### Electricity (Wiring) Regulations 《電力(線路)規例》

17. Display of labels and notices
(1) An identification label and an appropriate warning notice including the words “Danger” and “危險” shall be displayed in a conspicuous position at every entrance of a substation and switchroom.
(2) A warning notice bearing the words “DO NOT REMOVE” and “切勿移去” shall be displayed in a conspicuous position at or near the point of connection of each earthing conductor to an earth electrode, and at or near each main bonding connection.
(3) A warning notice bearing the words “CAUTION—EQUIPMENT UNDER REPAIR” and “小心——器具待修” or “CAUTION—MEN AT WORK” and “小心——工程進行中”, or bearing both warnings, shall be displayed in a conspicuous position at or near the electrical equipment and at the isolation device associated with the electrical equipment on which work is being carried out.
(4) A notice bearing the words “This installation must be tested and certified by a grade (A/B/C/H/R) electrical worker before (date)” and “本裝置須於(日期)前由(A/B/C/H/R)級電業工程人員測試及發出證明書” shall be displayed in a conspicuous position at or near the main distribution board of a fixed electrical installation referred to in regulation 20.
(5) The letters and Chinese characters in a warning notice or identification label shall be legible and large enough for easy reading.
(6) An identification label and warning notice referred to in subregulations (1), (2) and (4) shall be durable and securely fixed in position.
(7) A warning notice under subregulation (3) shall be reasonably durable and shall be placed or affixed so that it cannot be accidentally displaced.

18. Alterations and additions
(1) No alteration or addition shall be made to an existing fixed electrical installation unless—
(a) the ratings and the conditions of the existing electrical equipment of the affected parts are suitable and adequate for the altered circumstances; and
(b) the protection against overcurrent, earth fault currents and dangerous earth leakage currents for the affected parts is altered as necessary for the altered circumstances.
(2) The maximum current demand of a fixed electrical installation after an alteration or addition shall not exceed the existing approved loading for the installation unless the electricity supplier approves a new loading for the installation.

19. First inspection, testing and certification
(1) A fixed electrical installation shall, after completion (including any work completed after repair, alteration or addition) and before it is energised for use, be inspected, tested and certified by a registered electrical worker to confirm that the requirements of the Ordinance have been met.
(2) In the case of a repair, alteration or addition to a fixed electrical installation, only the affected parts of the installation need to be inspected, tested and certified under this regulation.

### Electricity (Wiring) Regulations 《電力(線路)規例》

21. Procedures for inspection, testing and certification
(1) Tests on a fixed electrical installation shall be carried out with proper tools and testing equipment and in accordance with accepted practices so that no danger to persons or property can occur even if the circuit being tested is defective.
(2) Results of tests and inspections shall be recorded, dated and certified by the registered electrical worker who carried out the tests and inspections.
(3) Where a fixed electrical installation is divided into more than one part, the individual parts need not be inspected, tested and certified by the same registered electrical worker, and a single certificate in a form specified by the Director may be issued and certified by a registered electrical worker to cover a number or all of the individual parts, as long as he has received the appropriate certificates certified by other registered electrical workers for the individual parts, and is satisfied that the certificates are completed and signed by a registered electrical worker of appropriate grade.
(4) A registered electrical worker shall ensure that the tests and inspections covered in his certificate have been carried out within a reasonable time, normally not exceeding one month, before the date of certification and that the results of the tests and inspections are satisfactory.

22. Making and keeping of records
(1) A registered electrical contractor shall make and keep all relevant records of electrical work carried out by his employees for the lesser of 5 years or the time since his registration as an electrical contractor.
(2) The owner of a fixed electrical installation referred to in regulation 20 shall make available, for inspection as and when required by the Director, latest test certificates, and, where applicable, a written summary of safety precautions taken for each event of testing and maintenance work carried out on an installation referred to in regulation 20(1)(c).

23. Prescribed period for section 12(2)
For the purposes of section 12(2), 4 months is the prescribed period.

24. Offences and penalties
(1) A person who contravenes regulation 4(5) or (6), 20 or 22(2) commits an offence and is liable to a fine at level 3.
(2) An owner of a fixed electrical installation who fails to comply with the requirements of regulation 17(1), (2), (4), (5) or (6) commits an offence and is liable to a fine at level 3.
(3) An owner of a fixed electrical installation who causes or knowingly allows another person to contravene regulation 18 commits an offence and is liable to a fine at level 5 on a first conviction and a fine at level 6 on a subsequent conviction for the same offence and in either case is liable to imprisonment for 6 months.
(E.R. 1 of 2022)

### Electricity (Exemption) Regulations 《電力(豁免)規例》

1. Citation
These regulations may be cited as the Electricity (Exemption) Regulations.

2. Restriction on exemption under section 9
The Director may only make an exemption order under section 9 in respect of fixed electrical installations that are used for the purpose of—
(a) generating and supplying electricity;
(b) operating railway services;
(c) operating or controlling the cars, trucks or signalling systems that are used for the traffic of a tramway;
(d) providing or maintaining public telecommunications services; (36 of 2000 s. 28)
(e) operating or maintaining tunnels that are used for road or rail traffic;
(f) operating or maintaining aerial ropeways;
(g) producing, relaying or transmitting television or radio programmes for public reception; or
(h) operating or controlling lifts or escalators as defined by section 2(1) of the Lifts and Escalators Ordinance (Cap. 618). (8 of 2012 ss. 156 & 160)

3. Government and Housing Authority exemption
Regulation 2 does not apply to fixed electrical installations that are—
(a) installed or maintained by the Government; or
(b) owned by the Hong Kong Housing Authority.

4. Exemption of supplier / customer connection
In addition to the circumstances under which the Director may make an order under section 9, the Director may, notwithstanding regulation 2, make an order under that section in relation to electrical work that is necessary to connect or disconnect an electricity supplier’s electrical installation to another person’s electrical installation.