Supply by sea
Fuel arrives by coastal tanker from Valero's Pembroke refinery, a sea voyage of roughly 100 miles.
Cardiff is the capital of Wales. The city is bounded to the south by the Severn Estuary and Bristol Channel, with the Taff and Ely flowing into freshwater Cardiff Bay and the Rhymney entering the estuary directly in the east. If you are specifying an explosion proof smartphone for Cardiff and Roath Dock, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Cardiff and Roath Dock: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| Where it applies | Cardiff and Roath Dock: Fuel storage and distribution terminal, Marine jetty and tanker discharge, Road tanker loading | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Cardiff. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
A short profile of the site and the kinds of classified area that matter for portable equipment.
Fuel arrives by coastal tanker from Valero's Pembroke refinery, a sea voyage of roughly 100 miles.
The port is positioned to serve the Cardiff Capital Region, about 1.5 million people or roughly half of Wales.
Cardiff has a maritime climate with an average annual temperature of about 11 degrees Celsius and about 1,200 mm of rain on 153 days a year, with more than 100 mm a month from October to January.
Cardiff Docks once had almost 11 km of quayage and still handle containers, steel, forest products and dry and liquid bulks, though coal exports built the port in the 19th century.
The East Moors Steelworks closed in 1978, and Cardiff Bay was later regenerated under a development corporation, so the city's economy is now centred on commerce, media and public administration rather than heavy industry.
Cardiff became the main port for coal exports from the Cynon, Rhondda and Rhymney valleys after the Marquess of Bute built a dock in the 1830s linked to the Taff Vale Railway.
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In Cardiff and Roath Dock. At a dock fuel terminal the phrase 'explosion-proof' usually means equipment that cannot ignite petrol or diesel vapour around jetty discharge and road tanker loading. Flameproof Ex d enclosures are one route; intrinsic safety is another that suits a handheld. The terminal operator chooses the concept for each area under its DSEAR assessment.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still in progress.
Likely candidates are fuel storage and distribution terminal, marine jetty and tanker discharge, road tanker loading. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
The maritime climate is mild but wet, with rain on about 153 days a year and persistent wind from the Bristol Channel. Typically users want good water ingress protection and routine drying and cleaning of connectors, and should check the device rating against the site.
Not mainly. The city is Wales's commercial and administrative centre, and the old steelworks closed in 1978, though the wider Severn Estuary and South Wales coast host fuel, energy and processing sites. Confirm the operator and site classification for the actual place you will work.
Under DSEAR, the employer assesses hazardous zones and chooses suitable equipment, so the terminal operator and its safety adviser decide. Valero occupies the terminal and Associated British Ports runs the dock. Confirm requirements with the site operator before specifying any handheld device.
More on Cardiff, and on other places in United Kingdom.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.