Flame-Retardant Resin Composition

A flame-retardant resin composition comprising:

• a resin component including 30 to 100 parts by weight of a polyphenylene ether resin (A) and 0 to 70 parts by weight of an aromatic vinyl resin (B);
• a silicone compound (C) in an amount of 0.1 to 20 parts by weight per 100 parts by weight of the resin component, the silicone compound being represented by average compositional formula (I):
• R1mR2nSiO(4-m-n)/2 (1)
• (wherein R1 represents a monovalent aliphatic hydrocarbon group having 1 to 4 carbon atoms;
• R2 represents a monovalent aromatic hydrocarbon group having 6 to 24 carbon atoms;
• there may be two or more kinds of R1s and two or more kinds of R2s, respectively;
• and m and n each represent a number satisfying the relationships:
• 1.1≦m+n≦1.7 and 0.4≦n/m≦2.5), the silicone compound having a SiO2 unit in an amount of 10 mole percent or more of all Si atoms;
• and
• a metal silicate compound (D) in an amount of 0.1 to 20 parts by weight per 100 parts by weight of the resin component, the metal silicate compound having a pH of 8.0 or more, containing 30% by weight or more of a SiO2 unit, and having a volume-average particle size of 1 nm to 100 μm.