ABB PCS6000 PRODUCT FAMLIY

 • When required, the access or work permit is to be obtained by a person who is authorized for the specific electrical system. 

 • Engage the person responsible for electrical equipment or system to review single-line diagrams, schematics, switching plans, etc. 

 • Ensure the competence of workers. 

 • Check for proper tools for the job. 

 • Determine and select the proper arc-rated Personal Protective Equipment (PPE). 

 • Decide of the appropriate work methods and initiate the Permit To Work (PTW) process. 2) Clearly identify the work location and equipment. 

 • Use your senses (sight, hearing and smell) to identify problem areas. 

 • Define the work area via barriers and barricading and label equipment. 

 • Avoid distractions such as talking or texting on the phone. 3) Disconnect all sources of supply and secure against reconnection by applying Lockout/Tagout. 

 • If ABB is responsible for switching and it cannot be done remotely, then the person performing the switching must be properly trained and wearing the proper PPE identified in step 1. 

 • The Person in Charge of Work (PICW) must ensure that switching is performed in the proper manner by witnessing it from a safe distance if present on site or by engaging the person responsible for switching to identify all isolation points. 

 • Apply Lockout/Tagout (LOTO) to the energy isolation device and if multiple energy isolation devices are involved, then Group LOTO must be implemented with the PICW serving as the Group LOTO Leader.

4) Verify the absence of operating voltage: always test before you touch! Only use properly rated and inspected voltage detection devices and wear proper PPE identified in step 1: 

 • Test voltage detection device 

 • Test for voltage 

 • Test voltage detection device It is highly important that the voltage detection device is tested on a known voltage source such as a Proving Unit or by performing an internal self-test, according to the manufacturer’s instructions, before and after testing for the absence of operating voltage. 5) Carry out earthing and short-circuiting. 

 • Close and lock the earthing switch if the electrical equipment is designed for this purpose or apply portable equipment for earthing and short circuiting. If this is carried out by the customer, then the PICW must ensure that this equipment is properly earthed as a part of the integration/verification and during step 7 when the PICW walks the PTW. 6) Protect against adjacent live parts and take special precautions when close to bare conductors. 

 • Determine minimum approach distances, apply screening or shrouding, and when applicable, padlock both cable and busbar shutters. 

 • If working within the restricted approach boundary or vicinity zone where inadvertent movement could cause contact with live parts, special precautions must be employed, such as the use of the properly rated insulated gloves and tools. 7) Complete the permit to work and “Walk the Permit”. 

 • Check isolation points 

 • Verify that all circuits are isolated and secured 

 • Ensure all parties are integrated with the Lockout/Tagout 

 • Check the earths are properly applied 

 • Answer specific questions from the working group 

 • Ensure the work can proceed without danger 

 • Complete and verify the “Permit to Work”

Possible residual risks

Residual risks must be considered by the converter system integrator and/or plant owner when assessing the hazards of the equipment to personnel. The following risks can pose a hazard to converter system personnel: PRODUCT PCS6000 1) Electric power equipment generates electro-magnetic fields which can cause a hazard to people with metal implants and / or a pacemaker. 2) Converter system components can move unintentionally when being commissioned, operated, or serviced due to: 

 • Operation of the equipment outside the scope of the specifications 

 • Incorrectly assembled or installed equipment 

 • Wrongly connected cables 

 • External influence on, or damage of the equipment 

 • Wrong parameter settings 

 • Software errors 

 • Faulty hardware 3) Hazardous touch voltages can be present on converter system components, which can be caused by: 

 • Operation of the equipment outside the scope of the specifications 

 • External influence on, or damage of the equipment 

 • Induced voltages by external equipment 

 • Condensation on equipment components, or pollution 

 • Faulty hardware 4) High temperatures, noise, particles, or gases can be emitted from converter system components caused by: 

 • Operation of the equipment outside the scope of the specifications 

 • External influence on or damage of the equipment 

 • Wrong parameter settings 

 • Software errors 

 • Faulty hardware