Inspection of potentially dangerous devices
Inspection of Potentially Hazardous Equipment—The Path to a Safe Workplace.
Inspection of potentially dangerous devices
TUV NORD Lithuania conducts mandatory technical condition inspections of the following categories of potentially hazardous equipment:
The Technical Safety Division of TUV NORD Lithuania is authorized to carry out these activities and is accredited by the Lithuanian National Accreditation Bureau in accordance with the requirements of LST EN ISO/IEC 17020:2012 as a Type A inspection body. Accreditation Certificate –Accreditation CertificateNo. LA.06.003
We perform inspections of steam and water heating boilers
The following devices are being tested
Devices are registered based on their technical specifications:
KA – Steam and Hot Water Boilers:
- KA – 01
Steam boilers with an excess pressure greater than 0.5 bar relative to atmospheric pressure, where the product of the maximum allowable pressure in bars (hereinafter referred to as Ps) and the volume in liters (hereinafter referred to as V) exceeds 3,500 - KA – 02
Water-heating boilers with temperatures exceeding 110 °C, where the product of Ps and V exceeds 10,000
Technical Specifications:
- permissible pressure (bar);
- volume (m³);
- maximum permissible temperature (°C);
- power (kW);
- throughput (t/h);
- type of fuel.
Scheduled inspections of technical condition (code – KA):
- Inspection of an operational boiler (once a year / every 12 months);
- Internal and external inspection (every 4 years / 48 months);
- Hydraulic test (every 8 years / 96 months).
We perform inspections of pressure equipment
The following devices are being tested
Devices are registered based on their technical specifications:
SI – Pressure vessels:
- SI – 01
Containers with a capacity greater than 25 liters, designed for Group 1 flammable substances, with an overpressure greater than 0.5 bar relative to atmospheric pressure, containers with a capacity greater than 25 liters intended for Group 1 flammable substances, the classification of which is established by the Minister of Economy and Innovation of the Republic of Lithuania (hereinafter referred to as “flammable substances”), when the product of Ps and V exceeds 500, except for natural gas, cylinders for liquefied gas and industrial gases - SI – 02
Vessels with a capacity greater than 1,000 liters, designed for Group 2 flammable substances, with a gauge pressure greater than 0.5 bar relative to atmospheric pressure, where the product of Ps and V exceeds 10,000
Technical Specifications:
- maximum allowable pressure (bar);
- volume (m³);
- material name;
- maximum/minimum permissible temperature (°C).
Scheduled inspections of technical condition (code – SI):
- Pressure vessels (Group 1, SI-01):
– inspection of an in-service vessel (every 2 years / 24 months);
– inspection of an in-service vessel (every 2 years / 24 months);
– internal and external inspection (every 4 years / 48 months);
– internal and external inspection (every 10 years / 120 months). - Pressure vessels (Group 2, SI-02):
– inspection of an in-service vessel (every 2 years / 24 months);
– internal and external inspection (every 8 years / 96 months).
We perform inspections of pressurized pipelines carrying hazardous substances, pressurized steam lines, and hot water pipelines
The following devices are being tested
Devices are registered based on their technical specifications:
VL – Pressure pipelines for hazardous substances, pressure steam lines, and hot water pipelines:
- VL – 01
Piping systems with a gauge pressure greater than 0.5 bar relative to atmospheric pressure and a nominal diameter (hereinafter “DN”) greater than 80 millimeters, intended for Group 1 viscous substances, where the product of Ps and DN exceeds 3,500 - VL – 02
Piping systems with a pressure greater than 100 bar, intended for Group 1 viscous substances, regardless of their DN - VL – 03
Piping with a gauge pressure greater than 0.5 bar relative to atmospheric pressure, pipelines, regardless of their DN, intended for the transport of Group 1 viscous substances to or from a facility (vessel) located onshore or at sea, except for pipelines belonging to onshore terminals used to refuel vessels for their own needs - VL – 04
Piping systems for superheated and saturated steam at pressures greater than 16 bar and with a DN greater than 100 millimeters, as well as for hot water at temperatures higher than 110 °C
Note: The Technical Inspection Service does not inspect Category VL-03 equipment.
Technical Specifications:
- length (m);
- nominal diameter (DN);
- maximum allowable pressure (bar);
- material name;
- maximum allowable temperature (°C).
- Scheduled inspections of technical condition (code – VL):
VL – Pressure pipelines for hazardous substances, pressure steam lines, and hot water pipelines:
- VL – 01
Pipelines with a nominal diameter (hereinafter “DN”) greater than 80 millimeters and a gauge pressure greater than 0.5 bar relative to atmospheric pressure, intended for Group 1 viscous substances, where the product of Ps and DN exceeds 3,500 - VL – 02
Pipelines with a pressure greater than 100 bar, intended for Group 1 viscous substances, regardless of their DN - VL – 03
Pipelines with a gauge pressure greater than 0.5 bar relative to atmospheric pressure, pipelines, regardless of their DN, intended for the transport of Group 1 viscous substances to or from a facility (vessel) located onshore or at sea, except for pipelines belonging to onshore terminals used to refuel vessels for their own needs - VL – 04
Pipelines for superheated and saturated steam at pressures greater than 16 bar and DN greater than 100 millimeters, and for hot water at temperatures higher than 110 °C
Note: The Technical Inspection Service does not inspect Category VL-03 equipment.
