Appendix 1 - Examples of risk assessment documentation
 | BG ETEM Energie Textile Elektro Medienerzeugnisse |
|---|
| Risk assessment - Documentation | Filling and refilling of SF6 gas compartments as well as recovery of non-contaminated SF6 |
|---|
Please note:Entries in italics are sample texts that you can edit to meet your needs.
| Dokumentation |
|---|
| Prepared by: ......................... | Responsible Person: ......................... | |
|---|---|---|
| Status as of: ......................... | Expert consultation: ......................... | |
| Work area: | Electrical service location | |
| Work task: | Filling and refilling of SF6 gas compartments as well as revcovery of non-contaminated SF6 | |
| Description of work tasks |
|---|
Connecting SF6 servicing units and/or SF6 gas containers to the filling unit in SF6 gas compartments; checking all connections and lines for secure seating; execution of the filling process; removal of the filling equipment. Recovering the SF6 gas using the SF6 gas servicing unit; venting and opening the gas compartments; performing maintenance and upgrade work or work upon conclusion of piece or type testing.
| Hazardous substances used/released |
|---|
| Designation | Labelling / H statements | Quantity |
|---|---|---|
| SF6 | Gases under pressure, liquefied gas; H280 | Quantity used varies according to the filling process Released quantities (only with leaks) in small amounts |
| Assessment |
|---|
Risk due to inhalation
There is no exposure to SF6 when properly performed.
In the event of leakage, it cannot be ruled out that small amounts of SF6 will be released. The workplace limit value for SF6 is reliably maintained. The small quantities involved will not lead to a health risk.
Risk due to contact with the skin
Not applicable
Physical-chemical and other hazards
A displacement of oxygen by SF6 is not anticipated.
| Protective measures/Effectiveness |
|---|
| Protective measures/checkpoints | Responsibility (deadline) | Effectiveness/verification |
|---|---|---|
| For technical reasons, another substance cannot be substituted. | Employer | |
| Utilization of the SF6 gas servicing unit, type ______, manufacturer ______, and/or the SF6 filling unit, type ______, manufacturer ______, according to the specifications provided by the equipment manufacturer, as well as provided by the SF6 switchgear and/or the SF6 operating equipment manufacturer(s). | Person responsible for work, all employees | |
| Compliance with smoking, eating and drinking restrictions | Employee | |
| Compliance with restrictions related to work involving a significant heat build-up | Person responsible for work, all employees | |
| Operating instructions are available | Employer | |
| Instruction and consultation on occupational medicine and toxicological matters | Employer, annually |
| Applied directives, regulations and information |
|---|
German Ordinance on Hazardous Substances (Gefahrstoffverordnung, GefStoffV)
TRGS 400 German Technical Rule for Hazardous Substances "Risk assessment for activities involving hazardous substances" (Gefährdungsbeurteilung für Tätigkeiten mit Gefahrstoffen) DGUV Information "SF6 Switchgear and Equipment" ("SF6 -Anlagen und -Betriebsmittel", DGUV Information 213-013)
Technical Report IEC 62271-303, Annex D
| BG ETEM Energie Textile Elektro Medienerzeugnisse |
|---|
| Risk assessment - Documentation | Work related to SF6 gas compartments that may contain SF6 decomposition products |
|---|
Please note:Entries in italics are sample texts that you can edit to meet your needs.
| Dokumentation |
|---|
| Prepared by: ......................... | Responsible Person: ......................... | |
|---|---|---|
| Status as of: ......................... | Expert consultation: ......................... | |
| Work area: | Electrical service location | |
| Work task: | Work related to SF6 gas compartments that may contain SF6 decomposition products | |
| Description of work tasks |
|---|
Recovery of SF6 gas using the SF6 gas servicing unit
Ventilation and opening of the gas compartments
Removal of solid decomposition products using an industrial vacuum cleaner or manually using water-free cleaning agents or cleaning products
Performance of maintenance and upgrade work
| Hazardous substances used/released |
|---|
| Designation | Labelling / H statements | Quantity |
|---|---|---|
| SF6 | Gases under pressure, liquefied gas; H280 | Quantity utilized varies according to the filling process Released quantities (only with leaks) in small amounts |
| Gaseous and solid decomposition products | Decomposition products can be poisonous, causing a hazard to health, irritation or chemical burns | Released quantity varies according to application and damage involved |
| Cleaning agent 3% Na2 CO3 solution | Refer to the safety data sheet, section 5.2/10.6 | Approx. 2 litres |
| Assessment |
|---|
Risk due to inhalation
The inhalation of SF6 and SF6 decomposition products cannot be excluded.
A risk ensues when removing solid decomposition products (switching dust), which can lead to lung damage.
A chemical reaction can result in the release of gasses such as hydrogen fluoride (HF) and sulphur dioxide (SO2 ) when opening a gas compartment. For this reason, short-term exposure may be greater than the working limit value.
Risk due to contact with the skin
Contact with skin may cause irritation or acid burns. A moderate risk exists from skin contact according to TRGS 401.
