S.L. 545.24 ст. 17Temporary installation.

In the case of a temporary electrical installation the authorised provider shall ensure that:

(a) the electrical installation is provided with the necessary disconnection, protective and other control equipment housed in an insulated weatherproof enclosure (IP 54 or better) in particular for outdoor installations;

(b) electrical installations in public entertainment facilities and outdoor mobile units:

(i) are provided with a suitable means of disconnection and over-current and earth leakage protection which should be a residual current device with an operating current not exceeding 30mA immediately after the electricity service meter;

(ii) are provided with an effective temporary earthing system and all exposed metal that could come into contact with current carrying conductors is properly bonded to the earth electrode;

(c) electrical installations for cranes and construction sites:

(i) are equipped with suitable means for disconnection and over current and earth leakage protection (residual current type with an operating current not exceeding 100mA) immediately after the electricity service meter;

(ii) hand and mobile tool circuits and security lighting shall be protected by means of residual current type devices with operating current not exceeding 30mA;

(iii) an earth electrode shall be provided and all exposed metal that can accidentally come into physical contact with the current carrying conductors must be bonded to the earth electrode;

(d) in the case of decorative street lighting installations:

(i) metal clad equipment such as fuse-switches shall not be used in any part of the installation;

(ii) that reasonable care is taken such that no installation component could come in physical contact with any metal structure and objects;

(iii) where it is necessary to support and suspend the installation components from such structures and objects as in sub-paragraph (ii) suitable non-conductive material is used.