Hazardous-area lighting, audits and zoning.
GBKL Services is a Johannesburg engineering company. We classify hazardous areas, inspect Ex installations, compile the dossier, and design lighting that is allowed to be there.
Under your luminaire 32 m yard
Emax 0 lx
Eavg 0 lx
Emin 0 lx
U0 0.00
Mounting height 8 m
One generic 150 W high bay, 21 000 lm, direct light only. One fitting never lights a yard evenly, which is the point. Run it properly in Entrune
Move your cursor: you're the luminaire
The bench
Free tools. Runs in your browser. Nothing uploaded.
Your nameplate, decoded.
Tap any part of the marking. Then paste the one off your own equipment.
Ex eb mb IIC T4 Gb
Increased safety "eb"
Increased safety. Normally used for EPL Gb.
Zones Zone 1, 2
Gas groups IIA, IIB, IIC
Hottest surface 135 °C
Every part of this marking eb Increased safety. Normally used for EPL Gb. mb Encapsulation. Normally used for EPL Gb or Db. IIC Gas group IIC, typical gases hydrogen and acetylene. Covers IIA and IIB too. T4 The hottest any surface gets is 135 °C. The gas or vapour present must ignite above that. Gb Stays safe in normal use and with a likely fault. Zone 1 or 2. Reference only. The certificate and a competent person decide what gets installed.
Services
Gas and dust areas. Hazardous, industrial and mining sites across South Africa.
What you send, what you get back.
Area classification
Scope Zone drawings and classification reports for gas and dust areas.
Works to SANS 10108 · IEC 60079-10-1 · IEC 60079-10-2
You send Plot plan, process materials and conditions, ventilation details.
You get Classification drawing and report by an RSA-accredited professional.
Send your plot plan
Audits and dossiers
Scope Inspection of installed Ex equipment and compilation of the Ex dossier.
Works to SANS/IEC 60079-14 · SANS/IEC 60079-17
You send Equipment list, classification drawing, the certificates you have.
You get Inspection records, a defect register and the compiled dossier.
Book an audit
Ex lighting
Scope Design and supply for hazardous areas. General industrial too: high-mast, perimeter, plant floors.
Works to SANS 10114-1 · SANS/IEC 60079-14
You send Area size, zone and gas group, the lux you need.
You get Layout, lux calculation, fitting schedule and supply.
Send your area
Accreditation support
Scope Help for manufacturers taking Ex equipment through certification in South Africa.
Works to ARP 0108 · IECEx scheme · SANS/IEC 60079 series
You send Product drawings, technical file, test reports.
You get A route through certification and the documents it needs.
Talk it through
Area classification
Gas zones 0, 1, 2. Dust zones 20, 21, 22 follow the same logic.
Classify the area, then choose the equipment.
Tap a zone on this storage tank. The zone sets the protection level the equipment needs.
vapour space
liquid
vent
Illustration, not to scale. Real envelopes come from the release calculation.
Dense hatch: Zone 0 Medium: Zone 1 Sparse: Zone 2 House convention
Zone 1
Gas is Likely to occur in normal operation, now and then.
Needs Gb or Ga
Typical db, eb, ib, mb, pxb
Check equipment for Zone 1
Entrune demo R8.6.2. 12 × 8 m room, six generic fittings at 6 m, 0.7 m working plane, direct + reflected. Eavg 673 lx, U0 0.71.
Prove the design on site, not back at the office.
Load real photometric files, sketch the space, read the lux.
Calculates Indoor rooms, outdoor areas, high-mast, perimeter
Reflections Room radiosity over all six surfaces
Checked against Relux, and Radiance on 800 direct-light and 120 interreflection scenarios
Reads IES and LDT files
Runs Offline, on a phone or tablet
Got an IES or LDT file? Open it in Entrune View , the free photometric viewer. Nothing is uploaded.
About
GBKL Services (Pty) Ltd. Johannesburg.
Ex is not a sideline. It's the work.
GBKL Services is a Johannesburg hazardous-area electrical and lighting engineering company, directed by qualified professionals.
We work across South Africa for hazardous, industrial and mining sites. Explosive atmospheres are the core of it, with general industrial lighting alongside.
EntruneQuick photometric check
Built by GBKL. Free demo, full and branded editions on request.