Physical-chemical and other hazards
A risk of suffocation may ensue due to a displacement of oxygen if a residual quantity of SF6 escapes from the switchgear into the working environment.
| Protective measures/Effectiveness |
|---|
| Protective measures/checkpoints | Responsibility (deadline) | Effectiveness/verification |
|---|---|---|
| For technical reasons, another substance cannot be substituted. | Employer | |
| Utilization of the SF6 gas servicing unit, type ______, manufacturer ______, according to the specifications provided by the equipment manufacturer, as well as provided by the SF6 switchgear and/or the SF6 operating equipment manufacturer(s). | Person responsible for work | |
| Industrial vacuum cleaner, dust class H, will be made available | Employer | |
| Ensure adequate aeration and ventilation. | Person responsible for work | |
| Protective work gear, disposable protective suits with hoods, acid-proof protective gloves, disposable overshoes, safety goggles, protective helmets and respiratory protection (independent of the circulating air) must be provided. | Employer | |
| PPE must be used in accordance with the operating instructions. | Employees | |
| Restricted access zones set up with prohibitory sign D-P006 "Access prohibited for unauthorized persons" visibly mounted. | Person responsible for work | |
| Compliance with smoking, eating and drinking restrictions | Employees | |
| Compliance with restrictions related to work involving a significant heat build-up | Person responsible for work, all employees | |
| A skin protection program is implemented in accordance with the skin protection plan | Employer/all employees | |
| Operating instructions are available | Employer | |
| Instruction and consultation on occupational medicine and toxicological matters | Employer, annually | |
| Occupational medical precautions are organized as a result of the risk assessment and in compliance with the ArbMedVV. Preventive medical data is being collected and maintained | Employer/Company physician | |
| Appropriate containers are available for the collection of used PPE as well as contaminated resources, including switching dust, to ensure their proper disposal. | Employer, Employees |
| Applied directives, regulations and information |
|---|
German Ordinance on Hazardous Substances (Gefahrstoffverordnung, GefStoffV)
TRGS 400 German Technical Rule for Hazardous Substances "Risk assessment for activities involving hazardous substances" (Gefährdungsbeurteilung für Tätigkeiten mit Gefahrstoffen).
TRGS 401 German Technical Rule for Hazardous Substances "Risks resulting from skin contact - identification, assessment, measures" (Gefährdung durch Hautkontakt - Ermittlung. Beurteilung, Maßnahmen)
DGUV Information "SF6 Switchgear and Equipment" ("SF6 -Anlagen und -Betriebsmittel", DGUV Information 213-013)
Technical Report IEC 62271-303, Annex D
| BG ETEM Energie Textile Elektro Medienerzeugnisse |
|---|
| Risk assessment - Documentation | Clarification of faults in SF6 systems with gas leakage |
|---|
Please note:Entries in italics are sample texts that you can edit to meet your needs.
| Dokumentation |
|---|
| Prepared by: ......................... | Responsible Person: ......................... | |
|---|---|---|
| Status as of: ......................... | Expert consultation: ......................... | |
| Work area: | Electrical service location | |
| Work task: | Clarification of faults in SF6 systems with gas leakage | |
| Description of work tasks |
|---|
In the course of a fault report, the switchgear room must be entered by an employee to clarify the fault. The switchgear must be inspected and the extent of the fault determined.
| Hazardous substances used/released |
|---|
| Designation | Labelling / H statements | Quantity |
|---|---|---|
| SF6 | Gases under pressure, liquefied gas; H280 | The volume released will depend on the malfunction |
| Gaseous and solid decomposition products | Decomposition products can be poisonous, causing a hazard to health, irritation or chemical burns | The volume released will depend on the malfunction |
| Assessment |
|---|
Risk due to inhalation
The inhalation of SF6 and SF6 decomposition products cannot be excluded. For this reason, the short-term exposure may be greater than the working limit value.
Inhalation can lead to a health risk and result in damage to the lungs.
Risk due to contact with the skin
Contact with skin may cause irritation or chemical burns. There is a moderate risk from skin contact according to TRGS 401.
Physical-chemical and other hazards
A risk of suffocation may ensue due to a displacement of oxygen if a residual quantity of SF6 escapes from the switchgear into the working environment.
| Protective measures/Effectiveness |
|---|
| Protective measures/checkpoints | Responsibility (deadline) | Effectiveness/verification |
|---|---|---|
| Determining the criteria for remedying malfunctions in accordance with the extent of the damage | Employer/Person responsible for work | |
| All activities that are not related to fault clearance are prevented. | Person responsible for work | |
| Ensure adequate aeration and ventilation. | Person responsible for work | |
| Protective work gear, disposable protective suits with hoods, acid-proof protective gloves, disposable overshoes, safety goggles, protective helmets and respiratory protection (independent of the circulating air) are be provided. | Employer | |
| PPE appropriate to the fault is used in accordance with instructions from the superior. | Employees | |
| Restricted access zones are set up with prohibitory sign D-P006 "Access prohibited for unauthorized persons" visibly mounted. | Person responsible for work | |
| Compliance with smoking, eating and drinking restrictions | Employees | |
| Operating instructions are available | Employer | |
| Instruction and consultation on occupational medicine and toxicological matters | Employer, annually | |
| Occupational medical precaution is organized as a result of the risk assessment and in compliance with the ArbMedVV. Preventive medical data is being collected and maintained | Employer/Company physician |
| Applied directives, regulations and information |
|---|
German Ordinance on Hazardous Substances (Gefahrstoffverordnung, GefStoffV)
German Ordinance on occupational health precautions (Verordnung zur arbeitsmeidizinischen Vorsorge, ArbMedVV)
TRGS 400 German Technical Rule for Hazardous Substances "Risk assessment for activities involving hazardous substances" (Gefährdungsbeurteilung für Tätigkeiten mit Gefahrstoffen).
TRGS 401 German Technical Rule for Hazardous Substances "Risks resulting from skin contact - identification, assessment, measures" (Gefährdung durch Hautkontakt - Ermittlung. Beurteilung, Maßnahmen)
DGUV Information "SF6 Switchgear and Equipment" ("SF6-Anlagen und -Betriebsmittel", DGUV Information 213-013)
Technical Report IEC 62271-303, Annex D