Vphase vx1 voltage optimizer do i test this how??????????????

[brian 2012]

pls respond asap to my latest post below cheers

 

[brian 2012]

Why not ring you scheme up and see what they advise?

working subbying for a firm as im not in any accociation i cannot get a answer from any accociation's as im not a member! AAAAArrrrrggghhhh. and i would not trust what any firm's response was to my answer by word of mouth as they would tell you any thing so the work would be done quicker. leaving all installations of this on my toes! any problems after installion would be my responsibility and in a court word of mouth to the judge by the firm would be the answer why i didnt do the testing of circuits as they said it didnt need it. wouldnt stand, as they would say we didnt say that, I WOULD BE LIABLE AAAArrrrggh

 

[VPhase plc]

When a VPhase unit has been installed only the circuit feeding the VPhase unit and the output back to the consumer unit need to be tested. This is an addition to an existing installation and so needs to be certificated as such.
P.R.
Please call 0151 348 2141 if you have any further questions.

 

[brian 2012]

is this not a change in configuration (this install the way i have described???? pls explain to myself why it does not come under a CHANGE IN CONFIGURATION and the circuits supplied by the VX1 ALTHO NOT TOUCHED do not need to be retested! THANKYOU. I AWAIT FOR YOUR RESPONSE

 

[VPhase plc]

Brianmdk, Thanks for the query regarding the VPhase and the necessary certification following the installation.

If I can start with the discussions we have had with the electrical associations - NICEIC & NAPIT and hopefully this should clear up the matter.


Certification -
NICEIC - The advice offered from the technical helpline and the techtalks with local engineers is that an EIC - Electrical Installation Certificate. The reason behind this is that the VPhase installation is adding a circuit to an installation as the unit is supplied via a 50amp MCB unit (recommended suggested size of MCB) which is then feeding a selection of circuits.
NAPIT - The certificate that NAPIT members could use is a Minor Works with One Added Circuit. Their certification differs from the NICEIC type as the MEW that NIC members use only covers additions to an installation and does not offer enough relevant areas within the certificate without limitating readings from the certificate. Whereas with the NAPIT certificate allows for the completion of an added circuit and its relevant characteristics associated for the installation of an MCB/Cable etc.

Test & Inspection - As a minimum the newly installed circuit needs to have a full test carried out on it, however care must be taken when carrying out Insulation resistance testing of the cables to and from the VPhase unit as the VPhase contains electronic equipment. If testing at 500v then these cables must be disconnected. As a precaution it is best to carry out IR testing with cables removed. The Zs readings taken must have the meter reading the optimised voltage of around 220volts to capture the added impendance of the VPhase transformer otherwise if the voltage reading is above 220volts this would give a reading of the VPhase not in circuit. The added impedance is around 0.21ohms so this will have an effect of potentially exceeding the recommended maximum Zs whether this is the 80% rule or the values detailed within the regs in Table 41.

Regarding advice on circuits that require testing - The new circuit requires a test as this is an addition to the existing installation. The certificate used, whether the NICEIC or NAPIT one has a requirement for