Technical Specifications:
- length (m);
- nominal diameter (DN);
- maximum allowable pressure (bar);
- material name;
- maximum permissible temperature (°C).
Scheduled inspections of technical condition (code – VL):
| Group of Materials | ParametersPd xDN | Inspection of an Operational Pipeline System | Comprehensive Inspection of the Technical Condition of Pipelines | ||
|---|---|---|---|---|---|
| Corrosion rate > 0.5 mm/year | Korozijos greitis <= 0,5mm/metus | Corrosion rate > 0.5 mm/year | Korozijos greitis <= 0,5mm/metu | ||
| 1 | Pd> 1000 | Once a year | Once every two years | Once every two years | Once every 4 years |
| 1 | Pd> 1000 | Once every two years | Once every 4 years | Once every 4 years | Once every 6 years |
| 2 | regardless of the parameters | Once every 4 years | Once every 6 years | ||
We perform inspections of pressureless containers for hazardous materials
The following devices are being tested
Devices are registered based on their technical specifications:
TA – Unpressurized storage tanks for hazardous substances:
- TA – 01
Non-pressurized substances in volumes of 50 cubic meters or more, in accordance with Regulation (EC) No. 1272/2008 of the European Parliament and of the Council of December 16, 2008, on the classification, labeling, and packaging of chemical substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No. 1907/2006 (OJ 2008 L 353, p. 1), classified as hazardous chemical substances and mixtures (hereinafter referred to as “hazardous substances and mixtures”), with the exception of containers used at gas stations to store fuel (stationary containers) - TA – 02
Tanks (stationary) used for fuel storage at gas stations - TA – 03
Mobile, non-pressurized containers for hazardous substances and mixtures with a volume of 1 cubic meter or more
Technical Specifications:
- material name;
- volume (m3).
Scheduled inspection dates for technical condition checks (code – TA):
- Stationary pressureless tanks (TA-01):
– inspection of in-service TA tanks (every 2.5 years / 30 months);
– internal and external inspection (every 5 years / 60 months). - Fuel Tank Storage Facilities (TA-02):
– internal and external inspection (at least once every 10 years if the storage tank has been in operation for up to 20 years);
– internal and external inspection (at least once every 5 years if the tank has been in service for more than 20 years). - Mobile storage tanks (TA-03):
– interim periodic inspection:
| Tank Type | Inspection Frequency |
|---|---|
| Tank Trucks, Removable Tanks | Every 3 years |
| For container tanks and tanks with removable bodies | Every 2.5 years |
| Stationary tanks, removable tanks made of fiber-reinforced plastic | Every 3 years |
| For tanks—removable bodies made of fiber-reinforced plastic | Every 2.5 years |
| Stationary and Removable Vacuum Waste Tanks | Internal audits are conducted once every 3 years |
| Vacuum container tanks and tanks—removable bodies | Every 2.5 years |
– periodic (internal and external) inspection:
| Tank Type | Inspection Frequency |
|---|---|
| Tank Trucks, Removable Tanks | Every 6 years |
| For container tanks and tanks with removable bodies | Every 5 years |
| Stationary tanks, removable tanks made of fiber-reinforced plastic | Every 6 years |
| For tanks—removable bodies made of fiber-reinforced plastic | Every 5 years |
| Stationary and Removable Vacuum Waste Tanks | They are inspected from the inside once every 3 years |
| Vacuum container tanks and tanks—removable bodies | Every 2.5 years |
We perform elevator inspections
The elevators listed below are being inspected
Devices are registered based on their technical specifications:
LF – Elevators:
- LF – 01
Passenger and passenger-cargo elevators - LF – 02
Freight elevators - LF – 03
Unattended freight elevators in which at least one dimension of the car exceeds the following dimensions: floor area—1.00 square meters, depth—1.00 meter, height—1.20 meters
Technical Specifications:
- lifting capacity (kg);
- speed (m/s);
- number of stops;
- Lifting height (m).
Scheduled inspections of technical condition (code – LF):
- Passenger and passenger-cargo elevators (LF-01):
– partial technical inspection (every 1 year / 12 months);
– full technical inspection (every 3 years / 36 months). - Freight elevators (LF-02):
– partial technical inspection (every 1 year / 12 months);
– full technical inspection (every 3 years / 36 months). - Unattended freight elevators (LF-03):
– partial technical inspection (every 1 year / 12 months);
– full technical inspection (every 3 years / 36 months).
The Technical Inspection Service of UAB “Tuvlita” conducts hazard and risk assessments for elevators in accordance with the Lithuanian standard LST EN 81-80 “Safety Rules for the Design and Installation of Elevators. In-Service Elevators. Part 80. Rules for Improving the Safety of In-Service Passenger and Passenger-Freight Elevators”
A risk assessment for elevators is mandatory upon the expiration of the elevator’s service life as specified by the manufacturer or installer, or, if no such period has been specified, 25 years after the elevator’s first day of operation (see “Elevator Maintenance Regulations,” Section 10).
