhttps://www.redsafe.co.za/blog-fire-sprinkler-system-types-explained.htmlFri, 02 Oct 2026 08:00:00 +0200Fire systemsHow the main automatic sprinkler system types work, where each is used in industrial facilities, and the standards South African installations are designed to.