Power station
Senoko Power Station is a combined cycle plant with a licensed capacity of 2,644 MW and supplies about 20 per cent of Singapore's electricity needs, according to its operator.
Senoko Industrial Zone · intrinsically safe
Intrinsically Safe Mobile Phone in Senoko Industrial Zone
Senoko is an industrial subzone of Sembawang on Singapore's northern coast, best known for Senoko Power Station. Classified areas centre on the power station's gas systems and on fuel storage tank leasing and terminal services, not on the whole estate. This page explains what to look for in an intrinsically safe mobile phone for Senoko, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicintrinsically safe
DeviceMobile Phone
RouteSpecification
WhereSenoko Industrial Zone
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Senoko: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · intrinsically safe
Checklist: intrinsically safe mobile phone for Senoko
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Level of protection | ia, ib or ic matched to the zone | ib, for Zone 1 |
| Entity parameters | Uo, Io and Po within the device limits | Published with the certificate |
| Accessories | Chargers and cases certified with the device | Defined at certification |
| Where it applies | Senoko: Power plant gas and fuel systems, Fuel storage tanks and terminal services | Classified by the site operator |
Product · Senoko Industrial Zone
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Senoko Industrial Zone. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The site · Senoko
Working in Senoko: operators and classified areas
The companies on site and the hazardous-area types a handset is likely to meet there.
Operators and companies on site
- Senoko Energy
- Senoko Services (fuel storage tank leasing and terminals)
- Senoko Gas Supply
Classified areas to expect
- Power plant gas and fuel systems
- Fuel storage tanks and terminal services
Local conditions · Senoko
Site conditions at Senoko: what wears and what limits equipment
Ownership
Senoko Energy lists Marubeni Corporation and Sembcorp Industries as its shareholders.
Field notes · Senoko
More about Senoko that matters for portable equipment
Senoko: industry on the ground
Senoko Power Station is the largest power station in Singapore and was commissioned in 1976, after planning began in the early 1970s under the Public Utilities Board.
Senoko: infrastructure
Its authorised capacity is 2,800 megawatts from seven operating units, and it runs mainly as a combined-cycle gas plant, so gas-turbine halls and fuel systems form its main classified areas.
Senoko: industry on the ground
Natural gas supplies over 90 percent of Singapore's electricity, up from less than 20 percent in 2000, which is why large gas-fired plants such as Senoko dominate the local hazardous-area picture.
Senoko: infrastructure
Combined-cycle units 6 and 7, rated at 431 megawatts each, were completed by 2012 by repowering the second oil-fired steam stage, while units 3 to 5 at 365 megawatts each followed by 2004.
The term · intrinsically safe
What “intrinsically safe” means for a smartphone
Intrinsic safety limits the electrical and thermal energy in a circuit so that neither a spark nor a hot surface can ignite a gas or dust atmosphere, even when a fault occurs. The ib level, used for Zone 1, tolerates one fault. It is the usual way to make a handheld device that a worker carries continuously through a hazardous area.
The IS-04Z1 is designed on this principle for Zone 1 and Zone 21 (marking target II 2 G Ex ib IIC T4). Intrinsic safety is a design basis, not a certificate: certification is in progress and none has been issued yet.
In Senoko. Plant rounds through gas receiving, fuel storage and turbine halls are walking inspections with readings, photos and permits to log. A handheld intrinsically safe phone is intended for that routine, if certification is completed and the owner accepts it. Outage periods with many contractors add to the case for a managed device.
The route · specification
Specifying an intrinsically safe mobile phone for Senoko Industrial Zone
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · Senoko Industrial Zone
Frequently asked questions
Can we buy an intrinsically safe mobile phone in Senoko Industrial Zone today?
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.
What does an intrinsically safe mobile phone in Senoko Industrial Zone cost?
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated quantity and site.
What does ‘intrinsically safe’ mean for the IS-04Z1?
The circuits are designed to limit energy so a spark or hot surface cannot ignite a gas or dust atmosphere, even with one fault (level ib, Zone 1). Certification of that design is in progress.
Which areas at Senoko would use it?
Likely candidates are power plant gas and fuel systems, fuel storage tanks and terminal services. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Is intrinsically safe the same as explosion proof?
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.
When are outages most likely to need extra field devices?
Combined-cycle units are taken offline for planned inspections, and contractor numbers rise during those windows. Dates are set by the operator and the grid, so ask the plant's maintenance planner about the outage calendar and the approved-equipment list.
Does the fuel mix change the equipment requirement?
Natural gas has been the main fuel since 1992, with fuel oil as a back-up. Gas groups and temperature classes differ between natural gas and oil vapour, so devices should be matched to the gas group and temperature class stated in the plant's area classification.
Is the whole Senoko estate a hazardous area?
No. The classified areas are mostly the gas and fuel systems and fuel tanks at the power station, not the estate as a whole. Other tenants have not been checked here. Ask the relevant operator for its classification before assuming a zone, and confirm with the site operator.
Related guides
Keep exploring
More on Senoko Industrial Zone, and on other places in Singapore.
Ex-Proof Mobile Phone Distributor in Senoko Industrial ZoneSame place, different guide
Rugged Mobile Phone in Senoko Industrial ZoneSame place, different guide
Industrial Mobile Phone Distributor in Senoko Industrial ZoneSame place, different guide
IECEx Mobile Phone Distributor in Senoko Industrial ZoneSame place, different guide
ATEX and IECEx Mobile Phone in Senoko Industrial ZoneSame place, different guide
Hazardous Area Mobile Phone in Senoko Industrial ZoneSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Singapore MarineElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Pulau Bukom RefineryElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Singapore RefineryElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Loyang OffshoreElsewhere in Singapore
Singapore market guideCertification route and regulators
All guides for SingaporeEvery route we cover
Certification statusWhat is in progress
Enquiry · Senoko
Ask about the IS-04Z1 for Senoko, Singapore
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Senoko
Launching Q4 2026
Planning for Senoko Industrial Zone?
Name the site and the operator and we will send what is available before launch.