We would like to remind you that it is prohibited to use an elevator if a hazard and risk assessment for the elevator has not been performed in a timely manner (see “Elevator Maintenance Rules,” Section 14.11).
We perform inspections of motor-driven lifts used to lift people
The following devices are being tested
Devices are registered based on their technical specifications:
KK – Motorized lifts for lifting people and cargo:
- KK – 01
Motor-driven vertical-lift lifts for persons with disabilities with a lifting height greater than 1.50 meters, except for lifts installed for personal use - KK – 02
Engine-powered construction hoists for lifting people and cargo - KK – 03
Engine-powered suspended and stationary platform devices, controlled from a cab or platform, with a lifting height greater than 3 meters, designed to lift or lower workers to their workstations so they can perform work from the work platform - KK – 04
Mobile elevating work platforms with a lifting height greater than 3 meters are intended to lift workers to their workstations so that they can perform work from the work platform.
Technical Specifications:
- lifting capacity (kg);
- lifting height (m);
- speed (m/s);
- number of stops.
Scheduled inspection dates for technical condition checks (code – KK):
- Motor-driven vertical-lift elevators for people with disabilities (KK-01):
– periodic inspection of technical condition (at least once every 2 years / 24 months);
- Mobile work platforms (KK-04):
– partial technical inspection (at least once a year / every 12 months);
– comprehensive technical inspection (at least once every 3 years / 36 months)
We perform inspections of escalators and moving walkways
Devices are registered based on their technical specifications:
EU – Escalators and moving walkways:
- EU – 01
Escalators and moving walkways intended for transporting people.
Technical Specifications:
- number of passengers transported (persons per hour);
- speed (m/s).
Scheduled inspections of technical condition (code – ES):
- Escalators and moving walkways (ES-01):
– technical inspection (every 1 year / 12 months).
We perform inspections of lifting equipment
The following devices are being tested
Cranes are registered based on the values of their technical specifications:
KR – Lifting Equipment:
- KR – 01
Gantry, cable, and jib cranes, as well as crane-stacks, with a lifting capacity of 5metric tons or more, regardless of how they are operated - KR – 02
Overhead, cable-type, jib, and gantry cranes with a lifting capacity of less than 5 metric tons, equipped with an operator’s cab - KR – 03
Jib cranes with a lifting capacity of 1metric ton or more, equipped with mechanisms for adjusting the jib reach and/or slewing
Technical Specifications:
- Lifting capacity (kg).
Scheduled Technical Inspection Dates (Code – KR):
- The following terms apply to all categories of lifting equipment:
– partial technical inspection (every 1 year / 12 months);
– comprehensive technical inspection (every 3 years / 36 months);
– comprehensive technical inspection of rarely used cranes (every 5 years / 60 months);
We perform inspections of equipment that uses combustible gases
The following devices are being tested
Devices are registered based on their technical specifications:
DD – Industrial facilities that use combustible gases:
- DD – 01
Process facilities that burn gaseous fuel and have a rated thermal capacity exceeding 400 kilowatts.
Technical Specifications:
- power (kW).
Scheduled inspection dates for technical condition checks (code – DD):
- Inspection of the operating equipment (once a year / every 12 months);
- Comprehensive inspection of the equipment (every 5 years / 60 months).
What are potentially hazardous devices?
Potentially hazardous installations (PHI) are installations that may pose a threat to human life, health, or the environment due to the energy stored in them or the processes taking place within them, and which are subject to the supervision requirements set forth in the Law on the Supervision of Potentially Hazardous Installations of the Republic of Lithuania (ongoing supervision and periodic inspections).
Electrical equipment also includes control, signaling, interlocking, and protective devices, as well as monitoring and measuring instruments.
A commonly used informal term is “registered PPĮ,” because equipment that exceeds the established special technical parameters (which you can find further down on this page) must be registered in the PPĮ registry, which is administered by the State Labor Inspectorate (more >>).
Why is it mandatory to inspect potentially hazardous equipment?
To ensure the safe operation of potentially hazardous installations in accordance with the provisions of the Law on the Supervision of Potentially Hazardous Installations of the Republic of Lithuania, the technical condition of all such installations must be inspected prior to their initial use and subsequently inspected at regular intervals.
During inspections of the technical condition of PPĮ equipment, it is determined whether the equipment complies with the requirements of regulatory acts governing its maintenance and the manufacturers’ technical documentation. During these inspections, visual inspections, tests, and examinations of the equipment in operation are conducted. Specific types and schedules of periodic inspections have been established for each category of PPĮ, which are listed below.
Only authorized and accredited facilities for inspecting the technical condition of PPĮ are authorized to conduct such inspections.
If you only need an inspection sticker, please look elsewhere; we only perform objective inspections of the technical condition of PPĮ vehicles.
