ENG-1991 — Page 267

LAND, PUBLIC WORKS AND UTILITIES

2 255 MW which consists of three 250 MW and two 350 MW dual coal/oil fired units, six 125 MW and one 55 MW gas turbines. There are plans to add a further 350 MW unit to Lamma in the early 1990s.

HEC's transmission system operates at 275 kV, 132 kV and 66 kV and distribution is effected mainly at 11 kV and 346 volts. With the exception of a small proportion of 132 kV overhead transmission lines, all supplies are transmitted and distributed by underground or by submarine cables. The supply is 50 hertz, 200 volts single phase and 346 volts three phase. Supplies at high voltage are also made available to consumers.

The transmission systems of CLP and HEC are interconnected by a cross-harbour link, thereby achieving cost savings to consumers through economic energy transfers between the two systems and a reduction in spinning reserve requirement. The interconnection, commissioned in 1981, now has a capacity of 720 MVA.

CLP's system is also interconnected with that of Guangdong General Power Company of China and electricity is exported to Guangdong Province each day. This interconnection results in better utilisation of the company's generating plant during periods of low demand. Also, in July 1985, CLP signed a contract with the China Merchants Steam Navigation Company Limited for the supply of electricity starting from late 1986 for a period of ten years to the industrial zone of She Kou and the adjacent Che Wan area, both in Guangdong Province. The arrangement, which affords She Kou a reliable electricity supply without subsidy from Hong Kong consumers, is illustrative of the close co- operation on energy matters which has developed on both sides of the border.

On January 18, 1985, the Hong Kong Nuclear Investment Company (a wholly-owned subsidiary of CLP) and the Guangdong Nuclear Investment Company (wholly owned by the Chinese Ministry of Nuclear Industry) signed the Joint Venture Contract for the formation of the Guangdong Nuclear Power Joint Venture Company, to construct and operate a nuclear power station at Daya Bay in Guangdong Province.

The Daya Bay Nuclear Power Station will comprise two 900 MW pressurised water reactors which are scheduled for commissioning in 1992 and 1993. About 70 per cent of the power from these station will be purchased by CLP to meet part of the longer-term demand for electricity in its area of supply.

The new Electricity Ordinance 1990 was enacted on March 23, 1990. It replaced the Old Electricity Supply Ordinance (Cap. 103), which was enacted in 1911 and which became out-of-date and deficient in a number of important areas. The principal objective of the new legislation is to enhance public safety in the use of electricity by providing a completely new framework for detailed regulatory arrangements in respect of electricity-related matters. To achieve this objective, the Electricity Ordinance 1990 has delineated the responsibilities of the government, the supply companies, electrical trade and electricity consumers. Under this ordinance, the following sets of subsidiary regulations were enacted in July 1990:

(a) Electricity (Registration) Regulations 1990;

(b) Electricity (Wiring) Regulations 1990;

(c) Electricity (Exemption) Regulations 1990;

(d) Electricity Supply (Amendment) Regulations 1990; and

(e) Electricity Supply (Special Areas) (Amendment) Regulations 1990.

An important feature of the new electricity legislation is the provision for a registration system of electrical workers and contractors. To ensure in future electrical work will be

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