Installation inspection is prescribed by law. It’s regulated by the Ordinance on Low-voltage Installations (NIV). With our installation check, we ensure your electrical installations and equipment are in perfect working order and that there is no danger to people or property.

Advice

Email
kontrolle@ewz.ch

Information for electricians and inspection companies

Documents

Work regulations WVCH-CH 2021 (in German)

PDF 1.4 MB

Special provisions from ewz (in German)

PDF 630 kB

Training documentation from the Electricians’ and Planners’ Conference 2023 (in German)

PDF 18.2 MB

Training documentation from the Electricians’ and Planners’ Conference 2022 (in German)

PDF 21.6 MB

Reporting

Information sheets and forms

Documents

Work inspection and meter installation procedure (in German)

PDF 30 kB

Documents

Disassembly of tariff equipment (in German)

PDF 110 kB

Documents

Direct measurement equipment with distribution terminals (in German)

PDF 260 kB

Documents

Information sheet – transformer test terminals (in German)

PDF 60 kB

Documents

On-site requirements for remote meter reading schematics (in German)

PDF 2.1 MB

Family home with an external junction box VMH440 (in German)

PDF 200 kB

MDB with up to 30 meters VMH441 (in German)

PDF 520 kB

MDB more than 30 meters VMH442 (in German)

PDF 750 kB

Remote MDB VMH443 (in German)

PDF 650 kB

Documents

Diagram – TRE with ZFA and/or TRE EEA (in German)

PDF 30 kB

Diagram – EEA storage 3–30 kVA (in German)

PDF 30 kB

Diagram – EEA storage >30 kVA (in German)

PDF 40 kB

Diagram – EEE with 1 WR 30–100 kVA (in German)

PDF 40 kB

Diagram – e-mobility control (in German)

PDF 30 kB

Diagram – boiler ≥ 100 l with night-time clearance (in German)

PDF 30 kB

Diagram – boiler ≥ 100 l without night-time clearance (in German)

PDF 30 kB

Diagram – WP UNT and/or load shedding (in German)

PDF 30 kB

Documents

Information sheet – e-mobility (in German)

PDF 210 kB

Documents

2023 fees (in German)

PDF 370 kB

Grisons distribution grid

Documents

Form – installation notification, equipment order for measurement and control equipment GR (in German)

PDF 410 kB

Form – installation notification GR (in German)

PDF 300 kB

Documents

Form – Technical connection request (in German)

PDF 950 kB

Documents

Proof of safety (SiNa) (in German)

PDF 90 kB

Documents

Diagram – TRE with ZFA and/or TRE EEA (in German)

PDF 30 kB

Diagram – EEA storage 3–30 kVA (in German)

PDF 30 kB

Diagram – EEA storage >30 kVA (in German)

PDF 40 kB

Diagram – EEE with 1 WR 30–100 kVA (in German)

PDF 40 kB

Diagram – e-mobility control (in German)

PDF 30 kB

Diagram – boiler ≥ 100 l with night-time clearance (in German)

PDF 30 kB

Diagram – boiler ≥ 100 l without night-time clearance (in German)

PDF 30 kB

Diagram – WP UNT and/or load shedding (in German)

PDF 30 kB

Documents

Measurement and inspection protocol (in German)

PDF 170 kB