2. In these Regulations—
“appoint” in relation to a person means appoint in writing with a written statement summarising his duties and authority;
“competent” in relation to a person means a person with sufficient training, experience, knowledge and other qualities to enable him properly to undertake the duties assigned to him;
“detonator” means an initiator for explosives that contains a charge of high explosive fired by means of a flame, spark, electric current or shock tube;
“excavation” means any place at the quarry where minerals are or have been extracted and includes the ground, faces or sides of the quarry and any other incline;
“exploder” means a device designed for firing detonators;
“explosive” means an explosive article or explosive substance;
“explosive article” means an article containing one or more explosive substances;
“explosive substance” means—
a solid or liquid substance, or
a mixture of solid or liquid substances or both,
which is capable by chemical reaction in itself of producing gas at such a temperature and pressure and at such a speed as could cause damage to surroundings or which is designed to produce an effect by heat, light, sound, gas or smoke or a combination of these as a result of non-detonative self-sustaining exothermic chemical reactions;
“explosives” means explosive articles or explosive substances;
“explosives store” means—
premises registered in accordance with section 21 of the Explosives Act 1875(1) (“the 1875 Act”);
a store licensed in accordance with section 15 of the 1875 Act; or
a magazine licensed in accordance with sections 6 to 8 of the 1875 Act;
“misfire” means an occurrence in relation to the firing of shots where—
testing before firing reveals broken continuity which cannot be rectified; or
a shot or any part of a shot fails to explode when an attempt is made to fire it;
“operator” in relation to a quarry means the person in overall control of the working of the quarry;
“quarry” has the meaning assigned to it by the Quarries Regulations (Northern Ireland) 2006(2);
“safety fuse” means a flexible cord that contains an internal burning medium by which fire is conveyed at a continuous and uniform rate for the purpose of firing plain detonators or black powder, without initiating burning in a similar fuse that may be in lateral contact;
“shot” means a single shot or a series of shots fired as part of one blast;
“shotfirer” means a person appointed pursuant to regulation 4(2)(a)(ii) to be responsible for shotfiring operations;
“shotfiring operations” include—
checking to ensure that the blasting specification is still appropriate for the site conditions at the time the blasting is to take place;
mixing explosives;
priming a cartridge;
charging and stemming a shothole;
linking or connecting a round of shots;
withdrawal and sheltering of persons;
inspecting and testing a shotfiring circuit;
firing a shot; and
checking for misfires;
“trainee shotfirer” means a person appointed pursuant to regulation 4(2)(a)(ii) to undergo training in shotfiring operations under the close personal supervision of a shotfirer; and
“vehicle” means any mechanically propelled vehicle (including mechanically propelled plant).