PPE intended for use in potentially explosive atmospheres must be designed and manufactured in such a way that it cannot be the source of an electric, electrostatic or impact-induced arc or spark likely to cause an explosive mixture to ignite.
Maidir le TCP a bheartaítear lena úsáid in atmaisféir a d'fhéadfadh a bheith pléascach, ní mór é a dhearadh agus a mhonarú ar dhóigh nach féidir leis a bheith ina chúis le stua ná le splanc leictreach, leictreastatach nó tuairt-ionduchtaithe ar dócha go bhféadfadh sé cumasc pléascach a lasadh.